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菱角(Trapa natans L.)、莼荣(Brasenia schreberi Gmel.)是苏、浙、鲁、皖、湘、赣等省河网地区的重要水生经济作物,也是出口农产品。据调查,近年菱角萤叶甲(Galerucella birmanica.Jacoby)为害严重,如1981年江苏高邮县汤庄公社受害面积达72%,减产60%以上,杭州毛家埠、苏州东山等地,因该虫为害,莼菜产量每况愈下。菱角萤叶甲的生物学习性侯子艾等曾有过报道,但在种群动态、生态学特性及综合防治等方面国内外研究颇少,为了综合开发水面资源,发展水生经济作物,我们于1981—1983年对菱角萤叶甲进行了研究。
Trapa natans L. and Brasenia schreberi Gmel. Are important aquatic cash crops in the river networks of Jiangsu, Zhejiang, Shandong, Anhui, Hunan and Jiangxi provinces, and also export agricultural products. According to the survey, Galerucella birmanica.Jacoby has been severely damaged in recent years. For example, in 1981, the area affected by Tangku Commune in Gaoyou County in Jiangsu Province was 72% and the output was reduced by more than 60%. Hangzhou Maojiabu and Dongshan, Suzhou, Harm, Brasenia schreberi production down deteriorating. However, there are few researches on population dynamics, ecological characteristics and integrated control. In order to comprehensively develop water resources and develop aquatic economic crops, we in 1981 - 1983 Trilobite Diabrotica A study.