Toxicity of Apple Orchard Pesticides to
Agistemus fleschneri12

Nelson, E. E.; Croft, B. A.; Howitt, Angus J.; Jones, Alan L.

doi:10.1093/ee/2.2.219

Cited by 15 publications

(7 citation statements)

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“…Childers et al (2001) reported high susceptibility (>70% mortality) of Agistemus industani Gonzalez (Stigmaeidae) to a variety of insecticides and acaricides (abamectin, pyridaben, chlorfenapyr, propargite), and to the benzimidazolylcarbamate fungicide fenbutatin, but moderate susceptibility (30-70% mortality) to the fungicides benomyl (benzimidazole fungicide), fenbuconazole (conazole fungicide) and ferbam (dithiocarbamate fungicide). In other studies, mancozeb-both in combination with an inseciticide and alone-was found to be highly toxic to diVerent Stigmaeidae species (Nelson et al 1973;Hagley and Biggs 1989). In our study, only the Stigmaeidae showed no concentration-dependent mortality, and very wide ranges of LC values (95% CI).…”

Section: Discussionsupporting

confidence: 50%

“…To narrow this range additional experiments are needed, with more mites. Besides, the results of research carried by Nelson et al (1973) and by Hagley and Biggs (1989), who focused on particular species, cannot be simply compared to our results and extrapolated to the higher taxa Although comparison of results of diVerent studies is hampered by diVerences in e.g. climatic conditions, Stigmaeidae seem to be more tolerant to fungicides than to insecticides.…”

Section: Discussionmentioning

confidence: 73%

“…Sometimes mancozeb can also be used as an acaricide, but then its concentration must be higher than when used against fungi (cf. Nelson et al 1973;Hagley and Biggs 1989;Kongchuensin and Takafuji 2006). Mancozeb is considered as a practically non-toxic chemical (toxicity class IV; Extoxnet).…”

Section: Introductionmentioning

confidence: 99%

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Non-omnia moriantur—toxicity of mancozeb on dead wood microarthropod fauna

et al. 2007

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The effect of Dithane M-45 (dithiocarbamate fungicide; active substance: mancozeb) was studied on microarthropod fauna inhabiting dead wood. Although the exposure was almost never 100% lethal for the majority of observed taxa, almost all (Mesostigmata, Oribatida, some Uropodina, Actinedida, Collembola and Diplopoda) showed very high correlation between concentration of the fungicide and mortality (r > 0.86). Only Stigmaeidae showed low correlation (r = 0.293). For the majority of taxa LC(50 )values were close to the concentrations used during agrochemical activities in woods. Only Trachytes aegrota showed full susceptibility to the fungicide within the range of recommended field concentrations used in forestry (characterised by the low LC(95 )value). Tolerance of mesostigmatid and oribatid mites was found to differ between juveniles and adults, but not consistently. Related Uropodina species varied in susceptibility to the fungicide.

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Section: Discussionsupporting

confidence: 50%

Section: Discussionmentioning

confidence: 73%

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Non-omnia moriantur—toxicity of mancozeb on dead wood microarthropod fauna

et al. 2007

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“…Pyrethroids were extremely toxic to A. fallacis and other Phytoseiidae in laboratory tests (Watve and Lienk 1975;Lienk et al 1976;Hoy et al 1979;Hislop and Prokopy 1981;Streibert 1981;Hassan et al 1983;Bostanian et al 1985;Frisch 1988). Although pyrethroids were not included in published tests of pesticides on stigmaeids (Nelson et al 1973;Childers and Enns 1975b), permethrin was rated as toxic rather than highly toxic (Hagley et al 1978) or as extremely toxic (Hislop and Prokopy 1981;Hull and Starner 1983) to field populations of Z. mali. Although pyrethroids were not included in published tests of pesticides on stigmaeids (Nelson et al 1973;Childers and Enns 1975b), permethrin was rated as toxic rather than highly toxic (Hagley et al 1978) or as extremely toxic (Hislop and Prokopy 1981;Hull and Starner 1983) to field populations of Z. mali.…”

Section: + + + +mentioning

confidence: 99%

TOXICITY OF PERMETHRIN, AZINPHOSMETHYL, AND METHOMYL TO PHOLETESOR ORNIGIS (WEED) AND PHOLETESOR PEDIAS NIXON (HYMENOPTERA: BRACONIDAE), PARASITES OF THE SPOTTED TENTIFORM LEAFMINER, PHYLLONORYCTER BLANCARDELLA (FABR.) (LEPIDOPTERA: GRACILLARIIDAE)

