| tracking paternal genes with dalp markers in a pseudoarrhenotokous reproductive system: biparental transmission but haplodiploid-like inheritance in the mite neoseiulus californicus. | the complexity of some sexual reproductive systems in arthropods still leaves both their genetic and epigenetic determinism and their evolutionary significance poorly understood. pseudoarrhenotoky is characterized by obligate fertilization and differential inactivation and/or elimination of paternal chromosomes in embryos that develop into males. here, we investigate how the paternal genome is transmitted in a pseudoarrhenotokous mite, neoseiulus californicus, using codominant genetic markers de ... | 2000 | 10886386 |
| isolation and characterization by direct amplification of length polymorphisms (dalp) of codominant genetic markers with mendelian inheritance in neoseiulus californicus (acari: phytoseiidae). | we report the first application of a new method designed to isolate polymorphic loci in any organism, the direct amplification of length polymorphism. five polymorphic loci were readily isolated in the predatory mite neoseiulus californicus (acari: phytoseiidae). two to five alleles were identified among 46 isofemale lines based on fragment size variation due to micro-deletions/insertions. genotyping f1 and f2 progenies from controlled heterogametic crosses and backcrosses allowed to establish t ... | 2000 | 11345316 |
| emission of volatile organic compounds by apple trees under spider mite attack and attraction of predatory mites. | emission rates of volatile organic compounds (vocs) from pirus malus l. subsp. mitis (wallr.) var. golden delicious and var. starking attacked by the phytophagous mite panonychus ulmi koch, and their attractiveness to the predatory mites amblyseius andersoni chant and amblyseius californicus mcgregor, were studied during three years. a large variability was found in the emission of individual vocs depending on the infestation, the apple tree variety and the date. there were larger total voc emis ... | 2001 | 11508530 |
| distortion of the spermathecae of phytoseiid mites (acari: phytoseiidae) in slide preparation. | the shape and dimensions of the spermathecae are taxonomically important characteristics in phytoseiid mites. in experiments with neoseiulus californicus (mcgregor) and typhlodromus pyri scheuten, the shape of the cervix of the spermatheca changed considerably and its diameter was increased by 42-49% when mites were flattened, compared to being mounted with 140 microm spacers underneath the coverslips. dimensions of the dorsal shield were also affected by flattening. increasing by 3-5%. | 2001 | 11523918 |
| jerking in predaceous mites (acari: phytoseiidae) with emphasis on larvae. | jerking, a behavior involving a pronounced and often repeated lunging of the body, was studied in larvae among seven species of phytoseiid mites, euseius finlandicus, galendromus occidentalis, neoseiulus californicus, neoseulus fallacis, phytoseiulus macropilis, phytoseiulus persimilis and typhlodromus pyri, and in the nymphal stages of n. fallacis. this behavior was observed in larvae of six of the seven species and in all active immature stages of n. fallacis. jerking was usually triggered by ... | 2001 | 11697785 |
| population dynamics of interacting predatory mites, phytoseiulus persimilis and neoseiulus californicus, held on detached bean leaves. | the success of combined release of the predatory mites phytoseiulus persimilis and neoseiulus californicus in suppression of spider mites may be related to the effects of the interactions between the two predators on their population dynamics. we studied population growth and persistence of the specialist p persimilis and the generalist n. californicus reared singly versus reared in combination after simultaneous and successive predator introductions on detached bean leaf arenas with abundant pr ... | 2001 | 12206584 |
| effect of tomato leaf hairiness on functional and numerical response of neoseiulus californicus (acari: phytoseiidae). | the objective of this study was to determine whether differences in hairiness of tomato plants affect the functional and numerical response of the predator neoseiulus californicus mcgregor attacking the two-spotted spider mite, tetranychus urticae koch. two tomato hybrids with different density of glandular hairs were used. the functional response was measured by offering eggs and adults of t urticae at densities ranging from 4 to 64 items per tomato leaflet (surface ca. 6.3 cm2); eggs were offe ... | 2001 | 12455873 |
| short-term changes in consumption and oviposition rates of neoseiulus californicus strains (acari: phytoseiidae) after a diet shift. | short-term effects on consumption and oviposition rates of four strains of neoseiulus californicus (mcgregor) after a diet shift were evaluated. the new feeding conditions experienced by the predators were six fixed densities of eggs or protonymphs of tetranychus urticae koch placed on excised strawberry leaflet discs and maintained under laboratory conditions (25 +/- 1 degrees c, 75-85% rh, 16l: 8d). the observations were made on the first and the fifth day of the experiment. the phytoseiids ca ... | 2001 | 12465851 |
| predatory behaviors of neoseiulus californicus and galendromus helveolus (acari: phytoseiidae) attacking oligonychus perseae (acari: tetranychidae). | predatory behaviors of neosieulus californicus (mcgregor) and galendromus helveolus (chant) attacking oligonychus perseae tuttle, baker and abbatiello on avocado leaves were videotaped and analyzed. behaviors were recorded for "fresh" predators that were used < or = 48 hr post receipt from a commercial insectary and "cold stored" predators that were maintained at 12 degrees c for approximately 14 days. fresh and cold stored g. helveolus were observed to attack o. perseae only after invading webb ... | 2002 | 12475074 |
| which predatory mite can control both a dominant mite pest, tetranychus urticae, and a latent mite pest, eotetranychus asiaticus, on strawberry? | after biological control of tetranychus urticae using phytoseiulus persimilis, a latent mite pest, eotetranychus asiaticus, was found on strawberries growing in a plastic greenhouse in western japan. to determine whether the release of p. persimilis, an exotic natural enemy of t. urticae, enhanced the occurrence of the latent pest, the efficiency of p. persimilis in controlling e. asiaticus was compared with the efficiency of two indigenous phytoseiid mites, amblyseius californicus and a. womers ... | 2002 | 12542009 |
| effects of temperature on the establishment potential of the predatory mite amblyseius californicus mcgregor (acari: phytoseiidae) in the uk. | amblyseius californicus was introduced into the uk in the early 1990s as a biocontrol agent against glasshouse red spider mite tetranychus urticae. this study investigated the effects of temperature on the establishment potential of a. californicus in the uk in the light of recent reports of their successful overwintering outside of glasshouse environments. the developmental thresholds were 9.9 and 8.6 degrees c respectively using simple and weighted linear regression. using the day-degree requi ... | 2002 | 12770070 |
| phytoseiid mites in protected crops: the effect of humidity and food availability on egg hatch and adult life span of iphiseius degenerans, neoseiulus cucumeris, n. californicus and phytoseiulus persimilis (acari: phytoseiidae). | the effect of relative humidity on egg hatch success for iphiseius degenerans, neoseiulus californicus and n. cucumeris was described by a binomial model with a parallel slope. the shape of the response differed for phytoseiulus persimilis and a model with separate parameters gave a significantly better fit. fitted response curves showed that i. degenerans, n. cucumeris, n. californicus and p. persimilis were ranked by decreasing tolerance to low humidity, with egg mortalities of < 0.5, 3, 12 an ... | 2004 | 15139268 |
