广东地区紫薇绒蚧的防治试验

Control Experiment on Eriococcus legerstroemiae Kuwan in Guangdong Area

摘要:

摘要：紫薇在广东地区广泛种植，但紫薇绒蚧作为比较难根治的病虫害，一直严重影响紫薇的生长。笔者选用氧化乐果乳剂、马拉硫磷乳剂两种药剂在紫薇绒蚧发生严重的8～9月，用不同浓度的药剂对紫薇绒蚧进行致死率比较研究，试验表明：不同浓度的两种药剂对紫薇绒蚧的致死率较高，具有良好的防治作用，可以针对不同地区的发病规律进行有效地药物防治。

Abstract:

Abstracts:Lagerstroemia indica Linn.is planted wildly in Guangdong area. But Eriococcus legerstroemiae Kuwan is difficultly control pest which prevented its growth. Two reagents of omethoate and Malathion were adopted by authors in August to September that the pest occurred seriously. lethality rate is comparative studied with different concentration agent. The results showed that the high lethality rate in different two agents and it would be control effectively in different area.