瘤缘蝽生物学特性及防治研究

本文较详细地报道了瘤缘蝽的生物学特性及防治方法。该虫在豫南一年发生5～6代,以成虫在土缝、砖缝、石块及枯枝落叶下越冬。每年4～10月是为害期,7～8月是为害高峰期,常以几头、甚至上百头成、若虫群聚在辣椒上刺吸汁液,致使枝叶萎黄、幼果脱落、产量下降,也可为害蚕豆、土豆和茄子。成、若虫均喜荫畏光,有群聚性、假死性,无趋光性。人工捕杀、摘除卵块、清洁田园均可有效地减少其发生数量。90％敌百虫晶体3000或4000倍液于其为害高峰之前、低龄若虫期喷洒,每亩施50公斤,防效可达100％。

Study on Acanthocor Is Scabcr (Linnaeus)'s Biological Characters and the Ways to Prevent and Control It

This paper reports Acanthocoris scaber(Jinnaeus)'s biological traits and the ways to prevent and control it in detail . According to our observations,A.scaber in the south of Henan Province has 5-6 genevations a year.The adult lives through the winter in the crevices of soil and bricks,under the stones, withered twigs and deaves. The harmful periods are form April to October and the height of the harmful periods from July to August. A. scaber does great harm to broad beans,potatoes eggplants as well as capsicum. We can decrease it in quantity effectively by catching it, removing its eggs and clearing the fields. Our studies show that dissolving the grains of dipt -erex ( 90%by contents ) in water ( 1 : 3000 or 4000 ) and spraying 50 kilos of them in per mu before the height of the harfmul periods, during which nymph is young, we can get perfect effectiveness of the prevention and control