| functional response of euseius finlandicus and amblyseius andersoni to panonychus ulmi on apple and peach leaves in the laboratory. | the functional response of adult females of the predatory mites euseius (amblyseius) finlandicus and amblyseius andersoni to larvae and adult females of the fruit tree red spider mite panonychus ulmi was determined on apple and peach leaf disks in the laboratory at 25 degrees c and 16:8 (l:d). for adult females of p. ulmi the predation efficiency of e. finlandicus was higher on peach than on apple, whereas that of a. andersoni was higher on apple than on peach. efficiency of predation on larvae ... | 2000 | 11110236 |
| cannibalism and intraguild predation among phytoseiid mites: are aggressiveness and prey preference related to diet specialization? | we tested whether specialist and generalist phytoseiid mites differ in aggressiveness and prey choice in cannibalism and intraguild predation. specialists tested were galendromus occidentalis, neoseiulus longispinosus, phytoseiulus persimilis, and p. macropilis; generalists tested were amblyseius andersoni, euseius finlandicus, e. hibisci, kampimodromus aberrans, neoseiulus barkeri, n. californicus, n. cucumeris, nm fallacis, and typhlodromus pyri. aggressiveness of cannibalistic females against ... | 2000 | 11227828 |
| species and strain identification of the predatory mite euseius finlandicus by rapd-pcr and its sequences. | the variation within and between finnish euseius finlandicus populations was investigated by rapd-pcr and its sequence analyses. resin dna extraction was found to be a suitable method for samples of single mites used in pcr. the banding patterns from 24 rapd primers and 10 primer pairs were very similar and reproducible in all specimens of the predatory mite studied. however, the e. finlandicus k-strain could be distinguished from organophosphate-resistant predatory mites (r-strain), since almos ... | 2000 | 11345320 |
| rapid cold hardening in the predatory mite euseius (amblyseius) finlandicus (acari: phytoseiidae). | a rapid cold hardening response was studied in diapause and non-diapause females of the predatory mite euseius finlandicus. when laboratory reared diapause and non-diapause females were transferred and maintained from the rearing temperature of 20 degrees c for 2 h to -11.5 degrees c and -10 degrees c, 10 to 20% survived respectively. however, conditioning of diapause females for 4 h at a range of temperatures from 0 to 10 degrees c before their exposure for 2 h to -11.5 degrees c, increased sur ... | 2001 | 11356416 |
| development, survival and reproduction of euseius finlandicus (acari: phytoseiidae) at different constant temperatures. | development, survival and reproduction of euseius finlandicus oudemans were studied at seven constant temperatures (15, 20, 25, 27, 30, 32 and 34 degrees c) in the laboratory. within the temperature range tested, developmental period from egg to adult varied from 148 to 360.5 h and 133.7 to 336.5 h for females and males, respectively. the lower thermal threshold for immature development for females and males was 8.9 and 6.4 degrees c, respectively. survival during immature development exceeded 9 ... | 2001 | 11697783 |
| 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 |
| diapause induction and termination in the predatory mite euseius finlandicus in peach orchards in northern greece. | the course of diapause induction as well as of diapause termination in females of the predatory mite euseius (amblyseius) finlandicus oudemans (acari: phytoseiidae) in northern greece was determined by transferring females during winter and early spring from peach trees to a short day (ld 8:16) or a long day (ld 16:8) photoperiod both at 20 degrees c. the first diapause females were found in mid september and by the first week of october all the females were in diapause. the mean number of days ... | 2001 | 12465847 |
| overwintering sites and winter mortality of euseius finlandicus (acari: phytoseiidae) in a peach orchard in northern greece. | in peach orchards of northern greece euseius finlandicus oudemans overwinters in various sites on the trees, usually in groups of 5-15 females. overwintering females were mostly found in bark crevices near the hibernation cocoons of the peach moth adoxophyes orana (fischer von rosslerstamm), and also in small crevices of the bark and in pedicels left after fruit harvesting. empty scales of dead diaspidids and dead coccids, cocoons of lacewings and mummies of parasitized aphids sporadically found ... | 2002 | 12475073 |
| 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 |
| 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 |
| typhlodromus pyri and euseius finlandicus (acari: phytoseiidae) as potential biocontrol agents against spider mites (acari: tetranychidae) inhabiting willows: laboratory studies on predator development and reproduction on four diets. | typhlodromus pyri scheuten and euseius finlandicus (oudemans) are important predators of phytophagous mites. the present laboratory study aimed to determine whether both species can develop and reach maturity feeding on spider mites occurring on willows, i.e., schizotetranychus schizopus (zacher), schizotetranychus garmani pritchard & baker, and tetranychus urticae koch, and on brassica napus l. pollen. the predators' development, reproduction and demographic parameters were significantly affect ... | 2016 | 26530991 |
| phytoseiidae in european grape (vitis vinifera l.): bio-ecological aspects and keys to species (acari: mesostigmata). | the family phytoseiidae includes many species of predators involved in the control of mite pests of crops all over the world. in european vineyards, these natural enemies play a key role in plant protection as their presence usually makes the use of acaricides unnecessary. each species has its specific biological features. it is thus of great interest to identify the species reported on grape, vitis vinifera. the present paper, based on a world database of the family phytoseiidae and on an analy ... | 2013 | 26120664 |
| pest management systems affect composition but not abundance of phytoseiid mites (acari: phytoseiidae) in apple orchards. | we examined the faunal composition and abundance of phytoseiid mites (acari: phytoseiidae) in apple orchards under different pest management systems in hungary. a total of 30 apple orchards were surveyed, including abandoned and organic orchards and orchards where integrated pest management (ipm) or broad spectrum insecticides (conventional pest management) were applied. a total of 18 phytoseiid species were found in the canopy of apple trees. species richness was greatest in the organic orchard ... | 2014 | 24248910 |
| egg hatching response to a range of ultraviolet-b (uv-b) radiation doses for four predatory mites and the herbivorous spider mite tetranychus urticae. | egg hatchability of four predatory mites-phytoseiulus persimilis athias-henriot, iphiseius [amblyseius] degenerans berlese, amblyseius swirskii athias-henriot, and euseius finlandicus oudemans (acari: phytoseiidae)-and the spider mite tetranychus urticae koch (acari: tetranychidae) was determined under various uv-b doses either in constant darkness (dd) or with simultaneous irradiation using white light. under uv-b irradiation and dd or simultaneous irradiation with white light, the predator's e ... | 2017 | 27988819 |