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nafex - Re: [nafex] KDL for Frost Protection

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  • From: Dan Nave <nave1@comcast.net>
  • To: nafex mailing list at ibiblio <nafex@lists.ibiblio.org>
  • Subject: Re: [nafex] KDL for Frost Protection
  • Date: Sun, 08 Apr 2012 20:35:54 -0500

Here is an article about KDL, with some quotations from Bob Purvis.

<http://www.agro-k.com/index.php?option=com_content&view=article&id=68%3Akdl-frost&catid=3%3Anewsflash&Itemid=18>

Dan

On 4/8/2012 7:42 PM, Dan Nave wrote:
The weather forecast for freezing temperatures this next week in the upper
Midwest changes daily,
but it seems that it will happen on Monday and Tuesday night.

Because of the early spring and the early flowering and growth on many plants
I want to avoid having
the frost kill off all the flowers and juvenile fruit. It seems that most of
my plants have
flowered or are flowering right now. Apricots are pretty much done
flowering, Nanking cherries have
only a few blooms left, Plum is in mid bloom, Red and Black currants as well
as Jostaberry are in
mid bloom, Carmine Jewel Bush Cherry is starting to bloom, Shadbush
Serviceberry is near end of
bloom, and Regent Serviceberry is just ready to bloom.

Bob Purvis has noted in the Apricot Interest Group that KDL (Potassium
Dextrose Lactose) is a
potassium spray which is supposed to give up to 7 degrees of additional
protection during a freeze.
In spite of a very, very strange Indian woman who answered the phone at
Agro-K in NE Minneapolis and
didn't want to tell me what the company hours were because she wanted to
leave early on Good Friday,
I managed to get a gallon of KDL for $22 plus tax. The expert there
mentioned Bob Purvis and
recommended that we use 3 ounces per gallon and adjust the pH by adding 3
ounces of household white
vinegar.

I had already gotten a Stanley brand 4 gallon Backpack Sprayer which is a
little awkward to hoist
around but once you get it on your back it is incredibly convenient and easy
to use. So, today I
sprayed all the plants mentioned above with the KDL and will see how well
everything comes through.
Probably sprayed a bit heavier than I needed to, but...

Dan
Zone 4a 4b St. Paul, Minnesota
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