Question

name one hormon which is used in controlling weed​

Answer 1

AUXIN

Auxins are one specific group of hormones that are used: as weed killers.

Answer 2

$\huge{ \boxed { \bold{ \red{ \bf{IAA}}}}}$

☛ Stands for Indole acetic acid.

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◈Many phenoxy herbicides works on the principle of chemical or plant Hormone IAA.

◈They cause unregulated IAA production in the plant, which leads to uncontrolled growth, twisting, thickening, elongation and eventually death as the weed literally grows itself to death.

◈Phenoxy herbicides includes 2,4-D, MCPA etc.

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❋Refer to the attachment..