关键词: 马尾松毛虫, 米螨, 防治, 药效分析

Abstract:

The toxicity analysis of tebufenozide against Dendrolimus punctatus was studied.The rlesuhts showed that in laboratory tebufenozide(24%)could kill the 3rd instar pine caterpillar with the average mortality of 100.00%, 94.20%, 99.20%, 78.30%, 85.50%and 79.10% respectively when it was diluted with water to 120, 70, 35, 14, 7 and 3.5 mL/kL.In the forest of Pingle County, Guangxi Zhuang Autonomous Region, the average mortality were 93.47%, 91.55%, 85.52%and 70.32% respectively when tebufenozide was diluted with water to 120, 80, 60 and 40 mL/kL.In Pingle County, Guava Zhuang Autonomous Region, at the Same concentration of tebufenozide as mentioned above, the average mortality were95.79%, 92.91%, 76.93%and 74.94% respectively.Data analysis checked by LSR test showed that the differences were quite significant between treatment and control

Key words: Pine caterpillar, Tebufenozide, Control, Toxicity analysis