【摘要】 通过不同醇化时间与等级的烟叶饲养烟草粉螟试验研究 ,结果表明 :烟草粉螟喜欢取食入库醇化时间为 1年的烟叶 ,低龄幼虫喜欢取食品质差的下部烟叶 ,高龄幼虫喜欢取食品质好的中上部烟叶。取食醇化时间为 1年烟叶的幼虫发育速率快于取食醇化时间为 2～ 3年烟叶的幼虫 ;醇化时间相同的不同等级烟叶 ,取食中桔二烟叶 (98C2 F)的幼虫发育速率快于下桔二烟叶 (98X2 F)和上桔二烟叶 (98B2 F)。更多还原

【Abstract】 Feeding Aphestia elutella (Hubner) with tobacco leaves alcoholized for different length of time or of different grades showed that the pest preferred tobacco leaves alcoholized for 1 year; younger instar larvae preferred the tobacco leaves kept at the lower layer, which were of inferior quality; and older instar larvae preferred the tobacco leaves at the middle or upper level, which were of superior quality, Larvae feeding on tobacco 1 ves alcoholized for 1 year developed faster than those feeding on tobacco leaves alcoholized for 2 or 3 years. With the same alcoholization duration, larvae feeding on 98C 2F developed faster than those feeding on 98X 2F or 98B 2F.更多还原