| phytophagous mite populations on tahiti lime, citrus latifolia, under induced drought conditions. | in the north-western region of venezuela, phyllocoptruta oleivora, tetranychus mexicanus and brevipalpus phoenicis are common plant-feeding mites on leaves, fruits and branches of tahiti lime, citrus latifolia. the population dynamics of these herbivores are affected by many factors, such as weekly treatments with wettable sulphur, particularly during the wet season, maintenance pruning of plants, irrigation with microsprinklers, induction of water stress by withholding irrigation and biotic and ... | 2000 | 11354617 |
| larval cryptothelea gloverii (lepidoptera: psychidae), an arthropod predator and herbivore on florida citrus. | the orange bagworm (obw), cryptothelea gloverii (packard) (lepidoptera: psychidae) was previously reported feeding on citrus fruit and foliage and preying upon the camphor scale pseudaonidia duplex (cockerell) (homoptera: coccidae). in this study using laboratory assays, obw preyed upon citrus rust mite, phyllocoptruta oleivora (ashmead) (acari: eriophyidae) and consumed eggs and adults of both p. oleivora and panonychus citri (mcgregor) (acari: tetranychidae), two important pest mites on florid ... | 2005 | 16082926 |
| beauveria bassiana pathogenicity to the citrus rust mite phyllocoptruta oleivora. | the pathogenicity of beauveria bassiana to one of the major pests of citrus crops, phyllocoptruta oleivora, was assessed by inoculating mites with different concentrations of conidia (1 x 10(6), 5 x 10(6), 1 x 10(7), 5 x 10(7) and 1 x 10(8)). treated mites were kept at controlled conditions (25 +/- 0.5 degrees c, 12 h photoperiod and 98% relative humidity) and mite survivorship was evaluated daily. mortality was found to increase in time and was dependent on the conidia concentration, with value ... | 2005 | 16180077 |
| development of iphiseiodes quadripilis (banks) (acari: phytoseiidae) on pollen or mite diets and predation on aculops pelekassi (keifer) (acari: eriophyidae) in the laboratory. | development and reproduction of iphiseiodes quadripilis (banks) were evaluated on single food diets of pollen (malephora crocea jacquin [ice plant] or quercus sp. [oak]), spider mites, [eutetranychus banksi (mcgregor) or panonychus citri (mcgregor) (acari: tetranychidae)], or the citrus rust mite phyllocoptruta oleivora (ashmead) (acari: eriophyidae). experiments were conducted in an environmental chamber at 28 degrees +/- 1 degrees c, 14:10 (l:d) daylength, and 45% rh. i. quadripilis completed ... | 2007 | 17349110 |
| a tale of three acaropathogenic fungi in israel: hirsutella, meira and acaromyces. | we review published and unpublished studies conducted in israel with six acaropathogenic fungi, assayed in order to control the citrus rust mite, phyllocoptruta oleivora (ashmead) (crm). hirsutella thompsonii fisher was introduced twice, killed 80-90% of the exposed mites, but due to its requirements for near-saturation humidities was deemed unsuitable for local outdoors conditions. hirsutella kirchneri (rostrup) minter et al. and hirsutella necatrix minter et al. were also introduced and assaye ... | 2008 | 18946714 |
| control of tylenchulus semipenetrans on citrus with aldicarb, oxamyl, and dbcp. | soil application of dbcp (l,2-dibromo-3-chloropropane) and foliar applications of oxamyl (methyl n',n'-dimethyl-n-[(methylcarbamoyl)oxy]-l-thiooxamimidate) were compared for control of tylenchulus semipenetrans in a grapefruit (citrus paradisi) orchard, dbcp reduced nematode populations and increased fruit growth rate, fruit size at harvest, and yield compared to the untreated controls in the 2 years following treatments. foliar applications of oxamyl reduced nematode populations and increased f ... | 1979 | 19300660 |
| binomial sampling to estimate rust mite (acari: eriophyidae) densities on orange fruit. | binomial sampling based on the proportion of samples infested was investigated for estimating mean densities of citrus rust mite, phyllocoptruta oleivora (ashmead), and aculops pelekassi (keifer) (acari: eriophyidae), on oranges, citrus sinensis (l.) osbeck. data for the investigation were obtained by counting the number of motile mites within 600 sample units (each unit a 1-cm2 surface area per fruit) across a 4-ha block of trees (32 blocks total): five areas per 4 ha, five trees per area, 12 f ... | 2007 | 17370833 |
| [life cycle of proprioseiopsis cannaensis (muma) (acari: phytoseiidae) on different types of food]. | several annual and perennial crops are severely attacked by mites from the family eriophyidae, tenuipalpidae and tetranychidae. a suitable alternative commonly used in several countries for the control of these pest mites involve the use of predatory mites in the family phytoseiidae. the phytoseiid fauna in the brazilian natural vegetation is very rich, but nothing is known about the biology of most of these species, as it is the case with proprioseiopsis cannaensis (muma). the objective of this ... | 2010 | 20676508 |
