Many gardeners will tell you that aphids are the bane of their existence. According to a new study from the University of Florida, these tiny pests also pose problems for the iconic monarch butterfly.

Also known as oleander aphids, milkweed aphids are not native to North America; they originated in the Mediterranean region. In their native land, these aphids primarily fed on oleander plants, but in ...

Q: I've wondered about purchasing beneficial insects for my yard. I'm particularly interested in ladybugs to combat aphids on milkweed that I plant for butterflies. Machele McCance, Walton County A: ...

I am having a major invasion of yellow aphids this year on my swamp milkweed! The problem is my yard is a certified monarch habitat, and I don't want to risk killing butterfly caterpillars. Do you ...

Fall is coming right up and all of those end-of-season projects are looming. If you’ve got questions, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension ...

Los Angeles reader Millicent Stoller wrote to our SoCal Garden Clinic saying she was trying to plant for monarch butterflies. Stoller said she was growing two milkweeds, but both had become inundated ...

Journal of the Kansas Entomological Society, Vol. 86, No. 3 (JULY 2013), pp. 193-205 (13 pages) The oleander aphid, Aphis nerii Boyer de Fonscolombe, feeds on members of the Apocynaceae family. In ...

When oleander aphids infested tropical milkweed, monarch butterflies laid fewer eggs on the plant, and the caterpillars developing on those plants were slower to mature. Many gardeners will tell you ...