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PHC Mycorrhizae Injectable for Trees 3.5lb bag

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$ 365.05
> 10
$ 357.74
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# MT915
In Stock
Weight: 3.80 lbs

For established trees and shrubs in high-stress situations!

Working to increase the absorption ability of the roots, mycorrhizae aid in the absorption and transfer of water and mineral nutrients from the soil to the plant. Also introduces 6 species of beneficial bacteria which improve soil fertility by: nitrogen-fixing, phosphorus solubilizing and biodegrading soil organic matter, and releasing mineral nutrients. Includes humic acid, sea kelp extract, soluble yucca plant extract, nutrients, amino acids, proteins, vitamins and sugars. Effective on all trees and shrubs except Rhododendrons, Azaleas, and Mountain Laurels. Avoid hot injection systems, as prolonged heat above 115 degrees kills the spores. Application rate for established trees and shrubs: 1 quart on 2.5' - 3' centers. Combine one packet "A" and one packet "B" with water to produce 50 gallons of injectable. Each unit contains enough packets to create 350 gallons of injectable solution.NOTE: THIS REPLACES PHC'S MT916 WHICH HAD A LOWER QUANTITY OF PACKETS TO CREATE SOLUTIONS; THIS MAKES SEVEN, THE MT916 MADE FOUR.


Avoid hot injection systems as prolonged heat above 115 degrees kills the spores. Each box contains 7 "A" packets and 7 "B" packets that you mix together to make your solution. Contains both endo- and ecto-mycorrhizal fungi.


Manufacturer only guarantees contents will comply with what is stated on the label. No other warranty is implied.

Application Rates

One quart for 2.5' - 3' centers. One packet "A" and one packet "B" combined produce 50 gallons. Each bag has enough packets to produce 350 gallons.

Review Summary (Based on 2 Reviews)

5 Stars

Great Product!!! wrote

This spring I was called in to treat 16 35' Douglas Fir trees that had suffered from winter desiccation and showed signs of needle cast. After treating for the needle fungus, I recommended the trees receive a deep root feeding using this PHC product with a light fertilizer application as well. Upon inspection of the trees the other day (4 months after treatment) they all showed significant growth between nodes from previous years, and a deep healthy green color. The customer is quite happy with the results. I highly recommend the use of this PHC product on stressed and/or valuable landscape trees.

5 Stars

I'm a Believer wrote

Thsi product provides such a vital boost to trees in stress conditions and aides tremendously in uptake and transportation. Within 90 days of application we saw 2-3' of new growth on oaks that have been languishing for years!

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