i have these little catepillar things(very small) with black heads that are eating my plants and making a white web like formation on some of the leaves, how do i rid my crop of these pests?

ohh and i have ants too, do they do anything negative?
Supportradicalhabits Reviewed by Supportradicalhabits on . Pests suck i have these little catepillar things(very small) with black heads that are eating my plants and making a white web like formation on some of the leaves, how do i rid my crop of these pests? ohh and i have ants too, do they do anything negative? Rating: 5