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RESISTANCE OF THE SPOTTED TENTIFORM LEAFMINER, PHYLLONORYCTER BLANCARDELLA (LEPIDOPTERA: GRACILLARIIDAE), TO ORGANOPHOSPHOROUS INSECTICIDES IN SOUTHERN ONTARIO

Published online by Cambridge University Press:  31 May 2012

D. J. Pree ,
E. A. C. Hagley ,
C. M. Simpson  and
A. Hikichi
D. J. Pree
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
E. A. C. Hagley
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

Populations of the spotted tentiform leafminer, Phyllonorycter blancardella (Fabr.), from sprayed orchards across southern Ontario were found highly resistant (about 160-fold at LC50) to azinphosmethyl. Cross resistance to phosmet and partial cross resistance to diazinon were also indicated. All populations were highly susceptible to several synthetic pyrethroid insecticides. Resistant populations were controlled with pyrethroid insecticides applied when eggs were first found or by methomyl applied at about 50% hatch.

Type
Articles
Information
The Canadian Entomologist , Volume 112 , Issue 5 , 01 May 1980 , pp. 469 - 474
Copyright
Copyright © Entomological Society of Canada 1980

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References

Anonymous. 1971. Fruit Production Recommendations. Publ. Ont. Min. Agric. Fd 360. 53 pp.Google Scholar
Caesar, L., Ross, W. A., and Stirrett, G. M.. 1934. Insects of the season 1933 in Ontario. Can. Insect Pest Rev. 12: 36–47.Google Scholar