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氯虫苯甲酰胺对小菜蛾生长发育的亚致死效应研究 被引量:4

Sublethal effect of chlorantraniliprole on the growth and development of Plutella xylastella(L.)
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摘要 采用叶片药膜法,确定氯虫苯甲酰胺对小菜蛾三龄幼虫的亚致死剂量(LC25和LC50),研究其对小菜蛾Plutellaxylastella(L.)生长发育的亚致死效应。结果表明:与空白对照相比,亚致死浓度的氯虫苯甲酰胺处理后,小菜蛾幼虫体重显著降低,蛹期与产卵历期均显著延长,单雌产卵量显著增加,幼虫生长发育历期、羽化率显著降低,孵化率略有下降。在亚致死剂量下,氯虫苯甲酰胺能够提高小菜蛾种群的发育速率和繁殖力,这对协调田间的化学防治和生物防治、制定小菜蛾综合防治策略的有积极意义。 The effect of sublethal doses of chlorantraniliprole on growth and development of Plutella xylastella L.were investigated with the leaf-dip bioassays,which were used to estimate LC25 and LC50 in advance.Compared with the control,oviposition duration and eggs of single female adult of diamondback moth(DBM) increased obviously,hatching rate decreased a little,weight of DBM larvae went up significantly,developmental duration shortened obviously,emergence rate of DBM pupae went down significantly.Therefore,the development rate and reproductive capacity were enhanced by sublethal doses of cholrantraniliprole,which was extremely important to adjust the period of chemical control and biological control in the field,and make effective IPM strategy for controlling DBM.
出处 《广东农业科学》 CAS CSCD 北大核心 2012年第17期78-80,共3页 Guangdong Agricultural Sciences
基金 国家公益性行业(农业)科研专项(201103021) 广东省自然科学基金(10451064001006248 10151064001000025) 广东省教育部产学研项目(2010A090200029-4) 国家科技支撑计划项目(2012BAD19B0)
关键词 小菜蛾 氯虫苯甲酰胺 亚致死剂量 生物学特性 Plutella xylastella(L.) chlorantraniliprole sublethal doses biological performance
作者简介 尹飞(1984-),女,硕士,研究实习员,E—mail:feier0808@163.com 通讯作者:陈焕瑜(1961-),女,研究员,E—mail:chenhy@gdppri.com
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