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通过对板栗物候期相关性的研究,建立不同发育阶段的回归关系方程,可以准确及时地掌握虫态的发育进度。应用物候期测报法,在早春用氧化乐果或久效磷涂环防治瘿内幼虫,虫口减退率达87.7%。比常规涂环防效提高5倍多。
By studying the phenophase correlation of chestnut and establishing the regression equation of different developmental stages, the progress of development of the insect state can be grasped accurately and timely. Phenological prediction method was applied in the early spring with omethoate or monocrotophos coating ring control larvae within the population, the reduction rate of 87.7%. More than 5 times more control efficiency than conventional coated rings.