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2,4-D丁酯是麦田中常用的除草剂,但部分林果树对其特别敏感,常造成不同程度的危害。2,4-D丁酯除草剂喷雾时能随风飘移,风越大,除草剂飘移的距离越远,造成的危害越大。顺风方向可殃及150米以外的林果树,最易受害的是毛白杨和梨树。毛白杨受害后,叶片小而卷曲,薄而且黄。变成鸭掌状深裂,树膛叶片内部由于受害,与外围叶片相比明显偏小,一直到落叶都是小叶状态。梨树受害后,叶片向下反卷,叶色发黄,叶片小而薄,树势较弱。
Butyl 2,4-D is a commonly used herbicide in wheat field, but some of the fruit trees are particularly sensitive to it, often resulting in different degrees of harm. 2,4-D butyl herbicide spray can drift with the wind, the wind, the greater the distance the herbicide drift, the greater the harm caused. Downwind direction can affect the forest fruit trees 150 meters away, the most vulnerable are white poplar and pear trees. Populus damaged, leaves small and curly, thin and yellow. Into the duck-palm deep cleft, tree-leaf interior due to damage, compared with the outer leaves significantly smaller, until the leaves are lobular state. Pear tree victims, the leaves down curl, leaf color yellow, small and thin leaves, the tree is weak.