| effect of temperature on life history of the predatory mite amblyseius (neoseiulus) californicus (acari: phytoseiidae). | amblyseius (neoseiulus) californicus is an indigenous mite in japan that feeds on many spider mite species. we evaluated the development, survivorship and life-history parameters of a. californicus on a diet of eggs of tetranychus urticae (red form). more than 97.3% of a. californicus eggs hatched and more than 81.6% of newly hatched larvae attained maturity at temperatures between 15 and 35 degrees c. females oviposited at 37.5 degrees c, but no eggs hatched. at 40 degrees c, no females laid eg ... | 2004 | 15139269 |
| the relationship between dietary specialism and availability of food and water on cannibalistic interactions among predatory mites in protected crops. | the interplay between dietary specialism, the tolerance of food and water stress and level of cannibalism is likely to be important in determining the outcome of biological control using inundative releases of multiple natural enemies, such as phytoseiid mites in protected crops. the dietary specialist, phytoseiulus persimilis, with a short immature development time (4-5 days) when plentiful food was available had a low ability to survive without food (5 days), even with access to water. the die ... | 2004 | 15285136 |
| ontogenetic shifts in intraguild predation on thrips by phytoseiid mites: the relevance of body size and diet specialization. | in greenhouse agroecosystems, a guild of spider mite predators may consist of the oligophagous predatory mite phytoseiulus persimilis athias-henriot, the polyphagous predatory mite neoseiulus californicus mcgregor (both acari: phytoseiidae) and the primarily herbivorous but facultatively predatory western flower thrips frankliniella occidentalis pergande (thysanoptera: thripidae). diet-specialization and the predator body size relative to prey are crucial factors in predation on f. occidentalis ... | 2004 | 15541196 |
| amblyseius andersoni chant (acari: phytoseiidae), a successful predatory mite on rosa spp. | roses on commercial nurseries commonly suffer from attacks by the two-spotted spider mite, tetranychus urticae, which have a negative influence on growth and quality. the aim of this project is to find natural enemies that are well adapted to roses, and may improve biological control. at different sites such as a plant collection garden, public parks and field boundaries, leaves were sampled from roses to identify the indigenous species of predatory mites. amblyseius andersoni was amongst other ... | 2004 | 15759407 |
| the involvement of volatile infochemicals from spider mites and from food-plants in prey location of the generalist predatory mite neoseiulus californicus. | we investigated volatile infochemicals possibly involved in location of the generalist predatory mite neoseiulus californicus to plants infested with spider mites in a y-tube olfactometer. the predators significantly preferred volatiles from lima bean leaves infested with tetranychus urticae to uninfested lima bean leaves. likewise, they were attracted to volatiles from artificially damaged lima bean leaves and those from t. urticae plus their visible products. significantly more predators chose ... | 2005 | 16132210 |
| intraguild predation and feeding preferences in three species of phytoseiid mite used for biological control. | the ecological impact of introduced biological control agents on native species of arthropods is a matter of considerable debate. this study investigated the ability of the non-native predatory mite neoseiulus californicus to feed on the native typhlodromus pyri and vice versa, as both species now co-occur in uk orchards. typhlodromips montdorensis is a candidate for introduction into the uk as a glasshouse biological control agent. the ability of t. montdorensis to feed on the widely used n. ca ... | 2005 | 16180071 |
| neoseiulus californicus (acari: phytoseiidae) as a potential control agent of tetranychus urticae (acari: tetranychidae): effect of pest/predator ratio on pest abundance on strawberry. | neoseiulus californicus (mcgregor) is a promising agent for successful tetranychus urticae koch control through conservation techniques, in strawberry crops in la plata (buenos aires, argentina). in prey-predator interaction, initial relative densities have an important effect on system dynamics. the economic threshold level (etl) used for this pest in the present study was 50 active mites per leaflet. in our laboratory experiments, initial t. urticae to n. californicus ratio had a significant e ... | 2005 | 16180072 |
| effects of cyclamen mite (phytonemus pallidus) and leaf beetle (galerucella tenella) damage on volatile emission from strawberry (fragaria x ananassa duch.) plants and orientation of predatory mites (neoseiulus cucumeris, n. californicus, and euseius finlandicus). | volatile emission profile of strawberry (fragaria x ananassa duch.) plants (cvs. polka and honeoye) damaged by cyclamen mite (phytonemus pallidus banks) or leaf beetle galerucella tenella (l.) (cv. polka) was analyzed to determine the potential of these strawberry plants to emit herbivore-induced volatiles. the total volatile emissions as well as emissions of many green leaf volatiles (e.g., (z)-3-hexen-1-ol and (z)-3-hexenyl acetate) and methyl salicylate were greater from cyclamen mite-damaged ... | 2005 | 16248563 |
| intraguild interactions between the predatory mites neoseiulus californicus and phytoseiulus persimilis. | species at the same trophic level may interact through competition for food, but can also interact through intraguild predation. intraguild predation is widespread at the second and third trophic level and the effects may cascade down to the plant level. the effects of intraguild predation can be modified by antipredator behaviour in the intraguild prey. we studied intraguild predation and antipredator behaviour in two species of predatory mite, neoseiulus californicus and phytoseiulus persimili ... | 2006 | 16550333 |
| comparison of single and combination treatments of phytoseiulus persimilis, neoseiulus californicus, and acramite (bifenazate) for control of twospotted spider mites in strawberries. | greenhouse and field experiments were conducted from 2003 to 2005 to determine the effectiveness of combining releases of two predatory mite species, phytoseiulus persimilis athias-henriot and neoseiulus californicus (mcgregor), and a reduced-risk miticide, acramite (bifenazate), for control of twospotted spider mite (tssm) (tetranychus urticae koch) in strawberries. in the greenhouse experiment, a combination treatment of p. persimilis and n. californicus was compared with single treatments of ... | 2006 | 16770685 |
| evaluation of predatory mites and acramite for control of twospotted spider mites in strawberries in north central florida. | greenhouse and field experiments were conducted from 2003 to 2005 to determine the effectiveness of two predatory mite species, phytoseiulus persimilis athias-henriot and neoseiulus californicus (mcgregor), and a reduced-risk miticide, acramite 50 wp (bifenazate), for control of twospotted spider mite, tetranychus urticae koch, in strawberries (fragaria x ananassa duchesne). in greenhouse tests, three treatments consisting of releases of p. persimilis, n. californicus, and an untreated control w ... | 2006 | 16937684 |
| influence of prey on developmental performance, reproduction and prey consumption of neoseiulus californicus (acari: phytoseiidae). | the spical strain of the predatory mite neoseiulus californicus (mcgregor) is used as a biological control agent, but little is known about its preferred prey and host plants in japan. here we studied the development, reproduction and prey consumption of the spical strain when fed on eggs of five different spider mite species deposited on both their laboratory-rearing plant and cherry, on which all five spider mite species developed well. the developmental periods of immature n. californicus fem ... | 2006 | 17120083 |
