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oliver75_gw

Brown spots on leaves (see pic)

19 years ago

I have 2 large dahlias in pots on my patio. The other day I noticed these spots on them. They start out as a yellowing and turn brown and crispy. They seem to be mainly on the lower, older leaves. What could have caused this? Sunburn? Bugs? Too little or too much water?

Here is a link that might be useful: {{gwi:1083380}}