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防治栗瘿蜂宜秋季施药栗瘿蜂危害板栗,使受害芽春季形成瘤状虫瘿,不能抽枝和开花结果,严重时枝条枯死,危害一年,影响多年树势。目前防治主要通过人工摘除虫瘦,但费工费时;在成虫羽化期用药,由于羽化期长,喷药不易做到及时;利用天敌防治时,易造成周期性危害。笔...
Prevention and treatment of chestnut bee bee should be applied in the fall chestnut bee harm chestnut, so that the formation of the bud bud spring nymphalidae, not pumping and flowering results, the branches dead in serious cases, endangering a year, affecting many years of tree vigor. At present, prevention and treatment of pests mainly involve artificial removal of leptospira, which takes time and labor. In the eclosion period of adult insects, because of the long emergence period, it is not easy to spray pesticides in a timely manner. When controlling by natural enemies, it is easy to cause periodic hazards. pen...