| management of tetranychus urticae (acari: tetranychidae) in strawberry fields with neoseiulus californicus (acari: phytoseiidae) and acaricides. | the purpose of this study was to evaluate the performance of neoseiulus californicus (mcgregor) for the control of tetranychus urticae koch in commercial strawberry fields, under greenhouse conditions, in association or not with the use of acaricides. the n. californicus strain used in this study was tolerant or resistant to several pesticides. three experiments were carried out in the state of são paulo, brazil. for the first experiment, the initial infestation of t. urticae was 87.1 active sta ... | 2007 | 17549586 |
| incidence of the endosymbionts wolbachia, cardinium and spiroplasma in phytoseiid mites and associated prey. | endosymbiotic bacteria that potentially influence reproduction and other fitness-related traits of their hosts are widespread in insects and mites and their appeal to researchers' interest is still increasing. we screened 20 strains of 12 agriculturally relevant herbivorous and predatory mite species for infection with wolbachia, cardinium and spiroplasma by the use of pcr. the majority of specimens originated from austria and were field collected or mass-reared. eight out of 20 strains (40%) te ... | 2007 | 17554631 |
| interactions among phytophagous mites, and introduced and naturally occurring predatory mites, on strawberry in the uk. | in choice test experiments on strawberry leaf disc arenas the phytoseiid mites neoseiulus californicus and n. cucumeris were more effective than typhlodromus pyri as predators of the phytophagous mites tetranychus urticae and phytonemus pallidus. there were no preferences shown for either prey by any of these predators. in multiple predator leaf disc experiments both phytoseiulus persimilis and n. cucumeris significantly reduced numbers of t. urticae eggs and active stages; this effect was seen ... | 2007 | 17713859 |
| search for effective natural enemies of tetranychus evansi (acari: tetranychidae) in northwest argentina. | the mite tetranychus evansi baker & pritchard (tetranychidae) probably originated in south america. because of its importance as a tomato pest in africa, an extensive project has been conducted to detect potentially effective natural enemies in south america for the classical biological control of the pest in africa. a search for the natural enemies of t. evansi was conducted in the province of tucumán, northwestern argentina, in december 2004, and this report describes the results. one hundred ... | 2007 | 17851767 |
| biological control of twospotted spider mite, tetranychus urticae, with predatory mite, neoseiulus californicus, in strawberries. | greenhouse and field experiments were conducted from 2005 to 2007 to determine the effectiveness of different release times with the predatory mite, neoseiulus californicus (mcgregor), for control of the twospotted spider mite (tssm), tetranychus urticae koch, in strawberries (fragaria x ananassa duchesne). the effect of n. californicus releases over time and on development of tssm populations during a growing season were evaluated. our hypothesis was that repeated applications of n. californicu ... | 2007 | 17924197 |
| toxicity of bifenazate and its principal active metabolite, diazene, to tetranychus urticae and panonychus citri and their relative toxicity to the predaceous mites, phytoseiulus persimilis and neoseiulus californicus. | bifenazate is a novel carbazate acaricide discovered by uniroyal chemical (now chemtura corporation) for the control of phytophagous mites infesting agricultural and ornamental crops. its acaricidal activity and that of its principal active metabolite, diazene, were characterized. bifenazate and diazene had high toxicity and specificity both orally and topically to all life stages of tetranychus urticae and panonychus citri. acute poisoning was observed with no temperature dependency. no cross-r ... | 2007 | 17972019 |
| how do neoseiulus californicus (acari: phytoseiidae) females penetrate densely webbed spider mite nests? | the persea mite oligonychus perseae is a pest of avocado trees that builds extremely dense webbed nests that protect them against natural enemies, including phytoseiid mites. nests have one or two marginal entrances that are small and flattened. the predatory mite neoseiulus californicus co-occurs with o. perseae in the avocado orchards of the south-east of spain. penetration inside nests through the entrances by this predator is thought to be hindered by its size and its globular-shaped body. h ... | 2008 | 18347919 |
| effect of multiple mating on reproduction and longevity of the phytoseiid mite neoseiulus californicus. | females of some insects and mites that mate repeatedly (multiple-mated females) or that have limited food supply have a shortened life span, compared to females that are allowed to mate only once (single-mated females) or that have ample food. the present study focused on the relationship between mating frequency and various reproduction-related parameters in a commercial strain (spical) of the phytoseiid mite neoseiulus californicus (mcgregor) (acari: phytoseiidae). the impetus for this study c ... | 2008 | 18379888 |
| efficacy of five selected acaricides against tetranychus urticae (acari: tetranychidae) and their side effects on relevant natural enemies occurring in citrus orchards. | three groups of natural enemies are fundamental in citrus ipm in spain: coccinellid and phytoseiid predators and hymenopteran parasitoids. tetranychus urticae koch is an important pest affecting citrus, for which biological control has not yet been achieved; therefore, acaricides are commonly used to control it. the goal of this study was to measure the efficacy of different acaricides on this mite and their side effects on three natural enemies relevant for citrus (cryptolaemus montrouzieri mul ... | 2008 | 18383196 |
| evaluation of dry-adapted strains of the predatory mite neoseiulus californicus for spider mite control on cucumber, strawberry and pepper. | the goal of this study was to evaluate spider mite control efficacy of two dry-adapted strains of neoseiulus californicus. performance of these strains were compared to a commercial strain of phytoseiulus persimilis on whole cucumber, pepper and strawberry plants infested with tetranychus urticae at 50 +/- 5% rh. under these dry conditions predators' performance was very different on each host plant. on cucumber, spider mite suppression was not attained by any of the three predators, plants 'bur ... | 2008 | 18566897 |
| evaluation of the predatory mite, neoseiulus californicus, for spider mite control on greenhouse sweet pepper under hot arid field conditions. | the efficacy of neoseiulus californicus (a generalist predatory mite) for the biological control of tetranychus urticae, was compared to release of phytoseiulus persimilis (a specialist predatory mite) and an acaricide treatment in sweet pepper plants grown in greenhouse tunnels in a hot and arid climate. to ensure uniform pest populations, spider mites were spread on pepper plants in two seasons; a natural infestation occurred in one season. predators were released prophylactically and curative ... | 2008 | 18584132 |
| development, long-term survival, and the maintenance of fertility in neoseiulus californicus (acari: phytoseiidae) reared on an artificial diet. | the effectiveness of non-prey food items, such as pollen, honeydew, and microbes, in maintaining phytoseiid mite populations is widely accepted. however, the availability of such naturally occurring non-prey foods varies with the season and surrounding environment; thus, it is difficult to manipulate and maintain supplies of these food sources. a great deal of research has examined the development and reproduction of phytoseiid mites on artificial diets. although phytoseiid mites frequently deve ... | 2008 | 18759131 |
