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为了解观赏植物千屈菜应用过程中的害虫危害情况,2008-2010年在武汉市12个调查点对千屈菜害虫进行了系统调查,发现危害千屈菜的害虫共有29种,分属5目18科。对2种危害严重的害虫褐背小萤叶甲和肾毒蛾提出了防治建议。对褐背小萤叶甲于产卵盛期,人工摘除有叶甲卵块的千屈菜叶片;成虫盛发期,人工捕捉叶甲成虫;叶甲幼虫发生严重时选用80%敌百虫可湿性粉剂1000~1500倍液喷雾防治。对肾毒蛾于产卵盛期,人工摘除有大量肾毒蛾卵块的千屈菜叶片;成虫盛发期进行灯光诱杀;幼虫3龄前采用生物农药25%灭幼脲悬浮剂2000~3000倍液喷雾防治。
In order to understand the pest damage of ornamental plant Lythraceae, systematic investigation on Lythrum pest was conducted at 12 investigation points in Wuhan from 2008 to 2010, and 29 species of pest insects were found, which belonged to 5 Head 18 subjects. Proposed control measures against two kinds of pests, Monochamus alternatus and Nematode moth. On the brown back of the small Diabrotica a spawning peak in the artificial removal of leaves with a leaf knot Lythrum leaves; adults Sheng period, the artificial capture of leaf adult; leaf larvae serious use of 80% selection of trichlorfon wettability Powder 1000 ~ 1500 times spray control. On the nectary moth in the spawning period, artificial removal of a large number of nematodes moth eggs of Lythrum leaf; adults during the light-induced trapping killing; larvae before the age of 3 with 25% of biopesticides benzoic acid suspension 2000 to 3000 times spray Prevention and treatment.