Question

The most important weed against which eradication measures would be taken on is:

• A. Eichhornia
• B. Dactylis
• C. Parthenium
• D. Ageratum

Answer 1

The correct option is C

Parthenium

The correct option is C.

Explanation of correct option:

1. Parthenium is also known as congress grass which came to India as a contaminant in wheat.
2. This weed caused many allergic reactions and respiratory illnesses in people.
3. Via allelopathy it damages the crop to a great extent.
4. Therefore several eradication measures were taken against it.

Explanation of the incorrect options:

Option A:

1. Eichhornia commonly known as water hyacinth is also a weed that grows in water.
2. But no major eradication measures have been taken for the removal of water hyacinth.

Option B:

1. Dactylis is known as orchard grass which is a weed.
2. It does not spread at a faster rate and extensive eradication is not required.

Option D:

Ageratum is a weed also known as chickweed or billygoat weed.

Final answer: The most important weed against which eradication measures would be taken on is Parthenium.