Undesirable plants may grow naturally along with the crop called weeds.
The removal of weeds is called weeding.
Weeds compete with the crop plants for water, nutrients, space and light. Thus, they affect the growth of the crop.
Some weeds interfere even in harvesting and may be poisonous for animals and human beings.
Tilling before sowing of crops helps in uprooting and killing of weeds, the manual removal includes physical removal of weeds by uprooting or cutting them close to the ground, with the help of a khurpi.
Weeds are also controlled by using certain chemicals, called weedicideslike 2, 4-D.
The weedicides are sprayed during the vegetative growth of weeds before flowering and seed formation.