| comparative life-history traits of three phytoseiid mites associated with tetranychus urticae (acari: tetranychidae) colonies in clementine orchards in eastern spain: implications for biological control. | the management of tetranychus urticae, a key pest of clementine trees, is mainly based on the use of acaricides. however, more environmentally safe measures, such as biological control, are being encouraged. life-history traits of the three most abundant phytoseiid mites associated with t. urticae on this crop (euseius stipulatus, phytoseiulus persimilis and neoseiulus californicus) were studied. the experiments were performed under laboratory conditions (25 degrees c, 80 +/- 5% rh and 16:8 h (l ... | 2009 | 18931925 |
| effects of starvation on reproduction of the predacious mite neoseiulus californicus (acari: phytoseiidae). | effects of starvation on gravid females of neoseiulus californicus were investigated at 20 degrees c and 85% rh. when females that had been reared with abundant prey were swapped, just after laying their first egg, to conditions without any prey and water, they laid 1.8 eggs and survived for 4.3 days. in the body of well-fed females, an egg with eggshell and/or two oocytes were observed in the ventral and dorsal regions, respectively. the larger oocyte had two roundish nuclei and abundant yolk g ... | 2009 | 18987979 |
| food scarcity reduces female longevity of neoseiulus californicus (acari: phytoseiidae). | a commercial strain of neoseiulus californicus (spical) has a conspicuously long postoviposition period in comparison with other strains of n. californicus or other phytoseiid mites. in many insects and mites, life span is shorter for multiple-mated females than for single-mated females, and is shorter under poor prey conditions than under ample prey conditions. we previously showed that the postoviposition period of multiple-mated females was 40% shorter than that of single-mated females, but t ... | 2009 | 19015939 |
| alternative food improves the combined effect of an omnivore and a predator on biological pest control. a case study in avocado orchards. | ecological communities used in biological pest control are usually represented as three-trophic level food chains with top-down control. however, at least two factors complicate this simple way of characterizing agricultural communities. first, agro-ecosystems are composed of several interacting species forming complicated food webs. second, the structure of agricultural communities may vary in time. efficient pest management approaches need to integrate these two factors to generate better pred ... | 2009 | 19061535 |
| spatiotemporal within-plant distribution of the spider mite tetranychus urticae and associated specialist and generalist predators. | predators are important determinants of the spatiotemporal distribution of prey within a given habitat. the predator effects may vary with diet specialisation, the associated risk posed to prey and, if multiple predators are present, the predator-predator interactions. we examined the spatiotemporal distribution of the herbivorous spider mite tetranychus urticae and the associated specialist and generalist predators phytoseiulus persimilis and neoseiulus californicus on bean plants. tetranychus ... | 2009 | 19159502 |
| chemical alternatives to malathion for controlling ceratitis capitata (diptera: tephritidae), and their side effects on natural enemies in spanish citrus orchards. | the mediterranean fruit fly, ceratitis capitata (wiedemann) (diptera: tephritidae), is one of the most important fruit pests worldwide. mediterranean fruit fly control in spain has been based on organophosphate sprays, especially malathion, mixed with protein baits. however, this insecticide has recently been excluded from annex 1 of the directive 91/414 cee, which lists authorized active ingredients for pest control in the european union. this article reports on the efficacy of four alternative ... | 2009 | 19253630 |
| a key volatile infochemical that elicits a strong olfactory response of the predatory mite neoseiulus californicus, an important natural enemy of the two-spotted spider mite tetranychus urticae. | herbivore-induced plant volatiles (hipvs) emitted from lima bean leaves infested with the two-spotted spider mites tetranychus urticae strongly attract the predatory mites neoseiulus californicus. among these hipvs, methyl salicylate and linalool can attract the predators. three green-leaf volatiles (glvs) of (z)-3-hexen-1-ol, (z)-3-hexenyl acetate and (e)-2-hexenal, found in the odor blends from t. urticae-infested leaves and physically damaged leaves, can also attract the predators. to search ... | 2010 | 19507042 |
| intraguild interactions between euseius stipulatus and the candidate biocontrol agents of tetranychus urticae in spanish clementine orchards: phytoseiulus persimilis and neoseiulus californicus. | spanish clementine orchards are frequently infested by the two-spotted spider mte tetranychus urticae. natural control of t. urticae is insufficient despite the presence of neoseiulus californicus and phytoseiulus persimilis. the phytoseiid community is dominated by the generalist euseius stipulatus which is poorly adapted to exploit t. urticae. having the intention to promote biological control of t. urticae by augmentative releases we were interested whether p. persimilis and n. californicus a ... | 2010 | 19517257 |
| effects of euseius stipulatus on establishment and efficacy in spider mite suppression of neoseiulus californicus and phytoseiulus persimilis in clementine. | the two-spotted spider mite, tetranychus urticae, is one of the most problematic phytophagous pests in spanish clementine orchards. the most abundant predatory mites in this ecosystem are euseius stipulatus, phytoseiulus persimilis and neoseiulus californicus. euseius stipulatus is dominant but poorly adapted to utilize t. urticae as prey. it mainly persists on pollen and citrus red mite, panonychus citri. a recent study suggested that the more efficacious t. urticae predators p. persimilis and ... | 2010 | 19777356 |
| efficacy of neoseiulus californicus and phytoseiulus persimilis in suppression of tetranychus urticae in young clementine plants. | tetranychus urticae is one of the most damaging tetranychid mites affecting clementine orchards in spain, where natural control is insufficient. furthermore, in clementine nurseries, tender foliage is highly susceptible to attack and natural enemies are almost always absent. therefore, acaricides are often used indiscriminately. alternative control measures are necessary, both in commercial orchards and clementine nurseries. in order to assess the efficacy of inoculative releases of n. californi ... | 2010 | 19784783 |
| occupational asthma caused by the predatory beneficial mites amblyseius californicus and amblyseius cucumeris. | | 2010 | 20360199 |
| the presence of tetranychus urticae (acari: tetranychidae) and its predators on plants in the ground cover in commercially treated vineyards. | the presence of tetranychus urticae and its predators on plants in the ground cover in commercially treated vineyards in the hex river valley, western cape province, south africa was investigated. six barlinka and six dauphine vineyards were surveyed. leaf samples from the plants on the vineyard floor were taken at monthly intervals and microscopically examined for spider mites and their predators. the coverage of the plants was determined using a co-ordinate sampling system. a wide variety of p ... | 2011 | 20844930 |
| toxicity of plant essential oils to acaricide-susceptible and -resistant tetranychus urticae (acari: tetranychidae) and neoseiulus californicus (acari: phytoseiidae). | the toxicity of 10 plant essential oils to adults of acaricide-susceptible, chlorfenapyr-resistant (crt-53), fenpropathrin-resistant (frt-53), pyridaben-resistant (prt-53), and abamectin-resistant (art-53) strains of tetranychus urticae koch (acari: tetranychidae) and to female neoseiulus californicus mcgregor (acari: phytoseiidae) was examined using spray or vapor-phase mortality bioassays. in bioassay with the susceptible adults, lemon eucalyptus (19.3 microg/cm3) was the most toxic oil, follo ... | 2010 | 20857739 |
