红棕象甲危害的诊断与防治

Diagnosis and Control for Damage of Rhynchophorus ferrugineus

[目的]研究红棕象甲的危害症状并提出相应的防治措施。[方法]通过研究红棕象甲的形态特征、生活史、习性、寄主及危害症状,提出相应的防治措施,并分析了综合防治的必要性及方法。[结果]红棕象甲幼虫蛀茎会导致植株心叶脱水垂软,后干枯,或者叶于叶柄或叶轴基部折断,幼虫蛀蚀会在植株羽片或裂片上留下整齐的蛀蚀孔。对红棕象甲应采取综合防治的策略,把化学防治和其他防治方法如农业防治、检疫防治、物理防治及生物防治结合起来,并且要及早防治才能将虫害造成的损失降到最低程度。[结论]该研究为红棕象甲的有效防治提供了依据。

[ Objective ] The aim was to study the damage symptom of Rhynchophorus ferrugineus and put forward the corresponding prevention measures. [ Method] The corresponding prevention measures were put forward according to the study on the morphological characteristics, life history, behavior, host and the damage symptom of R. ferrugineus, and the necessity and method of the integrated control were analyzed. [ Result ] The central leaves of the plants were dehydrated and wilting, or the leaf was broken from the basal part of the leafstalk or rachis after the stem was damaged by the R. ferrugineus larva. The larva could leave regular boring holes on the plant pinna or lobe. It should take strategies of integrated control, combine chemical control with other control methods such as agricultural control, quarantine control, physical control and biological control, and control earlier, then it could reduce the loss caused by the pests to a minimum degree. [ Conclusion] The research provided the basis for the effective control of R. ferrugineus.