Ask a Question forum→Brown dry patches on blueberries

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Northern California
May 26, 2020 3:45 PM CST
Hi there guys. Here are five of my first year blueberry plants. We've got the aphids under control right now they have diatomaceous earth on them they're watered deeply every 2 to 3 days. The days have been 55• at night and 90 during the day.

I'm noticing these brown dry patches on a few of the leaves of my plants. I looked it up and it looks most likely like a watering issue but my blueberries are evenly moist not muddy or wet, and they're in smart pots which should provide good airflow.

I looked up blueberry rust but these don't seem exactly like those spots. They just popped up though and it's definitely something that's trying to spread to the plant.

Thoughts and ways to fix it?
Thumb of 2020-05-26/Mercurianmad/784e79
Thumb of 2020-05-26/Mercurianmad/f3c751

Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Irises Lilies Hostas Ferns Composter Region: Belgium
Lover of wildlife (Black bear badge) Region: Europe
May 26, 2020 6:48 PM CST
To me this looks more like sunburn or heat stress, something in that regard.

I see your in California...the climate there might be too hot for blueberries since they're naturally found in more colder regions (the common blueberry types that is)

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