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一、掌握病虫的部位园林植物种类多,害虫、病害类别繁杂,每种病虫各有独特的习性与危害特点。如:白粉病易侵害植物幼嫩部
First, grasp the site of pests Garden plant species, pests, diseases and other complex categories, each pest has its own unique habits and hazards characteristics. Such as: powdery mildew easily infested plants tenderness