Cabbage root fly control using non-organophosphorus insecticides.
The need to find non-organophosphorus insecticides to control the cabbage root fly has never been so urgent. Of the six non-OP insecticides tested, fipronil was the most effective but spinosad, diflubenzuron and cyromazine also showed considerable promise. As expected, the transplant drenches (34 mg active ingredient (a.i./plant) were more effective than the module drenches (5 mg a.i./plant), which in turn were more effective than the film-coated seed treatments (0.001 mg a.i./plant), simply because of the different amounts of insecticide applied per plant. One remaining major problem is that, even if effective non-OP insecticides can be found, the manufacturers may still not support their insecticides being applied to minor crops such as field vegetables.
Jukes
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Department of Entomological Sciences, Horticulture Research International Wellesbourne, Warwick CV35 9EF, UK.
Collier
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RH
Finch
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D000818:Animals; D001937:Brassica / Q000469:parasitology*; D004175:Diptera; D004305:Dose-Response Relationship, Drug; D007300:Insect Control / Q000379:methods*; D007306:Insecticides; D010573:Pesticide Residues; D011897:Random Allocation
D007306:Insecticides; D010573:Pesticide Residues