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DIEHARD Ecto Injectable is a powerful ectomycorrhizal injectable inoculant designed for root injection or soil drench. It is ideal for trees like oak, pine, birch, spruce, and others that form ectomycorrhizal associations. This formulation contains beneficial ectomycorrhizae, humic acids, sea kelp, yucca plant extracts, and bacteria to promote rapid root development, increase nutrient uptake, and improve drought resistance. Use for tree establishment or stress recovery to support healthy root systems, improved survival, and enhanced tree performance.
Price range: $41.18 through $1,279.41
DIEHARD Ecto Injectable is a specialized ectomycorrhizal injectable inoculant developed for trees that form symbiotic relationships with ectomycorrhizae. This root injection and soil drench formula enhances tree health, supports stress recovery, and promotes sustainable growth in landscapes and forests.
It features carefully selected ectomycorrhizal fungi strains that quickly colonize roots, improving water and nutrient uptake while strengthening plant resilience. The formulation also includes humic acids, soluble sea kelp, yucca plant extracts, and a robust beneficial bacteria package—all working together to improve soil biology and root development.
Ideal for trees such as oak, pine, birch, willow, spruce, fir, larch, and chestnut, DIEHARD Ecto Injectable boosts plant survival, rooting, flowering, and yields. It also reduces plant loss, fertilizer use, pesticide dependency, irrigation frequency, and drought-related damage.
This product is suitable for newly planted trees, established trees in stress recovery, and long-term plant health management. It is especially useful in urban forestry, reforestation, and high-value landscape settings where root-zone biology matters.
DIEHARD Ecto Injectable is the industry’s first complete ectomycorrhizal injectable inoculant, trusted by professionals seeking natural, science-backed solutions to tree and soil health. It delivers long-term benefits with fewer chemical inputs—promoting more resilient landscapes, healthier trees, and sustainable success.
Nursery Drench:
Each pound treats 100,000 seedlings. The best application method is a 2 step process. Apply 1-2 weeks after sowing just as roots have developed to the sides of cells.
Mix with sufficient water to apply as a drench with sprayer. Care should be taken to ensure that spores applied are drenched into the media to the level of the roots. Second application 6 weeks before lifting.
One week before and after avoid the use of phosphate fertilizers. Avoid the use of high phosphorus fertilizer as this treatment would have a negative effect on Ectomycorrhizal colonization. Organic nitrogen fertilizers are recommended.
Established Trees:
Mix at the rate of 1/2 lb. to 100 gallons of water. Inject into the ground 6-8 inches on a 2 1/2 to 3-foot grid pattern from the trunk out to the drip line and beyond if possible.
Apply 1-2 quarts of solution per injection site. Use up a solution by the end of the day.
Stress Recovery – Small and newly planted trees and shrubs::
Inject along with the original root ball every 1-2 feet and on a grid pattern for established trees.
Your order will typically ship within 3-5 business days. Please note that weather conditions and carrier delays may occasionally affect shipping times. If your item arrives damaged, please refer to our return policy for assistance.
