Knowledgebase
What insect is this? #879130
Asked July 28, 2024, 3:49 PM EDT
Muskegon County Michigan
Expert Response
(Plant & Pest Diagnostics-MSU) and email them photos for identification. If the bugs are still in your garden try for some better detailed photos with the following instructions:
GRASS PHOTOGRAPHY TIPS FOR ID-MSU
Spraying a strong jet of water would probably knock many of the insects off the plants. Another option might be to spray a soap solution all over each plant to kill the insects.
More info on soap solutions here:
https://extension.umn.edu/yard-and-garden-news/coming-clean-soap-garden
https://hgic.clemson.edu/factsheet/insecticidal-soaps-for-garden-pest-control/
I happened across reports of corn leaf aphid, and i think that's what you have on your plants. Apparently, they came up on storm winds from Indiana over the weekend. If you do not have corn in your garden, they will not have a host and will disappear on their own.
Here's a link to an MSU Vegetable Crop Report from this week that mentions them.