Thrips ( Western flower thrips, Onion thrips ), " Frankliniella occidentalis ", " Thrips tabaci ", if population is high leaves may be distorted; leaves are covered in coarse stippling and may appear silvery; leaves speckled with black feces; insect is small ( 1.5 mm ) and slender and best viewed using a hand lens; adult thrips are pale yellow to light brown and the nymphs are smaller and lighter in color.
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