Tips turning brown on Bountiful Blue blueberry?

mossback1971June 29, 2011

I have 6 blueberries in Air-pots using the 5.1.1 mix. I'm using Dyna-Grow Foliage Pro with PH corrected water at 4.5-5.0. They are in full sun. All the new growth burned brown and leaves are burnt? I'm trying to figure out how to post picks! thank you

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edweather(Zone 5a/b Central NY)

Here's a link that I have saved in my favorites on how to post pictures.

http://faq.gardenweb.com/faq/lists/pepper/2002072150000611.html

    Bookmark   June 29, 2011 at 1:00PM
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prestons_garden(9B SZ 22 HZ 6 SoCal)

I would have to say you are probably over fertilizing and or not flushing enough with plain water.

    Bookmark   June 29, 2011 at 8:24PM
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groem(6)

The problem is likely because dyana-gro uses nitrates for its nitrogen. Blueberrys do not like nitrates, you need to find another fertilizer that uses urea for its nitrogen.

    Bookmark   June 29, 2011 at 11:48PM
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prestons_garden(9B SZ 22 HZ 6 SoCal)

groem is correct, I forgot about the nitrates. You can also find an Ammonium sulfate fertilizer which also has sulfur to lower your Ph.

    Bookmark   June 30, 2011 at 12:38AM
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edweather(Zone 5a/b Central NY)

I was going to mention the nitrate issue, as you are both correct in suggesting that nitrates are not the best for a fertilizer source. The reason I didn't mention it is because although FP is probably not the best source of fertilizer for blueberries, I've read posts from people that have used FP on blueberries with decent results. A picture would help. I have a couple of blueberry plants in containers. I's odd that just the new growth would die IMO. Maybe try posting the ? in the fruit forum also.

    Bookmark   June 30, 2011 at 1:12PM
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