柑桔“以螨治螨”生物防治技术研究

柑桔病虫害发生种类多，为害重，生产上喷药次数多，果品存在农药残留高，为了使我市柑桔达到无公害生产水平，减少化学农药使用量，提高柑桔品质，笔者通过释放捕食螨Amblyseius spp．建立捕食螨种群，同时结合使用生物农药和电子灭虫灯，以及白花草Ageratum conyzoides L．等栽培措施，达到了长期持续控制柑桔病虫发生的目的，而且减少我县柑桔生产的农药残留问题，降低生产成本，减少环境污染。

STUDY ON BIOLOGICAL CONTROL OF MITES IN CITRUS

There are various types of diseases and insect pests for citrus, which cause great damages to the plants. Normally, pesticide was frequently used to decline the damages, but the residue was in relatively high standard at the same time. To achieve the target of nuisanceless in our city, reduce the pesticide usages and enhance the qualifies of the citrus, we distribute the occident,dis and established their population. Whilst, we also took the measurements, such as using the biological pesticide, placing electric bug- killer lights and planting the ageratum, tocontinuously restrain the diseases and pests in the long term. Thus we are also able to reduce the residue of pesticide, diminish the cost of production and phase down the environmental pollution.