We have used technical grade phosphoric acid . we purchase it from a greenhouse supply company in our area .
Doug and Leslie 519-738-4819 The Fruit Wagon - Quality Fruit and Flowers in Season www.thefruitwagon.com facebook-logo1twitter-logo From: [email protected] [mailto:[email protected]] On Behalf Of Dean Henry Sent: Thursday, May 15, 2014 1:18 AM To: Apple-crop discussion list Subject: Re: [apple-crop] lowering ph in spray solution Food grade citric acid does a nice job. Use a pH meter to determine amount and recheck, as seasonal changes occur. We buy in 50 lb bags. Regards, Dean, Sent from my iPad On May 14, 2014, at 9:04 PM, "Mark Evans" <[email protected]> wrote: The water for spraying on our farm is currently 7.7. We have used vinegar, Tri-fol, Li-700 and several other products to reduce ph. I would like to know what products list members prefer to accomplish this task without using a spreader-sticker/penetrant. I’ve considered using anhydrous citric acid but have found little horticultural data on its use. Thankyou, Mark A. Evans Frankfort, Michigan _______________________________________________ apple-crop mailing list [email protected] http://virtualorchard.net/mailman/listinfo/apple-crop _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4577 / Virus Database: 3950/7496 - Release Date: 05/14/14
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