Q.What might be causing this on my oregano
It looks like something is maybe eating the top layer of the leaf. Virtually all of the mature leaves have this, but not necessarily the new small leaves.
Downtoearthdigs
Answered on June 28, 2015
We didn't receive an image.
Here are a couple of links for you, including some natural pesticides that you can use on your herb plants.
https://www.gardeningknowhow.com/edible/herbs/oregano/learn-how-to-grow-oregano.htm
Was this answer useful?
00