Ask a Question forum→Blueberries with reddish brown spots on leaves

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Northern California
May 20, 2020 7:21 PM CST
OK guys this is the third post I think saying that I have something wrong with my blueberry plants and everybody always tells me that the plants look fine.

The entire group of leaves, new growth and old of my five blueberry plants have begun to developed red brown spots on them. Is this some type of fungus? I have a systemic fungicide that I can use on it if it is. I just wanna know before I spray all the plants.
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
May 20, 2020 7:38 PM CST
I don't grow blueberries but have you looked into Blueberry rust? Just a thought...
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
Hummingbirder Birds Organic Gardener Dog Lover Cat Lover
May 22, 2020 3:36 AM CST
Give them some time and keep the water down to a minimum. That's not blueberry rust, but it may be from the cool Northern California nights. They will get better in the summer if you don't over water them. Phosphorus is less mobile when the temps are cold and will show up in the leaves as red or purple tent. I never use any kind of systemic fungicide on anything I eat or give away. I hope that helps.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
Name: Big Bill
Livonia, Michigan (Zone 6a)
American Orchid Society Judge
Region: United States of America Critters Allowed Growing under artificial light Echinacea Hostas Region: Michigan
Butterflies Lover of wildlife (Raccoon badge) Orchids Cat Lover Birds Bee Lover
May 22, 2020 3:44 AM CST
I agree 110% with Luke. I would never spray something I was planning on eating.
Rodney Wilcox Jones, my idol!
Businessman, Orchid grower, hybridizer, lived to 107!
Northern California
May 22, 2020 5:56 AM CST
Thank you. Is that what those red spots are? Phosphorus deficiency? If you click on the close up of the pictures you can really see them. We've just had over a week of heavy rain in May, for some reason, with cloud cover. The sun is back now so hopefully that helps them out.

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