nigra scale

noun nig·ra scale \ˈnigrə-\

Definition of nigra scale

  1. :  a coccid (Saissetia nigra) that is a serious pest on cotton, coffee, and other plants of warm temperate regions

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Origin and Etymology of nigra scale

New Latin nigra (specific epithet of Saissetia nigra, species of coccid), from Latin, feminine of niger black, dark

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feeling or affected by lethargy

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