CLOSED: Bugs infesting the back of my sunflower heads

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coleuslove Sunnyvale, CA Jun 11, 2014

These are dark, blackish, plentiful, and all over the backs of my sunflower heads! Are they harmful? Should I do something? What are they? I didn't see them moving, but there sure are a lot of them. Thanks!

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Flapdoodle Minot, ND Jun 11, 2014

These are aphids (plant lice) - try washing them off with a strong stream of water from a garden hose or an application of an insecticidal soap...

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coleuslove Sunnyvale, CA Jun 12, 2014

Thanks flapdoodle, I didn't think aphids looked like this but I guess they do. I'll do what you said. We have ladybugs here and there, that should help too right? I'm wondering how we have this many aphids with ladybugs around.

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Flapdoodle Minot, ND Jun 13, 2014

Some species of aphids can reproduce so rapidly (basically being born pregnant) as to outstrip their predators...

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coleuslove Sunnyvale, CA Jun 14, 2014

Thanks, that's helpful insight! Thanks again for your time!

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