Question

Dichloral urea is used as a

• A. Soil herbicide for pre emergence treatment
• B. Soil herbicide for post-emergence treatment
• C. Soil nematicide for pre emergence treatment
• D. Soil fungicide for post emergence treatment

Hint:

Pre-emergent herbicides target weeds before germination; Dichloral urea is one such example.

Answer 1

The Correct Option is A

Step 1: Dichloral urea inhibits cell division in germinating weed seedlings.
Step 2: This mechanism only works before or at emergence, ruling out any post-emergence use.
Step 3: It has no nematocidal or fungicidal activity, ruling out those categories.
Step 4: Correct option, soil herbicide for pre-emergence treatment.