Disease: Thrips, including western flower thrips, onion thrips, and other species.
Latin binomial: Various thrips including Frankliniella occidentalis (western flower thrips) andThrips tabaci (onion thrips).
Host Crops: Numerous plant species including many vegetables such as basil, broccoli,cabbage, cauliflower, cucumber, onion, potato, pumpkin, spinach, squash, tomato andwatermelon.
Symptoms of thrips feeding injury on basil plants. Thrips tend to aggregate in the buds, feeding on succulent new leaves.
This results in misshapen leaves as the damaged leaves expand, thickening and scarring of the leaf tissue, and even holes in the leaf blades.
Photo Source: Jules Riske
Photo Source: Lindsey du Toit, Washington State University