橘光绿天牛危害九里香的现状调查及化学防治试验

Investigation on Chelidonium citri harm to Murraya paniculata and experiment on its chemical control

本文对橘光绿天牛蛀食九里香枝干造成枝干空洞、枯死的现状进行调查,并应用注射法进行不同药品和浓度的化学防治试验。结果表明,橘光绿天牛对九里香的危害程度达62.5%。化学防治中,除了40%氧化乐果乳油80 g·L^(-1)的处理外,各处理的虫口平均死亡率达80%以上,综合药效、环保、经济考量,选用80%敌敌畏乳油80 g·L^(-1)、保绿宁乳油80 g·L^(-1)是防治九里香橘光绿天牛危害最佳选择。

Murraya paniculata individuals attacked by Chelidonium citri Grressitt were investigated on empty holes in stems and withering rate. Chemical control experiments based on injection were carried out with various chemicals at different dose. The damage rate of Murraya paniculata is discovered to have reached 62.5%. With respect to chemical control, in all disposal samples insect .reduces with a rate above 80%, expect for the disposal with 40% 80 g · L^-1 omethoate emulsion. With integrated advantages of high insect reducing effect, little damage to environment and economic benefit, the dose of 80% 80 g· L^-1 dichlorvos in emulsion turns out to be the optimized chemical method to control the damage of Chelidonium citri Grressitt to Murraya paniculata.