Apple Tree Leaf Distortions and Cupping From Herbicides
症状
• Abnormal growth, necrosis, blistering and discoloration occurs in plant tissues.
![Leaf cupping of hybrid elm due to exposure to growth regulator-type herbicides.](/agriculture/sites/default/files/2021-06/Leaf%20cupping%20due%20to%20herbicides.jpeg)
![Strapping and distortion of apples leaves due to exposure to growth regulator-type herbicides](/agriculture/sites/default/files/2021-06/Strapping%20and%20discoloration%20from%20herbicides.jpeg)
Management and other important facts
• Always read and follow the product label when applying herbicides.
• Avoid applying herbicides during windy conditions to prevent herbicide drift.
• Avoid applying broadleaf herbicides on warm days.
• The use of farm-grade chemicals for broadleaf weed control on lawns has killed even mature trees.
Authors: Aaron Bergdahl and Joseph Zeleznik
This website was supported by the U.S. Department of 农业’s (USDA) Agricultural Marketing Service through grant 14-SCBGP-ND-0038.
Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the USDA.