摘要
在实验室和野外条件下,对柳圆叶甲Plagiodera versicolora(Laicharting)的生物学特性进行了系统观察。在野外,越冬成虫于3月下旬至5月中旬陆续出土繁殖,一年能繁殖6～12代。该虫由于成虫产卵持续时间长,完成一个世代的时间短,因此世代重叠现象非常明显。11月上旬后羽化的成虫取食一段时间后蛰伏越冬。成虫产卵有一定的周期性,一般10d为一个周期,每天产卵最少1粒,最多65粒。寄主树叶老嫩程度和气候条件对各世代成虫的产卵具有显著的影响。
Life history of Plagiodera versicolora（Laicharting） was studied in laboratory and field.In the filed,the over-winter adults began to emerge from the soil gradually from late March to middle May.This species had 6 to 12 generations a year in Jiangxi Province.Adults began to enter diapause from late October to middle November.P.versicolora has a cyclic oviposition period,each of which lasted for about 10 days.Female adult could lay at lest 1 and most 65 eggs everyday.Its oviposition was influenced significantly with the quality of host plant and temperature respectively.
出处
《江西植保》
2010年第4期148-151,共4页
Jiangxi Plant Protection
基金
江西省教育规划课题07YB336
07YB337
国家自然科学基金30960223
关键词
柳圆叶甲
生活史
产卵量
滞育
Plagiodera versicolora
life cycle
egg production
diapause
