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一九八七年由于测报工作没有跟上,防治技术单一,以及等、靠国家拨款等原因,致使袋蛾在全省危害成灾。袋蛾种类虽多,但河南省主要是大袋蛾Cryptothelea variegata Snellen,主要为害泡桐。该虫在河南一年1代,幼虫有群集性利于化防,虫袋醒目易于人工摘除,雌
In 1987, because of the failure to keep track of the report, the prevention and control of technology, and other reasons, such as funding by the State, the bag moths would be harmed and harmed in the whole province. Although there are many species of moths, Cryptothelea variegata Snellen is the main species in Henan Province, and the main species is Paulownia. The worm in Henan a year a generation, the larvae are clustered in the prevention and control, eye-catching easy to remove artificial insects, females