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本文报道了罗马尼亚落叶林中的研究结果,对鳞翅目的种类、分布及其对栎类的营养偏好、危害强度、总危害面积和防治措施等进行了调查。由于杀虫剂的施用,使天敌的数量减少,造成侵染面积的扩大,前渐变结构的紊乱、二次性害虫的出现和较低的寄生值等。由于有益生物的减少,使危害更加严重,解决的成败就在于能否保护这些有益生物以保持生态平衡。在综合的昆虫管理系统中,应该选择合适的方法以达到长效和最佳的经济及生态效益等目的。
This paper reports the results of studies in deciduous forests in Romania and investigates the species and distribution of Lepidoptera and their nutritional preference, harmed intensity, total hazard area and control measures. Due to the application of insecticides, the number of natural enemies is reduced, resulting in the expansion of infected area, the disturbance of pre-gradation structure, the emergence of secondary pests and lower parasitic values. As the reduction of beneficial organisms makes the harm even more serious, the success or failure of the solution lies in the protection of these beneficial organisms so as to maintain the ecological balance. In integrated insect management systems, the right method should be chosen to achieve long-term and optimal economic and ecological benefits.