University of Florida


Thrips are very small and slender insects of yellow, black, or brown, and they're a major pest on plants.

Both larval and adult thrips feed using a "punch and suck" technique. They can feed on leaves, buds, flowers, and even small fruit.

Leaves infested with thrips dry out and have a stippled or silver-flecked appearance. You may see small brownish specks of excrement on the undersides of leaves.

Infested flower buds fail to open, or the blooms are deformed, while damaged flowers become streaked and discolored.

You can look for thrips by shaking injured foliage or flowers over a white piece of paper.

As with any pest, make sure you know what's damaging your plants before beginning treatment, and always follow label instructions.


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