Pests and Diseases forum: Petunia disease?

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May 9, 2017 8:35 AM CST
Is anyone familiar with this condition and what can I do to treat it? The plant is a Petunia, Cappuccino Glow. This is the only series of petunias in my greenhouse that has this condition. Can't see it on any of my other series of petunias.

Thumb of 2017-05-09/leewald/f11f45

Name: Sue
Ontario, Canada (Zone 4a)
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May 9, 2017 8:59 AM CST
From the picture I was tossing up between a virus and a nutrient issue. Are you giving them a fertilizer that has all the essential nutrients, including micronutrients? I'm not sure the pattern is right for a virus but it doesn't look exactly like any of these nutrient deficiencies of petunia either.

If you have a lot of petunias in your greenhouse and therefore a significant financial involvement, you might want to have your local Extension office look at this (assuming you are in the USA). I know some petunia cultivars can be rather chlorotic early in the season but these look to be more advanced in growth than I have seen it.

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