Subject: Please identify this bug
Location: Irvine, CA
August 22, 2017 1:33 pm
This bug is hanging out on my milkweed plant. Please help me identify it so I can get rid of it.
Thank you!
Signature: Marta Rosener

Large Milkweed Bug and Oleander Aphids

Dear Marta,
The large insect in your image is a Large Milkweed Bug, and though they suck juices from plants, they feed mainly on the seeds and seed pods which will reduce the number of viable seeds produced by the plant, but it will not harm the plant.  The tiny, yellow Oleander Aphids are another story and they are injurious to the young shoots of your milkweed plants, but it also appears that the Large Milkweed Bug might be feeding on the Aphids.  According to BugGuide:  “In the course of feeding these bugs accumulate toxins from the milkweed, which can potentially sicken any predators foolish enough to ignore the bright colors which warn of their toxicity.”

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Location: Irvine, California

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