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金鋼钻是四川棉区的主要害虫之一。已經发现有鼎点金鋼钻(Earias cupreoviridis Wlk.)和翠纹金鋼钻(E.fabia stoll),以前一种占绝对优势。已发現鼎点金鋼钻的寄主植物有4科8属13种。除棉属而外,最重要的寄主为錦葵科中的冬莧菜及蜀葵。一年中鼎点金鋼钻可发生4—5个世代,以蛹茧越冬。完成一个世代的有效温积为375.3日度,发育起点温度为12.7℃。各代雌虫寿命9.2—15.2天,雄虫9.4—13.6天。平均每雌一生可产卵102—275粒。第1代幼虫主要在5月为害冬莧菜和蜀葵。第2代以后主要为害棉。田间发生的世代重迭,但从棉株上卵和幼虫的数量,可以明显地划出各个世代的高峯时期。雨天多、雨量大对田间虫卵量有显著的抑制作用。現蕾早的棉田和生长壮旺的棉田虫害较重。
Diamond is one of the major pests in Sichuan cotton area. Earias cupreoviridis Wlk. And E.fabia stoll have been found, the former of which has the absolute advantage. It has been found that the host plant in DingDing Golden Diamond has 4 families, 8 genera and 13 species. In addition to cotton genus, the most important host for the Malvaceae in winter amaranth and hollyhock. Ding point of the year can occur 4-5 generations of diamond drill, pupal cocoon wintering. The effective temperature for one generation was 375.3 days, and the onset of development was 12.7 ° C. Each generation of female life 9.2-15.2 days, male 9.4-13.6 days. An average of 102-275 eggs per female can be spawned. The first generation of larvae mainly in May damaged winter amaranth and hollyhock. The second generation after the main harm cotton. The generations in the field overlap, but the number of eggs and larvae on cotton can clearly set the peak of each generation. Rainy days and large rainfall on the amount of eggs in the field have a significant inhibitory effect. Early budding cotton fields and growing cotton heavier pests.