| threat-sensitive anti-intraguild predation behaviour: maternal strategies to reduce offspring predation risk in mites. | predation is a major selective force for the evolution of behavioural characteristics of prey. predation among consumers competing for food is termed intraguild predation (igp). from the perspective of individual prey, igp differs from classical predation in the likelihood of occurrence because ig prey is usually more rarely encountered and less profitable because it is more difficult to handle than classical prey. it is not known whether igp is a sufficiently strong force to evolve interspecifi ... | 2011 | 21317973 |
| effects of sheltered ground habitats on the overwintering potential of the predacious mite neoseiulus californicus (acari: phytoseiidae) in apple orchards on mainland korea. | neoseiulus californicus (mcgregor) (acari: phytoseiidae) is an effective predator of spider mites. in korea, it is distributed on jeju island, but is never found further north on the mainland. due to poor natural control of spider mites by native predatory mites in mainland orchards, commercialization of the jeju island strain of n. californicus on the mainland is currently being considered. we conducted two field experiments in mainland apple orchards during winter 2008 and 2009 to assess the e ... | 2011 | 21751037 |
| Sex-specific developmental plasticity of generalist and specialist predatory mites (Acari: Phytoseiidae) in response to food stress. | We studied developmental plasticity under food stress in three female-biased size dimorphic predatory mite species, Phytoseiulus persimilis, Neoseiulus californicus, and Amblyseius andersoni. All three species prey on two-spotted spider mites but differ in the degree of adaptation to this prey. Phytoseiulus persimilis is a specialized spider mite predator, N. californicus is a generalist with a preference for spider mites, and A. andersoni is a broad generalist. Immature predators were offered p ... | 2011 | 22003259 |
| effect of temperature on the life-history traits of neoseiulus californicus (acari: phytoseiidae) fed on panonychus ulmi. | the developmental rate and reproductive biology of neoseiulus californicus, a generalist predator on spider mites and small insects, was investigated in the laboratory at five constant temperatures: 15, 20, 25, 30, and 34°c. the european red mite, panonychus ulmi, an important pest in korean apple orchards, was used as prey. mean developmental time and adult longevity were inversely related to temperature from 15 to 30°c. lifetime fecundity was greatest at 25°c, whereas daily fecundity was highe ... | 2012 | 22270114 |
| prenatal chemosensory learning by the predatory mite neoseiulus californicus. | prenatal or embryonic learning, behavioral change following experience made prior to birth, may have significant consequences for postnatal foraging behavior in a wide variety of animals, including mammals, birds, fish, amphibians, and molluscs. however, prenatal learning has not been previously shown in arthropods such as insects, spiders and mites. | 2012 | 23300897 |
| risk assessment of cry toxins of bacillus thuringiensis on the predatory mites euseius concordis and neoseiulus californicus (acari: phytoseiidae). | genetically modified plants carrying cry toxins of bacillus thuringiensis (bt) are widely used for pest control. possible adverse effects as a result of the use of this control technique to non-target organisms is still a concern; however, few studies have addressed the effects of bt crops on phytoseiid predatory mites. phytoseiids are important for the natural control of phytophagous mites, but they can also feed on pollen, plant exudates, etc. thus, phytoseiids may ingest bt toxins through sev ... | 2013 | 23053912 |
| linking pollen quality and performance of neoseiulus californicus (acari: phytoseiidae) in two-spotted spider mite management programmes. | it has been shown that pollen as a dietary supplement may increase the establishment of generalist predatory mites, and therefore pest control by these mites can be provided. life table studies were performed to evaluate the nutritional value of seven different pollens (almond, castor-bean, date-palm, maize, bitter-orange, sunflower and mixed bee pollen) as a supplementary food source for the spider mite predator neoseiulus californicus mcgregor. in addition, the nutritional quality of each poll ... | 2017 | 27117203 |
| conservation biological control in strawberry: effect of different pollen on development, survival, and reproduction of neoseiulus californicus (acari: phytoseiidae). | wild vegetation surrounding crops may provide temporary habitat and potential food sources for phytoseiids in different seasons. monthly vegetation samples of wild plants adjacent to strawberry plants and wild plants in a vegetation strip close to the crop were taken. the frequency of neoseiulus californicus, tetranychus urticae and other mites and insects was recorded. in addition, in a laboratory assay, the survival, developmental time and fecundity of females fed on pollen of strawberry and p ... | 2015 | 26459375 |
| evaluation of site-specific tactics using bifenazate and neoseiulus californicus for management of tetranychus urticae (acari: tetranychidae) in strawberries. | greenhouse and field experiments were conducted to evaluate the effectiveness of site-specific tactics for management of the twospotted spider mite, tetranychus urticae koch, a major pest of greenhouse and field-grown strawberries (fragaria x ananassa duchesne). two site-specific (spot) treatments, the miticide bifenazate (acramite(®)) and the predatory mite neoseiulus californicus mcgregor, were compared with whole-plot treatments of bifenazate or n. californicus to determine whether t. urticae ... | 2016 | 27502111 |
| interspecific interactions involving neoseiulus californicus (acari: phytoseiidae) and agistemus brasiliensis (acari: stigmaeidae) as predators of brevipalpus phoenicis (acari: tenuipalpidae). | brevipalpus phoenicis (geijskes) is associated with the transmission of citrus leprosis which is considered the main viral disease for the brazilian citrus production. mites of the families stigmaeidae and phytoseiidae coexist in various agricultural crops, often promoting the biological control of pest mites. the aim of this work was to study the interactions of neoseiulus californicus (mcgregor) (phytoseiidae) and agistemus brasiliensis matioli, ueckermann & oliveira (stigmaeidae), in the pres ... | 2015 | 25524512 |
| comparison of conventional and integrated programs for control of tetranychus urticae (acari: tetranychidae). | the twospotted spider mite (tssm), tetranychus urticae koch, is one of the main pests on strawberry crops in brazil. tssm can be difficult to control due to acaricide resistance. the objective of this work was to compare the effect of conventional and integrated strawberry production (isp) systems on mite abundance and acaricide resistance. the control of tssm in isp was based on the release of neoseiulus californicus (mcgregor) or application of a selective acaricide (propargite), when tssm mon ... | 2015 | 25280557 |
| susceptibility to deltamethrin in the predatory mites neoseiulus californicus and phytoseiulus macropilis (acari: phytoseiidae) populations in protected ornamental crops in brazil. | knowledge of inter and intra-specific variation in the susceptibility of natural enemies to pesticides could help to better design integrated pest management strategies. the objective of this research was to evaluate the susceptibility to deltamethrin in populations of the predatory mites neoseiulus californicus (mcgregor) and phytoseiulus macropilis (banks) populations collected from protected ornamental crops in brazil. the susceptibility to deltamethrin was characterized against immature and ... | 2012 | 22718193 |
