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7～9月是我地斜纹夜蛾盛发期。2000年在鄞县邱一村(县农业示范园区)采用棚栽外遮阳降温方式的番茄地调查病虫害时,发现覆盖遮阳网与不覆盖遮阳网番茄地,斜纹夜蛾发生与危害有着明显差异。为此对该虫的二、三代进行了系统的调查。现将结果简报如下。
July to September is my Spodoptera litura Sheng period. In 2000, when a pest and disease was surveyed in a tomato field in Qiuyi Village (County Agricultural Demonstration Zone) in Yinxian County, the occurrence and damage of Spodoptera litura were found to be significantly different when covering the shade net with the tomato without covering the shading net. To this end of the worm two or three generations of a systematic investigation. The result is now as follows.