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大袋蛾Cryptothelea veriegata SheIien 在南昌地区一年发生1代,以老熟幼虫在袋内于10月间开始越冬,雄虫于翌年3月下旬开始化蛹,雌虫于4月上旬开始化蛹,5月上、中旬羽化和产卵,5月底至6月中旬孵化。调查223种乔灌木树种,有173种受害,占77.5%。落叶树重于常绿树;阔叶树重于针叶树;低海拔重于高海拔。防治方法除秋冬季人工摘袋和保护、招引鸟类外,应及时在6月上、中旬的初孵幼虫期用1/1000晶体敌百虫、1/1000马拉硫磷等有机磷农药防治。近几年来在江西许多地方严重发生,不论是用材林、经济怀、果木林都普遍危害。
Cryptothelea veriegata SheIien occurs in Nanchang area for one generation a year. The mature larvae begin to overwinter in the pouch in October. The male began pupation in late March of the following year. The female began to pupate in early April, 5 May, mid emergence and spawning, hatch from late May to mid-June. A total of 223 species of shrubs and trees were investigated, of which 173 species were affected, accounting for 77.5%. Deciduous trees are heavier than evergreens; broadleaf trees are heavier than conifers; Control methods In addition to autumn and winter artificial bag removal and protection, attracting birds, it should be timely in June on the first larvae in mid-early stage with 1/1000 crystal trichlorfon, 1/1000 malathion and other organophosphorus pesticides control . In recent years, many places in Jiangxi Province have been seriously affected, both timber forests, economic Huai, fruit trees are generally hazardous.