大袋蛾生物防治技术综合应用研究  

Integrated application of the biological control techniques against Clania variegata Shellen

作　　者：巨云为[1] 景志高 商金杰 

机构地区：[1]南京林业大学,江苏南京210037 [2]东营市林业局,山东东营257091

出　　处：《中国森林病虫》2004年第5期39-42,共4页Forest Pest and Disease

摘　　要：大袋蛾是林业的一大害虫。在 1998— 1999年试验的基础上 ,2 0 0 0— 2 0 0 2年在刺槐小片林和林网内对综合生物防治技术进行科技攻关和实践应用研究。试验结果表明 ,Bt制剂的防治效果达到 80 %以上 ;寄生蝇的寄生率在片林中达到 2 5 % ,在林网中达 2 1% ;而大山雀的招引率也很高 ,平均达 70 %。 3种生物防治方法综合使用后 ,刺槐片林大袋蛾老熟幼虫平均虫口密度由防治前的4 7 4头 /株下降到防治后的 0 39头 /株 ,林网内由 4 6 9头 /株下降到 0 78头 /株 ,而相似的对照区大袋蛾平均虫口密度刺槐片林为 34 8头 /株 ,林网 37 6头Clania variegata Snellen was a harmful pest to some trees.Based on the tests from 1998 to 1999, The application of integrated biological techniques in the small black locust forests and forest nets against Clania variegata was studied from 2000 to 2002.The result showed that the control (effect) of Bt was over 80%; the parasitization of tachina flies was over 20%; the attraction rate of great tit was 70%.After the integrated application of these three methods,the population density of Clania variegata mature larvae decreased from 47.4 to 0.39 per tree in the small forests,and from 46.9 to 0.78 per tree in the forest nets.But the density in the control lands was 34.8 and 37.6 per tree respectively.

关 键 词：大袋蛾 生物防治 刺槐 

分 类 号：S763.42[农业科学—森林保护学]