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Your Position :Home->Past Journals Catalog->2012年49 No.6

Effects of benzoylphenylurea insecticides on the development andreproduction of the Asian corn borer,Ostrinia furnacalis
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Key Words: Ostrinia furnacalis,benzoylphenylurea insecticides,development,reproduction
Abstract:        To comprehensively evaluate the sustainability of benzoylphenylurea insecticides ( BPUs) in controlling the  Asian corn borer,Ostrinia furnacalis ( Guenée ),the effects of chlorfluazuron,diflubenzuron,hexaflumuron and lufenuron,on the development and fecundity of O. furnacalis were tested by leaf immersion. The results show that survival  and larval duration were prolonged by 2. 4-4. 3 days,average female and male pupa weight decreased by 10. 3-13. 2 mg   and by 0-7. 7 mg,respectively,pupation rate and copulation success were reduced by 14. 1% -43. 3% and 5. 6% -25. 6% ,respectively,and eggs laid per female were reduced by 25. 5% -53. 3% . However,the hatching rate did not  significantly change after first instar larvae were treated with BPUs. The life span of adults fed with sugar solution   containing BPUs increased by 1. 3-4. 3 days but their oviposition and hatching rates decreased by 40. 3% -58. 2% and by   32. 9% -64. 3% ,respectively. The larval mortality of the F1 generation of surviving adults was 3. 5-8. 5-fold higher than   that of control moths fed on sugar water only. These results indicate that BPUs significantly inhibit larval development and   adult fecundity in O. furnacalis
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