摘要
丰宁新松叶蜂NeodiprionfengningensisXiaoetZhou系甘肃新记录。在甘肃哈思山林区1年1代,以老熟幼虫吐丝结茧变为预蛹在土壤腐殖质层或枯枝落叶层内越冬,翌年6月中旬为羽化盛期,6月下旬为孵化盛期,8月中旬结茧化蛹。幼虫6龄,3龄前食量小,抗性弱,是防治的最佳时机。用2.5%功夫乳油、2.5%溴氰菊酉旨乳油8000倍液喷雾,用25%灭幼脲胶悬液20～40mmol喷雾,防治效果均可达100%。
Neodiprion fengningensis , a new record in Gansu, has one generation a year in the forest area of Hasi Mountain It overwinters as prepupa beneath duff, emerges in the mid June of the next year,incubates in the last ten days of June and pupates in mid August.Larva has 6 instars.The larvae in the lst to 3rd instars have a small capacity for eating and a low resistance,so its optimum to control it in this period.
出处
《森林病虫通讯》
北大核心
1999年第3期11-13,共3页
Forest Pest and Disease
关键词
丰宁新松叶蜂
生物学特性
天敌
防治
Neodiprion fengningensis, bionomics, control, natural enemy
