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TOXICITY OF INSECTICIDES TO PARASITES OF THE SPOTTED TENTIFORM LEAFMINER (LEPIDOPTERA: GRACILLARIIDAE)

Published online by Cambridge University Press:  31 May 2012

E. A. C. Hagley ,
D. J. Pree ,
C. M. Simpson  and
A. Hikichi
E. A. C. Hagley
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
D. J. Pree
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
C. M. Simpson
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
A. Hikichi
Affiliation:
Horticultural Experiment Station, Ontario Ministry of Agriculture and Food, Simcoe, Ontario N3Y 4N5
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Abstract

Cypermethrin was more toxic to adults of the braconid parasite Apanteles ornigis Weed than fenvalerate, permethrin, azinphosmethyl, or methomyl. Endosulfan was the least toxic insecticide. Permethrin, however, was 19 × more toxic to the leafminer host Phyllonorycter blancardella (Fabr.) than to A. ornigis and could be most useful in an integrated pest management program. Several chalcids, Sympiesis spp., showed less sensitivity to azinphosmethyl than did A. ornigis.

Résumé

La cyperméthrine s’avère plus toxique pour les adultes du braconidé parasite Apanteles ornigis Weed que le fenvalérate, la perméthrine, l’azinphosmethyl ou le méthomyl. L’endosulfan est l’insecticide le moins toxique. Mais la perméthrine est 19 fois plus toxique pour la mineuse hôte Phyllonorycter blancardella (Fabr.) que pour A. ornigis et pourrait donc s’avérer des plus utile dans le cadre d’un programme de lutte antiparasitaire raisonnée. Plusieurs chalcididés, dont Sympiesis spp., sont moins sensibles à l’azinphosmethyl que A. ornigis.

Type
Articles
Information
The Canadian Entomologist , Volume 113 , Issue 10 , October 1981 , pp. 899 - 906
Copyright
Copyright © Entomological Society of Canada 1981

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References

Pree, D. J., Hagley, E. A. C., Simpson, C. M., and Hikichi, A.. 1980. Resistance of the spotted tentiform leafminer, Phyllonorycter blancardella (Lepidoptera: Gracillariidae), to organophosphorous insecticides in southern Ontario. Can. Ent. 112: 469–474.Google Scholar