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机构地区:[1]福建林学院,福建省连城县林业委员会
出 处:《林业科学研究》1994年第1期101-105,共5页Forest Research
基 金:福建省科委资助
摘 要:钩翅尺蛾是黑荆树重要食叶害虫,在福建la发生5代,以蛹在松土中越冬,翌年3月中旬成虫开始羽化。卵期平均7.2~9.3d,幼虫期5龄,平均历期18.4~29.5d;越冬蛹平均历期148.6d,其余各代9.3~13.1d。成虫寿命6.3~8.2d,每雌平均产卵604粒。主要天敌有中华茧蜂、螟蛉绒茧蜂、斜纹猫蛛、沟渠豹蛛等。林间20%氰戍菊脂100倍液大面积超低容量喷洒,以及施放白僵菌粉炮,均有良好防治效果。Hyposidra aquilaria Walker is a serious pest of Acacia mearnsii De Wild.in Fujian Province. It has 5 generations a year and overwinters as pupa in the loosen soil. Adults begin to emerge in mid-March in the follow-ing year. The egg stage lasts 7.2~9.3 days.The larvae generally have 5 inst-ars and they last l8.4~29.5 days.The larvae feed on the tender leaves. The overwintering pupae lasts 148.4 days and the pupae of other generations last 9.3~13.1 days. The adult moths iive for 4~12 days.The average number of eggs of a female is found to be 604.The important natural enemies of H.aquilaria are Bracon chinensis ,Apanteles ruficrus and the spider Oxyopes sertatus, Pardosa laura.The effective measures to kill 1~3instar larvae are spraying 100 times of 20% Fenvalerate with ultra low volume or dusting Bea-uveria bassiana powder in the field.
分 类 号:S763.729.9[农业科学—森林保护学]
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