| toxicity of purified fungal toxin hirsutellin a to the citrus rust mite phyllocoptruta oleivora (ash.) | a toxic protein, hirsutellin a, isolated from culture filtrate during liquid fermentation of the fungal mycelia of hirsutella thompsonii, was tested using contact/residual and residual leaf bioassay methodologies at concentrations of 0, 10, 32, 56, and 100 &mgr;g/ml against adult citrus rust mite, phyllocoptruta oleivora. p. oleivora is the natural host of the parasitic fungus, h. thompsonii. mite mortality increased with an increase in hirsutellin a concentration, reaching virtually 100% at 100 ... | 1998 | 9784357 |
| intraguild interactions among specialised pollen feeders and generalist phytoseiids and their effect on citrus rust mite suppression. | antagonistic interactions among predators with shared prey are thought to hamper their ability to suppress herbivores. our aim was to quantify intraguild interactions in omnivorous predatory mite assemblages in the presence of pollen, and assess their effect on pest populations. we focused on the following naturally occurring phytoseiid species in israeli citrus orchards and their ability to suppress a key pest, the citrus rust mite (crm) phyllocoptruta oleivora (eriophyidae): the generalists am ... | 2016 | 26130195 |
| efficacy of indigenous predatory mites (acari: phytoseiidae) against the citrus rust mite phyllocoptruta oleivora (acari: eriophyidae): augmentation and conservation biological control in israeli citrus orchards. | the citrus rust mite (crm), phyllocoptruta oleivora (acari: eriophyidae) is a cosmopolitan key pest of citrus, inflicting severe economic damage if not controlled. in israel, crm damages all citrus cultivars. international regulation and increasing control failures of crm led growers to seek sustainable biological control solutions such as acarine biological control agents. laboratory studies conducted in israel have indicated that the indigenous predator species amblyseius swirskii, iphiseius d ... | 2014 | 24623155 |
| antagonistic effects of the endophytic fungus meira geulakonigii on the citrus rust mite phyllocoptruta oleivora. | the fungus meira geulakonigii has been shown to reduce populations of citrus rust mite (crm; phyllocoptruta oleivora) on citrus leaves and fruits, in both the field and laboratory. however, attempts to isolate the fungus from leaves and fruits have been unsuccessful. the aims of this study were therefore to determine whether m. geulakonigii is a citrus endophyte, and to assess possible mechanisms involved in its mite-antagonist activity. | 2007 | 18045441 |
| effects of reducing sample size on density estimates of citrus rust mite (acari: eriophyidae) on citrus fruit: simulated sampling. | the consequence of reducing sample size on the accuracy and precision of estimates of citrus rust mite, phyllocoptruta oleivora (ashmead), densities on oranges was investigated. the sample unit was a 1-cm2 surface area on fruit. sampling plans consisting of 360, 300, 200, 160, 80, 48, 36, or 20 samples per 4 ha were evaluated through computer simulations by using real count data from 32 data sets of 600 sample units per 4 ha. the original and reduced sampling plans were hierarchical with differe ... | 2005 | 16022338 |
| diel periodicity of emergence of adult citrus rust mites in central florida. | emergence of adult citrus rust mites, phyllocoptruta oleivora (ashmead) from the imagochrysalis occurred with a diel periodicity that peaked between mid morning and early afternoon. the pattern of emergence did not differ for mites reared from eggs held under different photoperiod regimes. the transition of nymphs to the imagochrysalis stage also showed a diel periodicity, occurring in the evening. the average duration of the imagochrysalis stage at 28 degrees c was 14-15 h. wetting by rain or d ... | 2002 | 12537291 |
| monitoring the susceptibility of citrus rust mite (acari: eriophyidae) populations to abamectin. | a citrus leaf disk bioassay was developed to monitor the susceptibility of citrus rust mite, phyllocoptruta oleivora (ashmead), populations to abamectin. disks from leaves of several citrus cultivars were equally suitable bioassay substrates, and there was no difference in mortality when mites were sprayed directly or exposed to dry abamectin residue. the concentration-response relationship was determined at intervals over 2 yr for a reference population of citrus rust mites that had been mainta ... | 1999 | 10504895 |