General Information

PHC Ecto-Injectable is designed specifically for ecto-mycorrhizal fungi tree species. PHC Ecto-Injectable contains a cocktail blend of ectomycorrhizal fungi, yucca plant extract and includes PHC BioPak with its beneficial rhizosphere bacteria. PHC Ecto-Injectable introduces spores of selected species of ectomycorrhizal fungi to the root zone. These fungi colonize the roots and can:

- 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 Ecto-Injectable also introduces six species of beneficial rhizosphere bacteria which can improve soil fertility by:

- Fixing atmospheric nitrogen

- Solubilizing mineral phosphorus

- Biodegrading soil organic matter, releasing mineral nutrients


Ectomycorrhizae benefit conifers and hardwoods, such as: Pine, Beech, Spruce, Birch, Hemlock, Hickory, Basswood (Linden), Pecan, Larch, Willow, Cypress, Oak, Eucalyptus, Cedar, Chestnut and Fir.

For other tree species, use PHC Injectable for Trees, as it contains both endo and ectomycorrhizae plus formononetin, a mycorrhizal stimulant that enhances root colonization of endomycorrhizae.

Limitations, Restrictions, and Exceptions


Mix two packets per 100 gallons of water, agitate thoroughly, inject into root ball and outside edges under 150-200 psi maximum with a soil probe at a rate of 1 quart per probe site. Avoid hot injection systems.

Refer to the chart in the label regarding options and specific application rates for B&B trees.

Note: Root ball diameters are based on tree size according to American Nursery Standards.