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很多树木和灌木的的主要害虫,都是因寄主的抗性减弱而乘机为害的投机者。 一种害虫在某个生育期或世代,其自我保护能力不强,即是防治的最佳时间。以下提供的是根据昆虫在各季的活动规律而制定的最新的害虫防治策略。 1 休眠期(11月～翌年3月)
Many of the major pests of trees and shrubs are opportunistic victims of host resistance. A pest in a certain period of growth or generation, its self-protection is not strong, that is the best time to control. The following are the latest pest control strategies based on the patterns of insects’ activity throughout the seasons. 1 dormant period (November to next March)