1991

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Can. Ent. 123: 1163-1 174 (1991) Leaves were collected between 28 July and 10 September from 36 (1986) and 85 (1987) apple orchards, and examined for mites. Twelve species of Phytoseiidae were found: Amblyseius fallacis (Garman), Typhlodromus longipilus Nesbitt, A. andersoni (Chant), T. caudiglans Schuster, T. pyri Scheuten, T. pomi (Parrott), Phytoseius macropilis (Banks), T. herbertae Chant, A. driggeri Specht, A. jinlandicus (Oudemans), T. conspicuus (Garman), and A. pusillus (Kennett), in order of frequency. The stigmaeid mites Zetzellia mali (Ewing) and Agistemus jleschneri Summers, a complex of erythraeid mites of Balaustium spp. and Hauptmannia spp., and tydeid mites, primarily Tydeus spp., were other common predatory species. Species of Tetranychidae, Bdellidae, Eriophyidae, Winterschmidtiidae, and Tarsonemidae, also were collected.Predatory mites were present each season in all abandoned orchards and in 43-74% of the commercial orchards. Their abundance in commercial orchards was compared with the use of insecticides applied only for control of the spotted tentiform leafminer, Phyllonotycter blancardella (Fabr.). Fewer ( P < 0.05) phytoseiids occurred where pyrethroids were employed than in sites without pyrethroids, but differences were not found for similar use of the carbamoyl oxime, methomyl. Fewer ( P < 0.05) stigmaeids occurred in sites treated with methomyl than in sites without methomyl, whereas such differences were not found for pyrethroid use. Thistlewood, H.M.A. 1991. Inventaire des acariens prkdateurs dans des pommeraies d'ontario soumises a divers traitements de pesticides. Can. Enr. 123: 1163-1 174. Resume Des feuilles de pommiers ont Ct C prClevCes entre le 28 juillet et le 10 septembre dans 36 vergers en 1986 et 85 vergers en 1987, et les acariens y ont Ct C dtnombrks. Douze especes de Phytoseiidae ont Ct C identifikes: ce sont, par ordre de frkquence, Amblyseius fallacis (Garman), Typhlodromus longipilus Nesbitt, A. andersoni (Chant), T. caudiglans Schuster, T. pyri Scheuten, T. pomi (Parrott), Phytoseius macropilis (Banks), T. herbertae Chant. A. driggeri Specht, A. jinlandicus (Oudemans), T. conspicuus (Garman), et A. pusillus (Kennett). Des Stigmaeidae, Zetzellia mali (Ewing) et Agistemus jleschneri Summers, un complexe d'Erythraeidae des genres Balaustium et Hauptmannia, et des Tydeidae, surtout du genre Tydeus, comptaient aussi parmi les especes prkdatrices communes. Des Tetranychidae, des Bdellidae, des Eriophyidae, des Winterschmidtiidae et des Tarsonemidae ont Cgalement Ct C identifiCs.Des acariens prkdateurs ont Ct C inventoriCs a chaque saison dans tous les vergers abandonnCs et dans 43-74% des vergers commerciaux. Leur abondance dans les vergers commerciaux a Ct C CvaluCe en fonction des insecticides utilisCs exclusivement dans le but de contrbler la mineuse Phyllonorycter blancardella (Fabr.). I1 y avait moins de phytoseiides ( P < 0,05) 1% oii des pyrtthrojdes avaient Ct C utilists que dans les vergers non trait&, mais il n'y avait pas de diffkrences entre les vergers ...

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“…Stigmaeid mites are found on number of field, forest and cash crops that can predate on a wide variety of harmful insects (soft bodied and slow moving) and mites (Nelson et al, 1973). The most important predators of family Stigmaeidae include genera Agistemus Summers and Zet-zellia Oudemans against spider mites (Santos and Laing, 1985;Croft, 1994).…”

Section: Introductionmentioning

confidence: 99%

TEMPERATURE DEPENDENT LIFE PARAMETERS AND PREDATORY POTENTIAL OF A STIGMAEID MITE, Agistemus buntex, CHAUDHRI AGAINST TWO SPOTTED SPIDER MITE, Tetranychus urticae, DUFOUR

Khan¹

2017

PAKJAS

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(31° 26' 0" N; 73° 6' 0 E). T. urticae was transferred to water soaked cotton arena whereas A. buntex to leaf arena as per (Chaudhri and Akbar, 1985). The arenas were kept in the growth chamber at 25±2°C, 70±5% RH and under 16:8 (L:D) conditions for the purpose to get enough numbers of T. Pak. J. Agri. Sci., Vol. 54(1), 83-89; 2017 ISSN (Print) ISSN (Online) Studies were conducted to evaluate the life history parameters and predatory potential of a stigmaeid mite Agistemus buntex Chaudhri against Tetranychus urticae Dufour at three constant temperatures viz., 20, 25 and 30°C. At 25°C, egg, larvae, protonymph, deutonymph and egg to adult stages were completed in 7.36, 3.00 2.44, 2.34 and 15.14 days, respectively for male, and 8. 48, 3.98, 3.69, 3.52 and 19.67 days, respectively for the female. The development time was longer at other two temperatures. Daily fecundity, total fecundity and sex ratio was much greater at 25°C compared to 20 and 30°C. The lower development threshold was found to be 6.65 and 8.35°C for A. buntex female and male, respectively. Degree day requirements (DD) for A. buntex were 346.02 DD for female and 250 DD for the male. The intrinsic rate of natural increase (rm) of A. buntex was recorded as 0.11 at 25°C. Finite rate of increase (λ) values for A. buntex were found to be 1.07, 1.12 and 1.11 at 20, 25 and 30°C respectively. From obtained results, it can be concluded that A. buntex can become a strong candidate for biological control of T. urticae in Pakistan and elsewhere along-with other control strategies. The findings will serve as baseline information to better understand the biology of the pest, which can be utilized in an effective management program.

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Toxicity of Apple Orchard Pesticides to Agistemus fleschneri12

Cited by 15 publications

References 0 publications

Non-omnia moriantur—toxicity of mancozeb on dead wood microarthropod fauna

Non-omnia moriantur—toxicity of mancozeb on dead wood microarthropod fauna

TOXICITY OF PERMETHRIN, AZINPHOSMETHYL, AND METHOMYL TO PHOLETESOR ORNIGIS (WEED) AND PHOLETESOR PEDIAS NIXON (HYMENOPTERA: BRACONIDAE), PARASITES OF THE SPOTTED TENTIFORM LEAFMINER, PHYLLONORYCTER BLANCARDELLA (FABR.) (LEPIDOPTERA: GRACILLARIIDAE)

TEMPERATURE DEPENDENT LIFE PARAMETERS AND PREDATORY POTENTIAL OF A STIGMAEID MITE, Agistemus buntex, CHAUDHRI AGAINST TWO SPOTTED SPIDER MITE, Tetranychus urticae, DUFOUR

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