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- W2377737794 abstract "Objective The study investigated to select suitable pollution-free insecticides for apple tree and coordinate the relation of chemical control and biological control.MethodToxic effect of insecticides on Coccinella septempunctata was studied by two design methods of direct and indirect effect with 8 usual insecticides in apple production as materials.Result In direct effect experiment,4.5 % high active cypermethrin emulsifiable solution had strongest toxic effect on Coccinella septempunctata larva with the mortality of 93.33 %;20 % haoniandong emulsifiable solution had strongest toxic effect on Coccinella septempunctata adults with the mortality of 56.67 %.In the indirect feeding experiment,20 % haoniandong emulsifiable solution had strongest toxic effect with the larva mortality of 90 % and the adult mortality of 87 %.Conclusion 25 % arketai water dispering agent,70 % imiler water dispering agent,4.5 % high active cypermethrin emulsifiable solution and 20 % haoniandong emulsifiable solution had strongest toxic effect on Coccinella septempunctata.10 % liuyangmycin and 1.1 % matrine powder had weakest toxic effect,which should be avoided in production.All the insecticides had stronger toxic effect on larva than on adults,and most had greater stomach poisoning than contact poisoning." @default.
- W2377737794 created "2016-06-24" @default.
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- W2377737794 date "2007-01-01" @default.
- W2377737794 modified "2023-09-26" @default.
- W2377737794 title "Study on Toxic Effect of Insecticides on Coccinella Septempunctata in Apple Orchard" @default.
- W2377737794 hasPublicationYear "2007" @default.
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