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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comMy Dahlias this year have performed well and I have been pleased with them however there have been a few problems that I have not encountered before. Can you help me with the following issues: Some of my Dahlias seem to have suffered from dying leaves throughout the season even though the plants themselves have performed well with many good sized flowers repeating on a regular basis( see photo) Also a needed to remove one plant as it went from very healthy flowering well to a very unhealthy state almost overnight. The second photo just shows a Dahlia that has been flowering well but now seems distressed and has stopped flowering. Can You help with these problems please.
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URLs in this post:
[1] https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/dahlia-flower-diseases.htm: https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/dahlia-flower-diseases.htm
[2] https://extension.psu.edu/dahlia-diseases: https://extension.psu.edu/dahlia-diseases
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1 Comment To "Black Dahlia Leaves"
#1 Comment By GKH_Susan On 10/11/2021 @ 7:08 pm
It sounds like wilt or viral diseases. Be sure to buy resistant varieties. Here is more:
https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/dahlia-flower-diseases.htm [1]
https://extension.psu.edu/dahlia-diseases [2]