| mite diversity (acari: tetranychidae, tydeidae, iolinidae, phytoseiidae) and within-tree distribution in citrus orchards in southern spain, with special reference to eutetranychus orientalis. | mite diversity of selected citrus orchards in andalusia (southern spain) was studied during 2002-2007. the following species were found: eutetranychus orientalis, tetranychus urticae, panonychus citri (tetranychidae), tydeus californicus, lorryia formosa (tydeidae), pronematus ubiquitus (iolinidae), euseius stipulatus, typhlodromus phialatus, neoseiulus californicus, euseius scutalis, phytoseiulus persimilis, paraseiulus talbii and neoseiulus cucumeris (phytoseiidae). eutetranychus orientalis wa ... | 2017 | 29022207 |
| comparative toxicity of pesticides in three phytoseiid mites with different life-style occurring in citrus: euseius stipulatus, neoseiulus californicus and phytoseiulus persimilis. | conservation and augmentative biological control strategies have been developed to take full advantage of the natural enemies that occur in spanish citrus orchards. among them, the predatory mites euseius stipulatus, neoseiulus californicus and phytoseiulus persimilis play an important role in the biological control of tetranychid mites. however, these predatory mites are often affected by pesticides and information about the side-effects of these products against these beneficial arthropods is ... | 2014 | 23979655 |
| the use of the cannibalistic habit and elevated relative humidity to improve the storage and shipment of the predatory mite neoseiulus californicus (acari: phytoseiidae). | this study investigated the feasibility of using the cannibalistic habits of the mite neoseiulus californicus (mcgregor) and controlling the relative humidity (rh) to prolong the survival time during the storage or shipment of this predatory mite. three-day-old mated and unmated females were individually kept at 25 ± 1 °c in polypropylene vials (1.5 ml), each containing one of the following items or combinations of items: a kidney bean leaf disk (l), n. californicus eggs (e), and both a leaf dis ... | 2016 | 27059865 |
| food stress causes sex-specific maternal effects in mites. | life history theory predicts that females should produce few large eggs under food stress and many small eggs when food is abundant. we tested this prediction in three female-biased size-dimorphic predatory mites feeding on herbivorous spider mite prey: phytoseiulus persimilis, a specialized spider mite predator; neoseiulus californicus, a generalist preferring spider mites; amblyseius andersoni, a broad diet generalist. irrespective of predator species and offspring sex, most females laid only ... | 2015 | 26089530 |
| integration of multiple cues allows threat-sensitive anti-intraguild predator responses in predatory mites. | intraguild (ig) prey is commonly confronted with multiple ig predator species. however, the ig predation (igp) risk for prey is not only dependent on the predator species, but also on inherent (intraspecific) characteristics of a given ig predator such as its life-stage, sex or gravidity and the associated prey needs. thus, ig prey should have evolved the ability to integrate multiple ig predator cues, which should allow both inter- and intraspecific threat-sensitive anti-predator responses. usi ... | 2013 | 23750040 |
| from repulsion to attraction: species- and spatial context-dependent threat sensitive response of the spider mite tetranychus urticae to predatory mite cues. | prey perceiving predation risk commonly change their behavior to avoid predation. however, antipredator strategies are costly. therefore, according to the threat-sensitive predator avoidance hypothesis, prey should match the intensity of their antipredator behaviors to the degree of threat, which may depend on the predator species and the spatial context. we assessed threat sensitivity of the two-spotted spider mite, tetranychus urticae, to the cues of three predatory mites, phytoseiulus persimi ... | 2013 | 23644512 |
| biological control of eotetranychus lewisi and tetranychus urticae (acari: tetranychidae) on strawberry by four phytoseiids (acari: phytoseiidae). | the spider mite, eotetranychus lewisi (mcgregor) (acari: tetranychidae), is a new emerging pest in california commercial strawberries. the predatory mite phytoseiulus persimilis (athias-henriot) (acari: phytoseiidae), typically used for biocontrol of tetranychus urticae (koch) (acari: tetranychidae), provided growers little to no control of e. lewisi. four commonly used phytoseiid predatory mites: p. persimilis, neoseiulus californicus (mcgregor), n. fallacis (garman), and amblyseius andersoni ( ... | 2013 | 23448018 |
| phenotypic plasticity in anti-intraguild predator strategies: mite larvae adjust their behaviours according to vulnerability and predation risk. | interspecific threat-sensitivity allows prey to maximize the net benefit of antipredator strategies by adjusting the type and intensity of their response to the level of predation risk. this is well documented for classical prey-predator interactions but less so for intraguild predation (igp). we examined threat-sensitivity in antipredator behaviour of larvae in a predatory mite guild sharing spider mites as prey. the guild consisted of the highly vulnerable intraguild (ig) prey and weak ig pred ... | 2013 | 23104106 |
| intraguild predation between amblyseius swirskii and two native chinese predatory mite species and their development on intraguild prey. | amblyseius swirskii, native to the east and southeast mediterranean region, is a successful biological control agent of whiteflies. in this study, we investigated intraguild predations (igp) between each stage of a. swirskii and each stage of two phytoseiid species that occur in china, amblyseius orientalis and neoseiulus californicus. when there was no whitefly egg provided as the extraguild prey, igp between a. swirskii and a. orientalis, and between a. swirskii and n. californicus, was observ ... | 2016 | 26972164 |
| functional responses and prey-stage preferences of a predatory gall midge and two predacious mites with twospotted spider mites, tetranychus urticae, as host. | the twospotted spider mite, tetranychus urticae koch (acari: tetranychidae), is an important pest of vegetables and other economically important crops. this study evaluated the functional responses and prey-stage preferences of three species of predators, a predatory gall midge, feltiella acarisuga (vallot) (diptera: cecidomyiidae), and two predatory mite species, neoseiulus californicus (mcgregor) (acari: phytoseiidae) and amblyseius swirskii (anthiashenriot), with t. urticae as the host, under ... | 2013 | 23879370 |
| when do predatory mites (phytoseiidae) attack? understanding their diel and seasonal predation patterns. | predatory mites of the phytoseiidae family are considered one of the most important groups of natural enemies used in biological control. the behavioral patterns of arthropods can differ greatly daily and seasonally; however, there is a lack of literature related to phytoseiidae diel and seasonal predation patterns. the predatory activity of three phytoseiid species (two tetranychidae-specialists, phytoseiulus persimilis and neoseiulus californicus, and one omnivore, euseius stipulatus) that occ ... | 2017 | 28620988 |
| predatory interactions between prey affect patch selection by predators. | when predators can use several prey species as food sources, they are known to select prey according to foraging efficiency and food quality. however, interactions between the prey species may also affect prey choice, and this has received limited attention. the effect of one such interaction, intraguild predation between prey, on patch selection by predators was studied here. the predatory mite neoseiulus californicus preys on young larvae of the western flower thrips frankliniella occidentalis ... | 2017 | 28356611 |
| non-associative versus associative learning by foraging predatory mites. | learning processes can be broadly categorized into associative and non-associative. associative learning occurs through the pairing of two previously unrelated stimuli, whereas non-associative learning occurs in response to a single stimulus. how these two principal processes compare in the same learning task and how they contribute to the overall behavioural changes brought about by experience is poorly understood. we tackled this issue by scrutinizing associative and non-associative learning o ... | 2017 | 28088215 |
