Blackberry Leaf Darken - What can this be?

General Fruit Growing
#1

Hi,

This is a Freedom blackberry potted about 2 months ago. At first I saw some new leaves edge browning, I tipped those off. Yesterday, I move the pot to a more sunny location. some leaves start to burn. I have been googling still can not figure it out what this is.
Sun burn? Chemical burn? (neem extract spray) or type of fungal diseases (we did not rain for 2 weeks, SE NY)

Please feel free to share your ideas

Thank you

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#2

Given it was just moved to more sun it’s probably sunburn. I have seen oil burn look something like that.

1 Like
#3

Thank you Fruitnut.

#4

Another 2 Blackberry plants new growth / leaves curl up, crisp and brown edge. I checked Berry Diagnostic Tool @ Cornell. Still not sure what this is. No aphids / any insect found on the leaves. No herbicide used (they are in containers) Is this going to be an issue?

Thank you

#5

Some of mine were doing that. It’a been really hot and dry here (Texas) and I have attributed it to that. They seem to really like water, moreso than I would think necessary as blackberries grow wild here in the hot and dry. I think these PAF’s sulk unless the climate and moisture is EXACTLY what they want it to be. It has not been anything that has spread.