General Information

PHC Injectable for Trees is a combination inoculant containing mycorrhizal fungi (both Ecto- and VAM) and beneficial rhizosphere bacteria. It is formulated for application using standard soil injection equipment.

The mycorrhizal fungi in PHC Injectable:

- Increase absorption and transfer of water and mineral nutrients from the soil to the plants

- Help plants mitigate adverse environmental conditions such as drought, soil salinity, and extremes of soil pH.

PHC Injectable for Trees also introduces six species of beneficial rhizosphere bacteria which improve soil fertility by:

- Fixing atmospheric nitrogen

- Solubilizing mineral phosphorus

- Biodegrading soil organic matter, releasing mineral nutrients

Finally, PHC Injectable contains Myconate, a proprietary isoflavone (formononetin) that increases root colonization by native or introduced VAM fungi.

Limitations, Restrictions, and Exceptions


Mix one “A” packet and one “B” packet in either order per 50 gallons of water to treat 1250 square feet. Agitate the mix thoroughly before application. Spray tanks with good agitation are recommended. Inject the mixed product under cool pressure (150-200 psi maximum) into the upper 8 to 10 inches of the root zone with the use of a soil probe at a rate of 1-quart per injection on 2.5 to 3 foot centers. At a minimum, treat the root zone under the canopy and when possible, beyond the drip line. Avoid hot injection systems, as prolonged heat above 115° F can kill the spores.

Not recommended for use as a soil drench.

Mixed solution should be used within a 12 hour period.