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鼎点金钢钻(Earias cupreoviridis Walker)是棉花蕾铃期的重要害虫之一,以往在我国北部棉区为害不甚显著。近来它的发生有所增加,从邯郸的调查来看,1959年百株幼虫数最高达到114头。尤其后期虫口密度超过棉铃虫的数量,虫株率一般为10—40％,对秋桃为害很大,因此按其为害程度已渐为我地高产棉田的重要害虫。它除严重为害棉花外,尚在蜀葵、锦葵、苘麻及野生苍耳上找到过幼虫,但为数极少。
Eryas cupreoviridis Walker is one of the major pests in cotton bud bolling stage. In the past, the damage was not obvious in the northern cotton area of our country. Recently, its occurrence has increased. According to the Handan survey, the number of one hundred larvae reached a maximum of 114 in 1959. In particular, the population density of insect pests exceeded the number of bollworms at the later stage. The rate of insect pests generally ranged from 10% to 40%, which was very harmful to autumn peach. Therefore, the degree of pest damage has gradually become an important pest of high yielding cotton fields in our country. In addition to its serious damage to cotton, it is still found in hollyhocks, mallow, kenaf and wild cocklebur larvae, but very few.