Are weeds harmful to environment??

Dear student,

Weeds are the unwanted plants that grow (by their own) with the crop plants and compete with them for food, shelter and space thereby causing great harm to the crops. The harmful effects of weeds are:

• It increases the cost of agriculture.
• It reduces the productivity of crop plant as the plant gets lesser nutrient, light and space.
• It increases the irrigation requirement.
• Some weeds can cause health hazards to man and animals. (allergy and poisonous).
• They act as alternate hosts for pests and pathogen.

Regards.