The most common bulb pests are aphids and bulb mites. Although not insects, slugs and snails are also major pests. For more information on slugs and snails, refer to HGIC tape message and fact sheet 2357 called Snails and Slugs .
Aphids are small, pear-shaped insects.
They are usually found in clusters on new growth. They suck plant sap causing distorted growth. As they feed, they excrete a sugary material called honeydew, which covers the leaves making them sticky. Sooty mold fungi can grow on the honeydew, producing unsightly, dark splotches on the plant surfaces. Aphids can be removed with a strong stream of water if applied regularly.