Leeks suffer from insect pests including the thrips species "Thrips tabaci" and the leek moth. Thrips and aphids feed on the leaves. Other pests include caterpillars, thrips, slugs and snails. Hass avocados have shown susceptibility to pests such as Persea mites and avocado thrips. Many thrips species are pests of commercially important crops. Other important pests include pod sucking bugs, thrips, and the postharvest cowpea weevil, "Callosobruchus maculatus". Various midges and thrips are comparatively minor opportunist pollinators. The Phytoseiidae are a family of mites which feed on thrips and other mite species. Insecticidal soap spray is effective against thrips. The wasp eggs are deposited in the eggs of thrips. Only one insect, a thrips, has been identified. Some species of thrips create galls, almost always in leaf tissue. Most species of Hypericum are prone to thrips, scale, anthracnose, rust, and leaf spots. Spinosad is also commonly used to kill thrips.