Why did the petunia leaves turn yellowish white? #368679 - Ask Extension

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Why did the petunia leaves turn yellowish white? #368679

Asked October 08, 2016, 1:10 PM EDT

I planted two honeysuckle plants near an archway. One looks verdant and healthy. The other stunted. Both received same amount of water. What could be wrong?

Wright County Minnesota

Expert Response

We'd need to see the plant or sharp photos to be sure, but what you have described suggests that it may be affected by powdery mildew. However, chlorosis and spider mite damage could also account for the symptoms you mentioned.

See if the plants in the photos at the following websites resemble yours.  Perhaps you determine what caused the problem.

Go here to learn about chlorosis:
http://themountaineer.villagesoup.com/p/chlorosis-is-an-easily-solved-problem/1029967

Go here to learn about powdery mildew and spider mites
http://www.extension.umn.edu/garden/diagnose/plant/annualperennial/petunia/flowersdiscolored.html




Bob Bystrom Replied October 08, 2016, 5:14 PM EDT

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