A common pest found in greenhouses and gardens, thrips damage plants by sucking their juice. Plant leaves may turn pale, splotchy, and silvery, then die. Injured plants are twisted and discolored. Host plants include onions, beans, carrots, and many other garden vegetables, and many flowers. To get rid of thrips remove weeds from around garden areas to eliminate alternate hosts. Clean up crop debris in the garden, especially onion leaves after harvest. Severe populations may require at least-toxic, short-lived botanical insecticide (pyrethrin) to reduce pest numbers. Neem oil can also be used to treat heavily infested plants.
Uzma Niazi (Agronomist)