HARMFUL EFFECTS OF WEED ON CROP

 > They interfere in harvesting

>They compete with crop plants for water, nutrients, space and light 

>They affect plant growth

>Presence of weeds increase the cost of agriculture and hinders the process of work

>It increase the irrigation requirement

>destroy native wildlife habitat and reduce natural food supplies

>makes fire hotter and more destructive

>hide feral animals and make them difficult to control