Myzus ornatus Laing Violet aphid

The violet aphid is an entirely parthenogenetic, polyphagous species, which attacks various herbaceous plants. It is often a persistent pest of house plants and of ornamentals grown in glasshouses but is rarely found on outdoor plants. Apterae are very small (1.0-1.7 mm long) and pale yellow to greenish, with the dorsal surface marked with darker green or brown; the lateral tubercles on the head are well developed and strongly convergent. Although living singly, rather than in compact colonies, host plants become extensively contaminated by sticky hon-eydew and cast-off nymphal skins. The aphids are also virus vectors.

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