摘要
日本锤角叶蜂ＣｉｍｂｅｘｊａｐｏｎｉｃａＫｉｒｂｙ是近年来在中国山西中部出现的一种为害榆树的新害虫，曾造成了严重灾害。此虫１年发生１代，以老熟幼虫做茧，在枯枝落叶或２～３ｃｍ深疏松土中越冬。雌虫行孤雌生殖，单头产卵量５０粒左右。成虫发生高峰期在５月上旬。幼虫为害榆树高峰期在５月中旬至６月中旬。防治关键时期一是４月中旬成虫羽化前，可于树冠下挖茧，集中烧毁；二是５月中旬幼虫孵化盛期，可喷功夫３０００倍液防治，效果在９０％以上。
The Cimbicid sawfly Cimbex japonica Kirby is a newly occurred pest in China. In recent years it has caused serious damage to Ulmus pumila in the central part of Shanxi Province. The generation is annual with adults on the wing in early May. No adult male occurred. Each female can lay about 50 eggs. The eggs are laid singly on the edge of the leaf under the upper surface. The feeding peak of the larvae is from mid-May to mid-June. When its larva is full-grown, it goes into the litter or into the furrows in the soft soil 2～3cm in depth, makes a elliptic dark brown cocoon and there spends the winter, changing to a prepupa. Pupation takes place in mid-April. The pest was 90% or over controlled by Cyhalothrin(Karare) at 3000×dilution during the peak of the larval eclosion in mid-May. In mid-April, before the emergence of the adults, digging out the cocoons from the soil under tree crowns and then burning them was also very effective against the pest.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1998年第6期63-66,共4页
Scientia Silvae Sinicae
关键词
日本锤角叶蜂
形态特征
生物学特性
Cimbex japonica , Morphological characters, Bionomics
