Question

Post-emergence herbicides used for controlling broad-leaved weeds in wheat crop are A. 2,4-D, B. Metsulfuron-methyl, C. Clodinafop-propargyl, D. Pendimethalin.

• A. A and D Only
• B. A and B Only
• C. A and C Only
• D. A, B and C Only

Hint:

For broad-leaved weeds in wheat, remember 2,4-D and Metsulfuron-methyl.

Answer 1

The Correct Option is B

Concept:
Post-emergence herbicides are applied after crop and weeds emerge. In wheat, broad-leaved weeds are controlled by specific herbicides.

Step 1: Check 2,4-D.
2,4-D is a post-emergence herbicide commonly used to control broad-leaved weeds in wheat. \[ A \text{ is correct} \]

Step 2: Check Metsulfuron-methyl.
Metsulfuron-methyl is also used as a post-emergence herbicide for broad-leaved weeds in wheat. \[ B \text{ is correct} \]

Step 3: Check Clodinafop-propargyl.
Clodinafop-propargyl is mainly used to control grassy weeds, not broad-leaved weeds. \[ C \text{ is incorrect} \]

Step 4: Check Pendimethalin.
Pendimethalin is generally used as a pre-emergence herbicide. \[ D \text{ is incorrect} \] \[ \therefore \text{Correct Answer is (B)} \]