Pythium ? Fusarium? none of them? clock is ticking, going nuts

su7yJin-9KI · April 2023

hi, I do have many kohlerias at home.Gesneriads. Slowly all get the same problems. Red/brown/violet? parts of stem, between nodes. Wrinkling off leaves inwards, yellowing leaf, root rot. Stall in growth, buds drying? dying for sure. Did not notice that it could be a fungus...I thought overwater, too dry, too hot. I am afraid its none of them and its a fungus, spreaded to almost all of them.

Do I have to know the name of the fungus or is there a multi fungicide, killing them? Stem comming out of soil is not dark, it is between the stem. Pls any advice? I think I have no more time to loose. No pests. Orange spots are cinnamon. I cut the stem off. One at the reddis part, the other one at the green. The violett? part looks not good, fussarium? even the smallest have this issue. thanks

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thanks

GardenerSuze · April 2023

@su7yJin-9KI Are you a member of the RHS as this looks like a very complex problem. Sometimes it is not possible to comment only a scientific lab can give an answer.

su7yJin-9KI · April 2023

Thank you no member. I am in vienna seeking for help online. No one can say what it looks like, probably, hint? I am sure so many have dealed with fungus before.
What about fungicide? Do I need a special one suitable for this kind of fungi?
Lab... Well I am not Rockefeller.

GardenerSuze · April 2023

@su7yJin-9KI Fungicides are best avoided as they may be detramental to human health especially if used in a confined space.

I was more concerned with the urgency of your post, did not see at first that you are in Vienna. In the UK with an RHS membership, you can have plants tested in a lab as part of your membership for free. Hence my comment.
No other posters have added to my comments which may indicate what I have said is in fact good advice. It is also possible that they are also unable to confirm conclusively what you are dealing with.

bertrand-mabel · April 2023

How about trying to get help from the botanical garden in Vienna?

JennyJ · April 2023

bertrand-mabel said:

How about trying to get help from the botanical garden in Vienna?

Certainly worth asking. It's a nice little botanical garden. I visited once when I was in Vienna on a business trip and had a few hours to kill, and I was lucky enough to arrive just in time for a guided tour in English.

su7yJin-9KI · April 2023

thank you so much. Botanical garden, was looking for whom I could ask here. I will try them also. I wished I would be in UK, really. If someone would identify that fungus, though I don´t think, they would help private person, it would costs many Euros. Maybe 1000?
I dont know. They suffer, I suffer. Checking many times a day. I am so in love with them :..(

I have to use a fungicide, there are no options, do I miss something`GardenerSuze? Nothing could help otherwise. Actually they are made exactly for that reason, so it should not harm me? Though they are in living room, like me...one more thing to bother...I won´t toss them.
Will write immediatly to the botanical garden. Thank you.

su7yJin-9KI · May 2023

thank you. I got an answer from them. Plant was stressed somehow, to much heat or cold, therefore curling the leaves. Everything ok, makes me sad though, how they look. They stay like that. thank you all.

GardenerSuze · May 2023

@su7yJin-9KI I am so pleased you have got some help. When things go wrong with our plants and we don't know what to do we can feel stressed too! I hope your plants soon improve.

Pythium ? Fusarium? none of them? clock is ticking, going nuts

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