论文部分内容阅读
枇杷果实象甲在贵州南部地区1a发生1代,以老熟幼虫在土下3~6cm深处越冬,翌年4月中旬越冬幼虫化蛹,5月初成虫羽化。成虫啃食枇杷嫩梢,造成嫩梢萎蔫枯死,幼虫蛀食果实引起早期落果、烂果。在成虫出土期地面喷洒6%甲敌粉可使在土表爬行的成虫触杀死亡;春夏梢抽发期,用25%敌杀死等菊酯类杀虫剂1000倍液喷树冠,防治成虫效果较好。
Loquat fruit weevil in the southern region of Guizhou 1 generation occurred in 1, with mature larvae in the soil depth of 3 ~ 6cm wintering, the middle of April the following year the winter larva pupation, early May adult emergence. Adult eating chewing loquat, resulting in wilted wilting die, larvae eaten fruit early drop fruit, rotten fruit. In the excavation period of the surface spraying 6% nail powder can cause adult crawling in the soil surface to death; spring and summer shoot pumping period, with 2 5% enemy kill insecticides and other pyrethroid 1000 times spray canopy, Prevention and treatment of adult better.