When did the herbicide injury appear?
Where do you observe damage? Check weeds and crops to determine selectivity.
What are the symptoms?
Root growth is inhibited. The root tips have a clubbed appearance. Grasses are more sensitive than broadleaves. –Root inhibitors
Plants have pruned roots. The lateral roots are short and slender giving a bottle-brush appearance. Broadleaf weeds are often more sensitive than grasses. –ALS inhibitors
Seedling roots are short and thickened with root proliferation. Broadleaves are more senstive than grasses. –Growth regulators