| pesticide compatibility with natural enemies for pest management in greenhouse gerbera daisies. | pesticides commonly used in commercial greenhouse management were evaluated for compatibility with two biological control agents: a leafminer parasitoid (diglyphus isaea [walker]), and a predatory mite (neoseiulus californicus [mcgregor]). these natural enemies were exposed to miticides, fungicides, and insecticides targeting leafminers, thrips, and whiteflies, according to label directions in laboratory vial assays, after which mortality at 12, 24, and 48 h was recorded. greater mortality of pr ... | 2013 | 24020270 |
| low level of polyandry constrains phenotypic plasticity of male body size in mites. | polyandry, i.e. females mating with multiple males, is more common than previously anticipated and potentially provides both direct and indirect fitness benefits to females. the level of polyandry (defined by the lifetime number of male mates of a female) is an important determinant of the occurrence and intensity of sexual selection acting on male phenotypes. while the forces of sexual selection acting on phenotypic male traits such as body size are relatively well understood, sexual selection ... | 2017 | 29190832 |
| effects of low temperature on spider mite control by intermittent ultraviolet-b irradiation for practical use in greenhouse strawberries. | the application of ultraviolet-b (uvb) radiation to control spider mites is challenging as a key technology for integrated pest management (ipm) in greenhouse strawberries in japan. to address this, concurrent use of phytoseiid mites and reduced uvb irradiance is desirable to ensure control effects in areas shaded from uvb radiation and to minimize the sunscald in winter, respectively. we designed experiments reproducing the uvb dose on the lower leaf surfaces in strawberry and evaluated the eff ... | 2017 | 29186383 |
| interference in early dual-task learning by predatory mites. | animals are commonly exposed to multiple environmental stimuli, but whether, and under which circumstances, they can attend to multiple stimuli in multitask learning challenges is elusive. here, we assessed whether simultaneously occurring chemosensory stimuli interfere with each other in a dual-task learning challenge. we exposed predatory mites neoseiulus californicus early in life to either only conspecifics (kin) or simultaneously conspecifics (kin) and food (thrips or pollen), to determine ... | 2017 | 29104298 |
| cry protein in the predatory mite neoseiulus californicus and spider mite tetranychus urticae prey fed with transgenic maize. | | 2017 | 28658389 |
| quantitative analysis of long-term mass rearing of neoseiulus californicus (acari: phytoseiidae) on almond pollen. | long-term feeding effects of the almond pollen on the life table parameters of neoseiulus californicus mcgregor were assessed after 5, 10, and 20 generations after introduction in the rearing arena. furthermore, to evaluate behavioral characteristics of the mass-reared predator (strain a) in face with the real prey, functional and numerical responses of the predator to different densities of the twospotted spider mite nymphs were determined, and the obtained data were compared with those reared ... | 2017 | 28419239 |
| pesticide-mediated displacement of a phytoseiid predator, neoseiulus womersleyi, by another phytoseiid predator, n. californicus (acari: phytoseiidae). | neoseiulus womersleyi and n. californicus are two predators that are frequently used to control spider mites in fruit-tree orchards. neoseiulus womersleyi used to be the dominant predator species in japan, but since the 1990s in central and southwestern japan, n. californicus populations have been increasing and have displaced populations of n. womersleyi. we previously observed the same phenomenon under laboratory conditions when these species were released at a 1:1 ratio, and attributed the di ... | 2016 | 27207574 |
| ultimate drivers and proximate correlates of polyandry in predatory mites. | polyandry is more widespread than anticipated from bateman's principle but its ultimate (evolutionary) causes and proximate (mechanistic) correlates are more difficult to pinpoint than those of polygyny. here, we combined mating experiments, quantification of reproductive traits and microsatellite genotyping to determine the fitness implications of polyandry in two predatory mite species, where males are highly polygynous (up to 45 fertilized females during life), whereas females range from mona ... | 2016 | 27100395 |
| intraguild interactions among three spider mite predators: predation preference and effects on juvenile development and oviposition. | a first step to evaluate potential negative effects of intraguild predation (igp) when using multiple predators against a pest species is the determination of the predation behavior of the predators and the nutritional value of intraguild (ig) prey in terms of development and oviposition. here, we investigated the predation preference of the female predatory mites neoseiulus californicus, typhlodromus bagdasarjani and phytoseius plumifer, when having choice between larvae of the two other predat ... | 2015 | 26462926 |
| [effects of brief exposure to high temperature on neoseiulus californicus]. | to determine the influence of high temperature shock on the survival characteristics and population development of n. californicus, the hatching rate, survival rate and developmental duration were investigated after the eggs, larvae and adults of n. californicus were exposed to high temperatures (35, 38, 42, 45 °c) for 1-8 h. the results showed that with higher temperature and longer time, the survival rate of eggs and larvae would be lower, and their developmental duration declined firstly and ... | 2015 | 26211069 |
| diurnal temperature variations affect development of a herbivorous arthropod pest and its predators. | the impact of daily temperature variations on arthropod life history remains woefully understudied compared to the large body of research that has been carried out on the effects of constant temperatures. however, diurnal varying temperature regimes more commonly represent the environment in which most organisms thrive. such varying temperature regimes have been demonstrated to substantially affect development and reproduction of ectothermic organisms, generally in accordance with jensen's inequ ... | 2015 | 25874697 |
| interdependent effects of male and female body size plasticity on mating behaviour of predatory mites. | the adaptive canalization hypothesis predicts that traits with low phenotypic plasticity are more fitness relevant, because they have been canalized via strong past selection, than traits with high phenotypic plasticity. based on differing male body size plasticities of the predatory mites phytoseiulus persimilis (low plasticity) and neoseiulus californicus (high plasticity), we accordingly hypothesized that small male body size entails higher costs in female choice and male-male competition in ... | 2015 | 25673881 |
| life history of neoseiulus californicus (mcgregor, 1954) (acari: phytoseiidae) fed with castor bean (ricinus communis l.) pollen in laboratory conditions. | the predatory mite, neoseiulus californicus (mcgregor, 1954) (acari: phytoseiidae) is one of the principal natural enemies of tetranychid mites in several countries, promoting efficient control of those mites in several food and ornamental crops. pest attacks such as that of the spider mite, tetranychus urticae koch, 1836 (acari: tetranychidae), is one of the problems faced by farmers, especially in the greenhouse, due to the difficulty of its control with the use of chemicals because of the dev ... | 2014 | 25296220 |
