摘要
近 5年的观察研究表明 :鞭角华扁叶蜂幼虫平均食叶量为 3 6 4g/条 ;柏木鲜叶量 (W )与柏木胸径 (D)关系呈W =2 5 76 96 36 e0 12 954 9D。确定柏木失叶强度 18 3%为防治指标 ,胸径为 10、12和 14cm柏木的鞭角华扁叶蜂防治指标分别为 4 74、 6 14和 795头 /株。
The results showed that the average defoliating capacity of Chinolyda flagellicornis was 3 64g per larva.The relationship between the quantity of Cupressus funebris fresh leaves (W)and its breast height diameters(D)was W=2576 9636e 0 129549D .The control index was 18 3% defoliation and these of Cupressus funebris with breast height diameters of 10?12 and 14cm were 474?614 and 795 larvae per tree respectively.
出处
《中国森林病虫》
北大核心
2002年第4期3-4,共2页
Forest Pest and Disease
基金
浙江省台州市科委项目"鞭角华扁叶蜂综合防治技术研究"的部分内容
