What are these round things on my plant?


Thanks for your amazing picture. Although I wasn’t able to find an exact match, they look like moth eggs. The black eggs with holes in them appeared to have been parasitized by a predator.

For an exciting adventure, put them in a glass jar, stem and all and see if they hatch. They will likely be very small caterpillars. You can raise a couple of them in another glass jar and feed them leaves of whatever plant they were on until they make a cocoon, then after a couple of weeks see what emerges. Butterflies and moths, as well as most other insects, are much easier to identify as adults. I gave my 93-year-old mother a caterpillar to watch when I was out of town, and she was so excited when it pupated, she texted me every couple hours. It really is a fun experience.

Was this page helpful?

Related Content from OSU Extension

Have a question? Ask Extension!

Ask Extension is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.