【摘要】 在温室条件下(16.0～46.2℃,自然光照)系统研究了B型烟粉虱为害甘蓝后对菜粉蝶幼虫生长发育、体质量和体长的影响。结果表明:烟粉虱为害甘蓝后菜粉蝶1龄幼虫的发育历期无显著差异,2～5龄幼虫的发育历期差异显著,分别比对照延长了36.0%、40.0%、57.9%、24.3%,整个幼虫期延长了31.0%,蛹期无显著差异;菜粉蝶2、3、4龄幼虫体质量比对照分别减轻了25.8%、34.0%和31.9%,1龄、5龄幼虫和蛹的质量无显著差异;菜粉蝶1～4龄幼虫体长比对照分别缩短了11.1%、11.5%、8.8%、11.9%,5龄幼虫体长无显著差异。表明烟粉虱侵染甘蓝能够对菜粉蝶幼期发育产生不利影响。更多还原

【Abstract】 To determine whether B biotype Bemisia tabaci(Gennadius)(Hemiptera:Aleyrodidae)feeding could induce plant defense against Pieris rapae Linnaeus(Lepidoptera:Pieridae),we carried out the effects of B.tabaci on biological parameters of P.rapae on cabbage(Brassica oleracea var.capitata L.),including larva growth and development,body weight and length,under greenhouse condition(16.0-46.2 ℃,natural light).The results indicated that mean durations of 1st instar and pupal stage were not significantly different when fed on whitefly infestation cabbage plants compared with the contrast,while the mean durations of P.rapae from 2nd to 5th instar were 36.0%,40.0%,57.9% and 24.3%,respectively longer than the contrast.The total larva duration prolonged 31.0%.There was no difference in pupal period.The body weights of P.rapae from 2nd to 4th instar were 25.8%,34.0% and 31.9%,respectively lower than the contrast.However,there were no differences in weights of 1st and 5th instar larval and pupal.The body lengths of of P.rapae from 1st to 4th instar were 11.1%,11.5%,8.8% and 11.9%,respectively shorter than the contrst.These results showed that B.tabaci infestations had negative effect on the early stage development of P.rapae.更多还原