noun
injurious to onion plants and sometimes tobacco
• Syn: ↑onion louse, ↑Thrips tobaci
• Member Holonyms: ↑genus Thrips
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noun also onion louse : a minute widely distributed thrips (Thrips tabaci) that is often very injurious to the foliage of onions and in some regions to tobacco
Useful english dictionary. 2012.