论文部分内容阅读
梨黄粉蚜Aphanostigmajakusuiensis(Kishida)是一种为害梨果的蚜虫。该蚜在河北省中南部一年发生5~10代,成虫寿命长,产卵量高,田间常年有大量卵存在,可造成世代严重重叠;此蚜靠1龄若虫转移扩散,2龄若虫至成虫则固定一处生长发育。防治可采用冬季刮树皮、转移扩散期涂粘虫胶环及化学药剂喷雾等方法,防治效果好的药剂是既杀虫又杀卵的拟除虫菊酯类和硫制剂。
Aphanostigmajakusuiensis (Kishida) is a kind of aphids that damage pear fruits. The aphid occurred in central and southern Hebei Province for 5 to 10 generations a year, adult longevity, high fecundity, perennial field have a large number of eggs, can cause serious overlap generation; this aphid by the first instar nymphs spread, 2nd instar nymphs to Adult fixed growth and development. Prevention and treatment can be used in winter scraping the bark, transfer and diffusion of coated turtle glue ring and chemical spray, etc., good control effect is both insecticidal and ovicidal pyrethroids and sulfur preparations.