PK Pro Nutriboosters 0-36-26 helps trees recover from drought, transplant or other stress damage by promoting root, stem and vegetative growth.

Davey Tree Expert Co.

Arbor Green PRO is a slow-release fertilizer that contains synthesized organic nitrogen fortified with plant-strengthening polyamino acids.

Doggett Corp.

Offering slow-release tree fertilizers that contain macro and micro elements, humates, microbes and organics. Soil amendments also available.


Lutz Perfect Spikes restore and maintain healthy green growth. They contain a chlorophyll-producing mix of iron, manganese and sulfur.


Offers SOYAPLEX-sp, a spray-able powder fertilizer derived from soybeans, and T DOWELS with nitrogen, phosphorus, potassium and Trichoderma fungi.

Plant Food Co.

AdamsEarth organic soil amendment improves root mass, soil structure and nutrient uptake. P.F.C.’s 16-4-5 liquid fertilizer contains slow-release nitrogen.

Plant Health Care

Plant Health Care offers arborists a complete line of biologically enhanced products for subsurface fertilization, vertical mulching and plant stress management.

Vitamin Institute

Vitamin Institute’s SUPERthrive contains 50 vitamins and hormones that can help prevent the loss of trees.

Application Equipment


The QUIK-jet tree injection tool, designed for low-dose applications, offers fast delivery and can be used as a diagnostic tool to assess tree health and uptake.


The Direct-Inject QC tree injection unit requires no drilling, minimizing wounding and allowing multiple or annual treatments without tree damage.

Green Pro Solutions

Sprayers offer various pump/engine combinations, Hannay electric-rewind reel, 300 feet of hose, 30 or 60-gallon mix/application tanks and more.


Specializes in tree sprayers from pickup-mounted skid sprayers to complete truck systems. All tanks available with pump capacities up to 64 GPM, 700 PSI.


The Mighty Mac PS350T-10 sprayer features a Briggs & Stratton engine; 10-GPM, twin-piston pump; 50-gallon polyethylene tank; and internal jet agitator.

Minnesota Wanner

Specializes in multiple-compartment, stainless steel sprayers equipped with mechanical agitation. Custom-built and stock models are available.

Northeastern Arborist Supply

Custom sprayers—choose tank size, tank type (poly or fiberglass), engine hp, type and size of regulator, reels, hoses, feeder tubes and spray guns.


Roll-off spray bodies, made of all-welded aluminum, feature fully hydraulic loading and unloading, locking roll-up doors and custom interior shelving and storage.


The 421S chest-mounted spreader features a 20-pound-capacity hopper with cap, fingertip levers, cross-shoulder strap and fully enclosed, gearbox-driven agitator.

Spraying Devices

The Turf N’ Tree Sprayer combines a Honda GX or Kohler Command Pro engine with a 20 GPM Comet diaphragm pump and mechanical agitation system.

Don’t miss the October issue of Tree Services, where you’ll find a guide to Aerial Lifts, Cranes and Grapples, and a TCIA Show Preview.