Sunflower Plants
Q.

disease of my swamp sunflower

Zone mrehead city NC 28557 | chandroth44 added on July 24, 2017 | Answered

Around my pond them there is a nice patch of Swamp sun flower.Last year they were almost destroyed by a disease.Brown patches appear and the leafs turn black as if something have burned them off.The plants survived and came back.But now the patches are coming back again.Any body knows what this disease is and how to treat it?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on July 26, 2017

A leaf spot disease could be a virus or bacterial disease.
I would suggest removing the plant and discarding.

https://www.gardeningknowhow.com/ornamental/flowers/sunflower/growing-swamp-sunflowers.htm

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