ISHS Acta Horticulturae 347: II International Symposium on Integrated Fruit Production
BIOLOGICAL CONTROL OF PHYTOPHAGOUS MITES IN UK APPLE ORCHARDS |
| Author: | M.G. Solomon |
| Abstract:
Panonychus ulmi and Aculus schlechtendali can both be controlled in UK apple orchards by exploiting the action of the predatory mite Typhlodromus pyri. Organophosphate-resistant strains of T. pyri are widespread in apple growing regions, and can be artificially introduced where necessary. An OP-resistant strain of T. pyri has been subjected to synthetic pyrethroid selection pressure leading to a four-fold increase in resistance. The choice of pesticides for use in IPM/IFP programmes is discussed. | |
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