摘要
本文报道了荒漠草地主要害虫阔颈萤叶甲(Pallasiola absinthii Pallas)的观察结果。此虫在甘肃张掖地区一年一代,以卵在土层0.5～1.0厘米的疏松土壤中越冬。幼虫3龄,从幼虫至成虫,主要取食驴驴蒿、珍珠、紫菀木的生长点,幼叶、嫩枝等。主要为害期在6月中旬,虫害率达80%以上。6月上旬采用乐果、敌敌畏等进行喷雾杀灭效果好。
The result of observation was reported by the paper as regarding a major destructive insect species occurring on desert rangeland in this prefecture by the name of broad—neckedpallasiola beetle(Panasiola Absinthii Pallas).This species usually occurs for only one generation a year in zhangye prefecture of western gansu,of which the egg surives the winter under the loose soil layers from 0.5to 1.0cm.the larva has three stages of metamorphosis.from larva to adult,it mainlyfeeds upon growing points,young leaves and tender shoots of such plant species as artemisia dalailamae,salsola passerina,asterothamnus fruticosus and so on.The principal time duration of harmfulness in a yesr is commonly occurring in mid-June,and the rate of damage reaches as high as more than 80%.In the early part of June,the application of rogor,DDVP andmany such insec ticides by spraying is efficacious accordingly.
出处
《草业科学》
CAS
CSCD
北大核心
1990年第4期49-50,共2页
Pratacultural Science
