根据笔者16年来对桔园管理的实践,科学用药成效喜人;反之使用不当,则易产生药害,轻的在果面上产生疤痕或使叶果畸形,灼伤,烧芽,叶片失绿变黄,日灼病果增加;重的导致落叶、落果。下述几种药剂应慎用。一、2郾4—D80%2郾4—D即是一种植物生长素,药液浓度在0郾001%—0郾002%时,可 According to the author’s practice of orange garden management for 16 years, the scientific medicine has achieved satisfactory results; on the contrary, it is easy to produce phytotoxicity if it is improperly used, lightly produces scarring on the fruit surface or deformity of leaves, burns, burning buds, , Increased sunburn disease; heavy lead to deciduous, fruit drop. The following several agents should be used with caution. One, 2 郾 4-D80% 2 郾 4-D is an auxin, liquid concentration of 0 郾 001% -0 郾 002%, can be