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Diplocarpon Rosae fungus help 3 years 2 months ago #65494

  • skroh24
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Hey everyone,

I have a wisteria that I planted from seed back in November of 2020 is growing great. Very green leaves, nice green stem, and is starting to get bark on the bottom of the stem near the base of the soil. I noticed some of the leaves are getting blackish/yellowish spots on them. Looked it up and found out its a fungus called Diplocarpon Rosae. Anyone have any advice on how I can treat this?

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Diplocarpon Rosae fungus help 3 years 2 months ago #65495

  • Tropfrog
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You keep it outside as it should?

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Diplocarpon Rosae fungus help 3 years 2 months ago #65509

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yes outside in a spot that gets a lot of sun. Only water when soil is dry an inch below the surface.

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Diplocarpon Rosae fungus help 3 years 2 months ago #65510

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Are you in the southern hemisphere? That species should not have any leafs right now in the northern hemisphere.

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Diplocarpon Rosae fungus help 3 years 2 months ago #65536

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Im in the northern hemisphere. Its still a seedling. Not sure it that matters or not but is it bad if it still has leaves on it?

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Diplocarpon Rosae fungus help 3 years 2 months ago #65542

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Decidious trees loose the leafs in authum/winter and grow new in spring. When that is in your area I cannot tell, just look around you, what are the native trees doing right now?

If it is last years leafs you are worried about, dont be. Just let them drop. Collect and dispose just to be safe. If it is this years fresh leafs, then you might have a problem. But I doubt it. Way to early for most parts of northern hemisphere.
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Diplocarpon Rosae fungus help 3 years 2 months ago #65545

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Ok cool! Yeah the leaves on it right now are last years. I will be sure to toss them when they fall off. Thanks for your help!

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