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Edmonton, Alberta Canada
Jul 17, 2017 6:06 PM CST
This is my raspberry patch that has tan coloured streaks on the leaves. What is causing this? Is it a fungus, or some kind of worm or bug that has invaded the leaves? Do I need to buy some
diatomaceous earth to put on the soil for next year? Next year I will thin out the canes and make more breathing room, but first I need to know what this is, and what's causing the leaves to turn this colour. The strawberries are very small mid. July, 2017 in Alberta right now. Do you have some advice for me? Thank you.
Maryland (Zone 7a)
Jul 18, 2017 5:24 AM CST
If you have wild blackberries around, they can transmit mosaic diseases to your raspberries.