化学农药防治苦楝诱饵树上星天牛成虫试验

EXPERIMENT OF CHEMICAL CONTROLING OF ADULT ANOPLOPHORA CHINENSIS (FORSTER) IN THE ALLURING TREE-MELIA AZEDARACH L.

报道了室内外应用化学农药防治苦楝诱饵树上星天牛(Anoplophora chinensis(Forster))成虫的试验结果。通过7种化学农药室内喷洒苦楝枝条毒杀星天牛结果表明:8%绿色地雷400倍液、50%甲胺磷乳油500倍液、40%氧乐果500倍液3种农药效果最好,48h 平均死亡率分别达98.3%、97.5%、95.5%;野外以50%甲胺磷乳油80倍液根部揭皮内吸法4d 死亡率达79.2%,沟施3%呋喃丹150g/株、50%甲胺磷乳油70mL/株的效果分别为75.0%和68.7%。林间在苦楝诱饵树上喷施农药毒杀星天牛时,以8%绿色地雷300倍液为首选,可每25d 喷药1次;而用50%甲胺磷400倍液、40%氧乐果400倍液应每半个月内施药1次为佳。

Tne result of test by spraying branches of Melia azedarach L.with 7 chemical pesticides for killing Anoplophora chinensis(Forster)indoor indicated 400 fold solution of 8% of'green mine',500 fold solution of 50% of methamidophos and 500 fold solution of 40% of omethoate had better effects.The average death rate was 98.3%,97.5% and 95.5%,respectively,in 48 h.The average death rate within 4 d was 79.2% when applied 80 fold solution of 50% of methamidophos inside tree bark of root part;The result of furrow-applying 3% of furandantin in 150 g/per plant,50% of methamidophos in 70 ml/per plant was 75.0% and 68.7% re- spectively,When spraying pesticides in alluring bead trees,the beat selection was 300 fold solution of 8% of' green mine',at intervals of 25 days.It was better at intervals of 15 days if applying 400 fold solution of 5% of methamidophes,400 fold solution of 40% of omethoate.