论文部分内容阅读
近些年来,枣龟蜡蚧在我市平原区各县蔓延,危害较重,致使枣树树势普遍衰弱,产量明显降低。为有效地开展好枣龟蜡蚧的药剂除治工作,自1996年以来在枣树较多的县(区)设置了多个试点,连续3年开展了除治枣龟蜡蚧试验,并取得了明显的效果。1确定喷药除蚧的有利时...
In recent years, the jujube turtle scale spread in all counties in the plains area of our city, endangering the heavy, resulting in generally weak jujube tree vigor, significantly reduced production. In order to effectively carry out the work of removing and controlling the pesticides of the jujube scale larvae, several pilots have been set up in counties (districts) with more jujube trees since 1996 and the test of removing jujube scales and larvae has been carried out for three consecutive years. The obvious effect. 1 Determine when the spraying is advantageous in addition to the scale ...