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Raspberry leaves burning

Posted by ahajmano Sun 23 (My Page) on
Fri, Mar 1, 13 at 14:27

Hello all,

came home from work yesterday, and I see my Heritage raspberry leaves that just started growing again last month, are burning. a few notes:

- The damage happened in the course of 1 day
- Plant should have sufficient water
- Weather has been very dry recently (17% humidity during the day)
- temperatures ranged from 80 in the peak day, to 40 at night.

Any ideas? Only my Heritage raspberry seems to be affected thus far.

Follow-Up Postings:

RE: Raspberry leaves burning

Have you fertilized?

RE: Raspberry leaves burning

I have not, but the top soil is 50% native, 25% manure, 25% compost. Should have enough nutrients in there....

RE: Raspberry leaves burning

I was more wondering if it was fertilizer burn.apparently not:)

There are a few things that can cause the edges to burn.. Potassium deficiency, Water stress or roundup drift. I think some of the cane diseases can do that as well. How long have they been in that spot?

RE: Raspberry leaves burning

About a month. I got it in bare root.

RE: Raspberry leaves burning

  • Posted by ericwi Dane County WI (My Page) on
    Fri, Mar 1, 13 at 22:00

Bare root stock is subject to this issue during the first 6 months after planting. What happens is the plant leafs out, and begins to photosynthesize sugars, making demands on the root system for water and nutrient. Apparently, roots take longer to get established than leaves, so the roots can't keep up with the demand, and the result is what you see in the photo. One partial solution is no fertilizer during the first three or four months. Another partial solution is to partially shade the plant, so it receives less sunlight, for a week or two. I have had similar problems with blueberry transplants.

RE: Raspberry leaves burning

Rule out any herbicide sprays on yours or adjacent properties; root situation mentioned above is more likely.

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