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作 者:欧克芳
出 处:《农业科技与信息(现代园林)》2015年第7期518-521,共4页Modern Landscape Architecture
摘 要:为了解观赏植物千屈莱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 damages caused by the pests on Ioosestrife, a systematic investigation was performed at 12 representative sites in Wuhan from 2008 to 2010. Twenty-nine species of pests were identified. The insect pests were classified into 5 orders and 18 families. The majority of insects observed are two species Galerucella grisescens and Cifuna locuples, for which the control measures were discussed in this paper. The damages caused by these two pests can be reduced by removing the leaves with the egg mass at the reproductive peaks. At the peaks of adult emergence,the pest populations can be controlled by capturing the adultsby hands and lights for G. grisescens and C. Locuples respectively. In addition, chemicals can be used to control the emergence of lavae. For G. grisescens, spraying can be applied with the chemical Dipterex (80%, 1000-1500 × diluted) at the peak of larva emergence. ForC. Locuples, it is useful to spray chlorbenzuron (25%, 2000-3000 × diluted) for thethird stage of larvae.
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