By Ajay Anand
Any unwanted plant which grows along with crops is called weed.
While some weeds are poisonous, many are not harmful.
Weeds compete with plants for various resources; like sunlight, air, water and nutrients.
Weeds hamper the normal growth of plants. Hence, removal of weeds is necessary for a good harvest.
Removal of weeds is called weeding.
Weeding is usually done manually or by using a trowel.
Weeds are also removed during ploughing.
Weedicides are the chemicals which destroy weeds.