Biological Activity and Control Effect of Ginkgolic Acids on Spodoptera exigua (Hübner)
JIN Dang-qin
Abstract：Biological activity and functional pattern of ginkgolic acids on Spodoptera exigua (Hübner) were systematically studied .Ginkgolic acids had many functional patterns against Spo-doptera exigua such as stomach poisoning ,contacting toxicity ,anti-feeding and systemic effect etc .,in which the anti-feeding effect was the most significant .The stomach poisoning and contac-ting toxicity experiment showed that the morality was low at 1 day after the treatment .The effects of stomach poisoning and the contacting toxicity were 28 .3% and 6 .7% ,respectively , when ginkgolic acids were diluted to 0 .1 g/L .But the effects increased at 6 days after the treat-ment ,with stomach poisoning and the contacting toxicity effects reaching 96 .7% and 93 .3% ,re-spectively .The anti-feeding effect appeared at 2 days after the experiment ,and with the concen-tration of ginkgolic acids increased ,the effect increased obviously .The anti-feeding effect was 97.12% at 4 days after the experiment when ginkgolic acids were diluted to 3 mg/L .The effect mechanism was isturbing the moulting and eclosion of insects .The control effects reached 95.2% ,85 .7% and 59 .3% at 7 days after spraying ginkgolic acids diluted at 100 ,200 ,400 times in the fields .It suggested that ginkgolic acids had higher biological activity and control efficacy against Spodoptera exigua .
Keywords：ginkgolic acidsSpodoptera exiguabiological activityfunctional patterncontrol effect
Publication Date：2013-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 79-82 )