Question

Which one among the following chemicals is used for preventing defoliation of forest trees?

• A. Amo-1618
• B. Phosphon D
• C. Malic hydrazide
• D. 2,4-D

Answer 1

The correct option is D 2,4-D

Defoliation is the removal of all or part of the foliage from the tree. The insects of the forests are the primary agents of defoliation. Mostly the caterpillars, larvae, maggots and nymphs bring about the damage.

Since, depletion of stored food leads to decreased efficiency in photosynthesis, defoliation weakens the trees and increases the chances of attack and death. While there are some known chemicals that are used to prevent defoliation in extreme cases. Chemicals such as 2,4-D are used to prevent defoliation.