bulb mite
noun
a widespread mite, Rhizaglophus eclinops, that tunnels in the bulbs of lilies and other plants
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for bulb mite
Historical Examples of bulb mite
All stages of the bulb-mite occur at the same time in infested bulbs, which become soft and rotten.
Garden Pests in New ZealandD. Miller
A mite very often met with by bulb growers is the bulb-mite (Rhizoglyphus hyacinthi), now found in most parts of the world.
Garden Pests in New ZealandD. Miller