四种食料植物对八字地老虎生长发育和繁殖的影响  

Influence of four food plants on development and fecundity of the spotted cutworm, Agrotis c-nigrum.

作　　者：席景会[1] 潘洪玉[1] 陈玉江[1] 郭永来[1] 

机构地区：[1]解放军军需大学农副业生产系,长春130062

出　　处：《昆虫知识》2002年第6期428-429,共2页Entomological Knowledge

基　　金：吉林省科委青年基金资助项目

摘　　要：研究了油菜、甜菜、白菜和莴苣 4种食料植物对八字地老虎Agrotisc nigrumLinnaeus幼虫发育历期、蛹期、蛹重、成虫寿命和产卵量的影响。幼虫取食油菜时发育历期最短 (1 5 4d) ,蛹最重 (2 0 3 5mg) ,产卵量最多 (3 89 5粒 ) ,甜菜次之。幼虫取食莴苣时发育历期最长 ,蛹最轻 (1 3 6 1mg) ,产卵量最少(1 44 7粒 )。Effects of four food plants on the developmental period,pupal weight and fecundity of the spotted cutworm were investigated.Larvae fed with Brassica campestris has a significantly shorter developmental period and heavier pupae than those fed with Brassica chinensis or Lactuca sativa. Fecundity of female adults from larvae reared on B.campestris was significantly greater than those reared on B.chinensis or L.sativa. However,the choice of food plant did not affect longevity of adults or the pupal period.The most suitable host is B.campestris.

关 键 词：食料植物 八字地老虎 生长 发育 繁殖 

分 类 号：S433.82[农业科学—农业昆虫与害虫防治]