| canalization of body size matters for lifetime reproductive success of male predatory mites (acari: phytoseiidae). | the adaptive canalization hypothesis predicts that highly fitness-relevant traits are canalized via past selection, resulting in low phenotypic plasticity and high robustness to environmental stress. accordingly, we hypothesized that the level of phenotypic plasticity of male body size of the predatory mites phytoseiulus persimilis (low plasticity) and neoseiulus californicus (high plasticity) reflects the effects of body size variation on fitness, especially male lifetime reproductive success ( ... | 2014 | 25132689 |
| effect of hexythiazox and spiromesifen resistance on the life cycle of the predatory mite neoseiulus californicus (acari: phytoseiidae). | neoseiulus californicus (mcgregor) (acari: phytoseiidae) is one of the most important and effective predators of tetranychus spp. (acari: tetranychidae). this study analyzed the effects of hexythiazox and spiromesifen resistance on biological characteristics of n. californicus. pre-oviposition, oviposition, post-oviposition times, adult lifespan, total number of eggs laid per female, net reproductive rate (r0), intrinsic rate of increase (rm), doubling time (dt), mean generation time (t) and fin ... | 2014 | 24777359 |
| spectrum-specific uv egg damage and dispersal responses in the phytoseiid predatory mite neoseiulus californicus (acari: phytoseiidae). | solar ultraviolet-b (uvb) radiation is deleterious to plant-dwelling mites. neoseiulus californicus (mcgregor) is a predominant predator of agriculturally important pest species of spider mite. however, phytoseiid mites are more vulnerable to uvb radiation than spider mites. thus, the uvb radiation may influence decision making in foraging phytoseiid mites whether disperse or not. we tested the difference in impact and behavioral response among wavelengths of monochromatic uv radiation using a s ... | 2014 | 24690314 |
| rapid cold hardening response in the predatory mite neoseiulus californicus. | we investigated the rapid cold hardening (rch) response in the predatory mite neoseiulus californicus (mcgregor) (acari: phytoseiidae). on direct exposure, ≤2 % of adult females survived -10 °c for 2 h. however, when acclimatized first at 5 °c for 1 h, 75 % of females survived. rch could also be induced by acclimatization at 30 °c for 2 h or anoxia (oxygen-free nitrogen) for 1-2 h. all immature stages showed enhanced survival when acclimatized at 5 °c for 2 h before exposure to -10 °c. acclimati ... | 2014 | 24682616 |
| factors determining species displacement of related predatory mite species (acari: phytoseiidae). | neoseiulus womersleyi (acari: phytoseiidae) used to be the dominant species in fruit-tree orchards throughout japan, but starting in the 1990s, n. womersleyi began to be displaced by neoseiulus californicus in central and southwestern japan. the present study was conducted to examine factors explaining the displacement of n. womersleyi by n. californicus. first, we confirmed under laboratory conditions that n. californicus could exclude n. womersleyi if they initially coexisted in a 1:1 ratio. d ... | 2014 | 24515777 |
| the influence of variable temperature and humidity on the predation efficiency of p. persimilis, n. californicus and n. fallacis. | predatory mites like phytoseiulus persimilis athias-henriot, neoseiulus californicus mcgregor and n. fallacis (garman) (acari: phytoseiidae) are essential in sustainable control strategies of the two-spotted spider mite tetranychus urticae koch (acari: tetranychidae) in warm greenhouse cultures to complement imited available pesticides and to tackle emerging resistance. however, in response to high energy prices, greenhouse plant breeders have recently changed their greenhouse steering strategie ... | 2014 | 26084089 |
| is neoseiulus wearnei the neoseiulus californicus of australia? | species of the family phytoseiidae are known as predatory mites, some of them being used in crops to control mite pests, all around the world. neoseiulus (=cydnodromus) californicus is among the most commonly used phytoseiidae species in biological control programs, especially in vineyards, orchards and vegetable fields. this species is distributed world-wide but has never been reported from australia. on the other hand, specimens morphologically close to n. californicus have been assigned to a ... | 2014 | 24122169 |
| intraguild predation among scolothrips longicornis (thysanoptera: thripidae), neoseiulus californicus and typhlodromus bagdasarjani (acari: phytoseiidae) under laboratory conditions. | this study was carried out on the ability of predatory thrips scolothrips longicornis priesner to feed on 2 phytoseiid species and vice versa. also the effect of predation of neoseiulus californicus (mcgregor) on typhlodromus bagdasarjani wainstein and arutunjan and vice versa was evaluated. the larvae, prepupae, and pupae of thrips and the eggs, larvae, and protonymphs of phytoseiids were selected as intraguild prey. the intraguild predation (igp) among s. longicornis and 2 phytoseiid species w ... | 2015 | 23956242 |
| metabolic engineering of the c16 homoterpene tmtt in lotus japonicus through overexpression of (e,e)-geranyllinalool synthase attracts generalist and specialist predators in different manners. | plant defenses against herbivores include the emission of specific blends of volatiles, which enable plants to attract natural enemies of herbivores. we characterized a plastidial terpene synthase gene, pltps2, from lima bean (phaseolus lunatus). the recombinant pltps2 protein was multifunctional, producing linalool, (e)-nerolidol and (e,e)-geranyllinalool, precursors of (e,e)-4,8,12-trimethyltrideca-1,3,7,11-tetraene [tmtt]. transgenic lotus japonicus and nicotiana tabacum plants, expressing pl ... | 2013 | 23952336 |
| determination of the inheritance, cross-resistance and detoxifying enzyme levels of a laboratory-selected, spiromesifen-resistant population of the predatory mite neoseiulus californicus (acari: phytoseiidae). | neoseiulus californicus of the family phytoseiidae is an effective predatory mite species that is used to control pest mites. | 2014 | 23907738 |
| air temperature optimisation for humidity-controlled cold storage of the predatory mites neoseiulus californicus and phytoseiulus persimilis (acari: phytoseiidae). | humidity-controlled cold storage, in which the water vapour pressure is saturated, can prolong the survival of the predatory mites neoseiulus californicus (mcgregor) and phytoseiulus persimilis athias-henriot (acari: phytoseiidae). however, information on the optimum air temperature for long-term storage by this method is limited. the authors evaluated the survival of mated adult females of n. californicus and p. persimilis at 5.0, 7.5, 10.0 and 12.5 °c under saturated water vapour condition (va ... | 2014 | 23813684 |
| alternating temperatures affect life table parameters of phytoseiulus persimilis, neoseiulus californicus (acari: phytoseiidae) and their prey tetranychus urticae (acari: tetranychidae). | increasing energy costs force glasshouse growers to switch to energy saving strategies. in the temperature integration approach, considerable daily temperature variations are allowed, which not only have an important influence on plant growth but also on the development rate of arthropods in the crop. therefore, we examined the influence of two constant temperature regimes (15 °c/15 °c and 20 °c/20 °c) and one alternating temperature regime (20 °c/5 °c, with an average of 15 °c) on life table pa ... | 2013 | 23661271 |
| vulnerability and behavioral response to ultraviolet radiation in the components of a foliar mite prey-predator system. | ambient ultraviolet-b (uvb) radiation impacts plant-dwelling arthropods including herbivorous and predatory mites. however, the effects of uvb on prey-predator systems, such as that between the herbivorous spider mite and predatory phytoseiid mite, are poorly understood. a comparative study was conducted to determine the vulnerability and behavioral responses of these mites to ultraviolet (uv) radiation. first, we analyzed dose-response (cumulative irradiance-mortality) curves for the eggs of ph ... | 2012 | 23093097 |