摘要
利用性诱剂诱杀江苏沿海地区三、四代棉铃虫的试验、示范结果表明 ,每 0 .1 3 4公顷棉田放置 1个诱芯盆的诱蛾效果较好且经济 ,与相同面积棉田内插放 40个树枝把的诱蛾效应比较 ,前者所诱雄蛾量增加 3 6.3 1 %～ 45 .5 9% ,雌蛾交配率下降 3 5 .64 %～ 44 .75 % ,田间落卵量降低 9.90 %～ 1 5 .0 5 % ,幼虫量减少 7.69%～ 1 2 .3 6% ,蕾铃被害量下降 4.49%。室内的性比试验证实 。
The experiments and demonstrations of trapping H.armigera in three and four generations by sex attractant were conducted in coastal area of Jiangsu province,the results indicated that putting one sex attractant-basin per 0.134hm 2 had better and economical trapping effect,in comparison with the rrapping effect of putting forty bunched branches per 0.134hm 2,the former increased trapped male moths by 36.31%～45.59%,decreased the mating rate of female moths by 35.64%～44.75%,egg number in cotton field by 9.90%～15.05%,larval number by 7.69%～12.36% and injuried cotton buds and bolls by 4.49%.Laboratory sex ratio experiment showed that the oviposition number of female H.armigera was negative correlative with the ratio of female moths in the colony of this insect.
出处
《江西农业学报》
2000年第2期29-34,共6页
Acta Agriculturae Jiangxi
关键词
性诱剂
主害代棉铃虫
诱杀效应
Sex attractant
Main injurious generation
H.armigera
Trapping effect
