Which of the following is not a herbicide?

Correct option is C

The correct answer is: (c) VAM

A herbicide is a chemical substance used to control or destroy unwanted vegetation, particularly weeds.

1. VAM (Vesicular-Arbuscular Mycorrhiza):

• Category: Not a herbicide.

• Usage: VAM is a beneficial fungus that forms a symbiotic relationship with plant roots, enhancing nutrient and water uptake.

• Significance: Promotes sustainable agriculture by reducing chemical fertilizer dependency.

Additional Information:

2,4D:

• Category: Herbicide.

• Usage: A widely used selective herbicide for controlling broadleaf weeds without harming most grasses.

• Action: Mimics natural plant hormones to disrupt growth.

DCMU:

• Category: Herbicide.

• Usage: Also known as Diuron, DCMU inhibits photosynthesis by blocking the electron transport chain in photosystem II.

• Action: Effective in agricultural fields and water systems to control algae and weeds.

Agent Orange:

• Category: Herbicide.

• Usage: A defoliant used during the Vietnam War to clear dense vegetation. It contains harmful dioxins and is infamous for its adverse environmental and health effects.

• Controversy: Its use has been heavily criticized due to its long-term toxic effects.