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Q.What is causing my oregano to have brown spots

Zone Marshall MN | Anonymous added on June 28, 2020 | Answered

I don’t have any images to show right now because I just cut it short.

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Certified GKH Gardening Expert
Answered on June 29, 2020

If the brown spots have yellow halos it could be bacterial leaf spot. You did the right thing cutting it back to prevent transmission. If caught early, you can try treating it with a copper fungicide.

It also could be insect feeding damage. You can spray the leaves with Neem oil if you find any pests. Check under the leaves. Here is more info:



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