Author(s) K. A. Delahaut.
Onion thrips (Thrips tabaci) are an important annual pest of onion. They may attack nearly all garden crops, but serious damage is generally confined to onions, cauliflower, cabbage, snap beans, cucumbers, melons, and tomatoes. Because thrips prefer tight spaces, cabbage varieties with extremely dense heads are most susceptible to damage.
Find out how to identify, prevent, and control onion thrips in your home garden by reading this helpful fact sheet (2 pages; 2001).