A herbicide treatment applied after the crop or weed appears is called?

A herbicide treatment applied after the crop or weed appears is called?

• A. Pre-emergence
• B. Post-emergence
• C. Systemic
• D. Contact

Answer: (B)

Post-emergence refers to applying a herbicide after the crop or weeds have emerged and are visible. This timing targets actively growing plants to reduce competition once they’ve shown up in the field. In contrast, pre-emergence herbicides are used before emergence to prevent germination or early growth. The other terms describe how the chemical moves or acts inside the plant—systemic means it travels within the plant, while contact kills only the tissues it touches. So when the treatment is made after emergence, it’s post-emergence.

Post-emergence refers to applying a herbicide after the crop or weeds have emerged and are visible. This timing targets actively growing plants to reduce competition once they’ve shown up in the field. In contrast, pre-emergence herbicides are used before emergence to prevent germination or early growth. The other terms describe how the chemical moves or acts inside the plant—systemic means it travels within the plant, while contact kills only the tissues it touches. So when the treatment is made after emergence, it’s post-emergence.