Chlorimuron-ethyl
Trade Name: Classic
Group 2
Site of Action: Inhibitors of acetolactate synthase (ALS) and also called acetohydroxyacid synthase (AHAS)
Symptoms
POST application:
- Plants quickly stop growing
- After 3-5 days leaves appear chlorotic following by chlorosis at the growing point
- After 7- 21 days, there is usually complete foliar necrosis and plant death
- Certain susceptible species may stay green but are stunted
Uptake and Translocation
Following foliar application:
Persistence
- Limited residual activity after application
- Half-life in field: 40 days
- May cause carryover injury onto vegetable crops the year after application