€¢ Includes 12 traps. €¢ Attracts and traps fungus gnats, aphids, thrips, and whitefly. €¢ Prevents insects from reproducing and infesting other plants. €¢ For indoor houseplants. >> Fungus Gnats and many other flying insects are attracted by the bright yellow color of Safer€™s Sticky Stiks. Prevents adult stages of the insect from reproducing and infesting other plants. Each package contains enough traps for 12 average size houseplants. Works great for indoor plants."