Ask a Question forum→Jasmine bark splotches

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Redmond, Washington
pgirsh
May 17, 2020 7:57 PM CST
We have had this jasmine for over 20 years. It is getting new growth but has flat cream colored splotches on the bark and is spreading. What is it and how can I treat it? Photo attached. We live in Redmond, WA in zone 8. Thank you! Pami Girsh
Thumb of 2020-05-18/pgirsh/0733c4
Thumb of 2020-05-18/pgirsh/bbf94f

Name: one-eye-luke US.Vet.
Texas (Zone 8a)
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oneeyeluke
May 18, 2020 3:54 AM CST
Powdery mildew on the jasmine's stems look as if they have been sprinkled with a thick coat of baby powder. The powdery substance is made up of spores and is a type of mycelium. As the weather gets a little dryer it should go away. However, it the conditions stay wet for a long periods of time the mycelium will bloom and spread.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
Name: Rick R.
Minneapolis, MN, USA zone 4
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Leftwood
May 18, 2020 5:46 AM CST
I see no similarity to powdery mildew, except that it is white. There are many thousands of white fungi. Luke, what makes you think it is powdery mildew???
When the debate is lost, slander becomes the tool of the losers. - Socrates
Redmond, Washington
pgirsh
May 18, 2020 9:27 AM CST
Thank you for your replies! I don't think it's powdery mildew - I have seen that on other plants over the years but this is not "powdery ". There is nothing on the leaves and it takes my fingernail to try to scrape it off. It's only on the bark. I'm stumped. I sure would appreciate any other suggestions. This plant has always been spectacular and we'd hate to lose it. It does have the black mold that I always have to wash off every year but that's all it's ever had. Thanks so much for your help!
Redmond, Washington
pgirsh
May 18, 2020 10:01 PM CST
Thank you for your replies! I don't think it's powdery mildew - I have seen that on other plants over the years but this is not "powdery ". There is nothing on the leaves and it takes my fingernail to try to scrape it off. It's only on the bark. I'm stumped. I sure would appreciate any other suggestions. This plant has always been spectacular and we'd hate to lose it. It does have the black mold that I always have to wash off every year but that's all it's ever had. Thanks so much for your help!

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