Bulb mites cause corm deterioration. The leaves turn yellow and the flowers blast. Mites are yellowish white, slow moving, shiny, and bead-like. Discard infested bulbs. Corms not showing root development may be dipped in 122 degree water for a few minutes. No chemical control is listed.
Tulip bulb aphid is waxy gray. It clusters under the bulb coats and may infest the above ground plant parts. No