【摘要】 木荷空舟蛾Vaneeckeia pallidscia是近年来木荷林出现的重要害虫之一。采用室内外养虫及林间调查相结合的方法对木荷空舟蛾的生物学观察结果如下:在广州1年完成4代,以幼虫在土壤中越冬;幼虫为7龄,成虫有性二型现象;在26℃时,卵期4.20±0.71 d,幼虫期33.35±1.06 d,蛹期10.27±1.08 d。在木荷林中,9～10月种群数量最大,对木荷造成严重的危害;选用4.5%高效氯氰菊酯、1%阿维烟剂、苏云金杆菌Bt、25%灭幼脲Ⅲ号和5%锐劲特对木荷空舟蛾幼虫进行防治试验,杀虫效果分别为100%、92.4%、71.4%、68.1%和61.1%。更多还原

【Abstract】 Vaneeckeia pallidifascia ( Hampson) is one of important pests of Schima superba in recent years. The ecological characteristics of V. pallidifascia were studied by indoor and outdoor trials. The results showed that the pest developed 4 generations a year and overwintered with larvae in Guangzhou, Guangdong province of China. The larva stage included 7 instars. It appeared sexual dimorphism on the adults. The egg, larva and pupa stages lasted 4.20 ±0.71 days, 33.35 ± 1.06 days and 10.27 ±1.08 days at 26℃ respectively. The populations in the forest reached the largest between September and October, when Schima superba was imperiled seriously. 4. 5% Beta -cypermethrin, l%avermectin smoke agent, Bacillus thuringiensis, 25% benzoylphenal urea Ⅲ and 5% fipronil were used to control the larvae in a Schima superba plantation. The results showed that their control effects were 100% ,92.4% ,71.4% ,68. 1% and 61. 1% respectively.更多还原