药害是指用药后使作物生长不正常或出现生理障害。药害有急性和慢性两种。前者在喷药后几小时至3—4天出现明显症状，如烧伤、凋萎、落叶、落花、落果；后者是在喷药后经过较长时间才发生明显反应，如生长不良，叶片畸形，晚熟等。常见的症状是叶面出现大小、形状不等、五颜六色的斑点，局部组织焦枯，穿孔或叶片脱落，或叶片黄化、褪绿或变厚。
vt. hazard
misc. risk of damage
...蒸浓度 防治效果 药害 [gap=1416]rospora sitophila Shear et Dadge.; Fumigation concentration; Control efficiency; Hazard ...
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除草剂药害使大豆产量产生显著性差异。
The habicide damage will bring about significant difference in yield of soybean.
除草剂药害对大豆正常生长发育产生明显的影响。
The effect of herbicide damage on the growth and development of soybean was evident.
阐述了减轻长残留性除草剂对后茬作物残留药害的观点。
Then, the views about how to reduce residue injury of long residue herbicides to subsequent crops were expounded.
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