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Toxicity of some organophosphorus insecticides to the crawlers of San Jose scale Quadraspidiotus perniciosus Comst


Toxicity of some organophosphorus insecticides to the crawlers of San Jose scale Quadraspidiotus perniciosus Comst



Pesticides 14(2): 10-12



Quadraspidiotus perniciosus (Comst.) is one of the most severe insect pests of apple in Himachal Pradesh (India) and is not sufficiently controlled even by winter soil sprays or by its parasite, Encarsia perniciosi (Tower) (Prospaltella perniciosi). Deposits of 5 organophosphorus insecticides under consideration for use against crawlers of the summer generations in the field were tested in the laboratory.

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Related references

Monitoring of San Jose scale (Quadraspidiotus perniciosus Comst.) by pheromone traps and timing of control on crawlers. Bulletin OILB/SROP 28(7): 183-187, 2005

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