陕北枣树主要害虫防治对策

对陕北黄河沿岸枣树害虫的调查发现,原来的常灾性害虫枣尺蠖、枣镰翅小卷蛾、桃小食心虫、枣飞象等继续蔓延成灾,以往被认为次要的虫种如蚱蝉、大球胸象、黑绒金龟及日本蜡蚧等已上升为主要虫种。本文根据上述8种主要害虫的发生危害特点、已有的技术成果及群众的防治经验,结合陕北当前枣树生产的实际提出了相应的防治对策。

CONTROL MEASURES FOR MAJOR PESTS IN JUJUBE FORESTS ON NORTHERN SHAANXI

Through the investigation of jujube insect pests along the Yellow River banks in Northern Shaanxi,it is found that the original desastering pests:Chihuo,Carposina niponenis,Scythropus yasumatsui etc are still occurrence,the other pest which were known as the secondary pests become as the major pests for jujube,they are Cryptotympana atrata,piazomias validus,Maladera crientalis and Ceroplastes japoniscus.The paper proposed some control measures based on pests characteristics,technique results,mass experience and the recent situation of jujube production.