Question

measures to control the unwanted plants

Answer 1

Weeding , applying recommended amount of fertilisers, pesticides ,proper tillage and scheduled irrigation

Answer 2

The unwanted plants which grow along with the other plants are called weed,
weeds are the unwanted plants which grow without any external support..

It can be controlled by fertilizers or manures or by :-
1. Crowd out weeds with thick lawn cover.
2. Maintaining healthy soil.
3. Cover the ground with landscape fabric.
4. Use biological controls such as insects & animals.
5. Use vinegar & other organic herbicides.