摘要
2005、2006两年的调查发现,铜仁市引进的绿化植物——苏铁遭到曲纹紫灰蝶严重危害,被害株率达到34%,受害严重时虫口密度高达173头/株,为害高峰期为苏铁第一批新羽叶抽生时期的5月下旬至6月上旬,受害严重的植株当年抽生的羽叶全部枯死。防治曲纹紫灰蝶应采取压前控后的措施,关键时期在每年苏铁第一个抽芯盛期用药剂防治。
Cycas revoluta(Thunb.),which was introduced in Tongren city of Guizhou province as garden plant is being heavily jeopardized by Chilades pandava(H.)through investigation from 2005 to 2006.That endangered ratio was 34 percent,insect density was 173 in every plant,Imperiled fastigium occur in late May to late June when Cycas revoluta(Thunb.) expanse it’s first new leaves.The occurrence of Chilades pandava(H.)was inhibited is control prophase,and when Cycas revoluta(Thunb.) expanse it’s first new leaves is key time by medicament prevention.
出处
《铜仁职业技术学院学报》
2008年第2期6-7,48,共3页
Academic forum of Tongren Polytechnic College
关键词
曲纹紫灰蝶
苏铁
发生
防治
Chilades pandava(H.)
Cycas revoluta(Thunb.)
occurrence
prevent and cure
