鼎点金刚钻Earias cupreoviridis(Walker)是江苏沿海棉区主要害虫,一年发生4—5代,以蛹在棉秸、枯铃、残枝落叶等处越冬。东台每年都有发生,大发生年份有1966年、1967年、1971年和1981年。因早春寄主复杂,食料各异,影响发育进度,导致以后各世代重叠。由于幼虫钻蛀蕾铃,防治稍有疏忽,便可造成减产。为提供测报资料,准确地预测虫情,及时开展综合防治,我们今年对金刚钻部分生物学特性作了初步观察,现将观察结果报道于后。 一、成虫产卵习性 成虫一般在夜间羽化、取食、交配、产卵。 1.产卵前期及产卵量 1981年7月上旬于 Eryas cupreoviridis (Walker) is a major insect pest in the coastal cotton area of ​​Jiangsu Province. It occurs 4-5 generations a year, and pupae winters over cotton stalks, bell bells and stumps. Dongtai occur every year, occurred in 1966, 1967, 1971 and 1981. Host due to the complex early spring, different food, affecting the progress of development, leading to overlapping generations later. As larvae mothballs bolls, prevention and control a little negligence, can result in reduced production. In order to provide the data of the survey and forecast the insects accurately and carry out the comprehensive prevention and treatment in time, this year we made a preliminary observation on the biological characteristics of the diamond and we will report the results later. First, the adult spawning habits Adults generally feathering at night, feeding, mating, spawning. 1. Pre-spawning and fecundity in early July 1981 in