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香樟红蜘蛛为刺吸性害虫,主要以群居刺吸树叶汁液而对香樟造成危害。近几年,江南部分城市经常出现红蜘蛛大发生现象,其主要原因除红蜘蛛生命力顽强,繁殖速度快、周期短,传播途径广、个体较小、肉眼不易发现及易产生抗药性等个体原因外,还与树种单一、树冠密度大、通风透光差及防治措施不当等有密切关系。因此,香樟红蜘蛛防治,应坚持“预防为主、综合防治”的原则。从试验结果看,综合采用生物调节、物理防治,充分利用天敌资源及生物农药防治等多种措施效果非常明显,基本上能控制红蜘蛛对香樟的危害,不再出现红蜘蛛大发生的现象。
Cinnamomum red spider is a sucking insect pests, mainly inhabiting thorn leaves juice camphor caused harm. In recent years, some sporadic occurrences of spider mites often occur in some cities in the south of the Yangtze River. The main reasons for this are mainly individual spiders, such as tenacious vitality, fast propagation speed, short cycle, wide spread of transmission routes, small individuals, hard-to-find eyes and susceptibility to drug resistance In addition, but also with a single species, canopy density, poor ventilation and poor control measures are closely related. Therefore, the prevention and treatment of red caterpillars of camphor, should adhere to the principle of “prevention first, comprehensive prevention and cure”. From the experimental results, it is obvious that the comprehensive application of biological regulation, physical control, full use of natural enemy resources and biological pesticide control and other measures is very obvious, and basically can control the red spiders on camphor damage, no longer occur spider mite .