果树喷农药频繁及使用不当产生药害,常见症状为:叶片出现麻斑点、穿孔、焦灼、枯黄、黄化、失绿、畸形、厚叶、卷叶、落叶:果实出现斑点、畸形、变小、落果、不结实;花表现为枯焦、落花、落蕾;根部则粗短肥大、缺少根毛、表面变厚、发脆或变色坏死;整个植株生长迟缓,株体矮化,枝梢扭 Fruit trees spraying pesticides frequently and improper use of phytotoxicity, the common symptoms are: the leaves appear plaque, perforation, anxiety, yellow, yellow, green, deformity, thick leaves, leaves, leaves: fruit spots, deformities, smaller , The fruit is cofee, falling flowers, falling buds; the roots are stout hypertrophy, the lack of root hair, the surface becomes thick, brittle or discoloration necrosis; the entire plant growth retardation, plant dwarf, shoot twist