Raspberry leaves burning

ahajmano(sunset 23, Mission Viejo CA)March 1, 2013

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.

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bamboo_rabbit(9A Inverness FL)

Have you fertilized?

    Bookmark   March 1, 2013 at 5:24PM
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ahajmano(sunset 23, Mission Viejo CA)

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

    Bookmark   March 1, 2013 at 6:12PM
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bamboo_rabbit(9A Inverness FL)

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?

    Bookmark   March 1, 2013 at 7:14PM
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ahajmano(sunset 23, Mission Viejo CA)

About a month. I got it in bare root.

    Bookmark   March 1, 2013 at 8:39PM
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ericwi

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.

    Bookmark   March 1, 2013 at 10:00PM
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larry_gene

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

    Bookmark   March 1, 2013 at 10:50PM
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