
Wedgle
Direct-iNject
Tree Injection System
The first and only no-drill tree trunk injection method.
Find a DistributorExplore the Wedgle System
Need the Parts Chart?
Reference diagram for injector components, tips, and replacement parts.
Why No-Drill Injection Works
Prevent drilling damage
With no drilling needed, the Wedgle Direct-Inject System prevents long-term wounding, protecting tree health and vitality.
Increase effectiveness
The Wedgle Direct-Inject unit injects chemical directly into the cambial zone, right where the tree can use it. You get proven results from less chemical, lowering cost per tree.
Treat almost any tree in 5 minutes or less
No power, drills, or pumps needed. There’s no guarding trees, no waiting for uptake. You’ll treat more trees in less time, reducing labor costs and increasing profits.
Don’t Drill… Direct-Inject

2. Chemical is injected into the cambial zone where the tree can easily use it. (dyed red for visibility)
Direct-Inject protects trees…
- Inject chemical through bark only without damaging sapwood (chemical in cambial zone dyed red for visibility).
- Inject chemical directly through the bark without drilling. No air enters the sapwood, so chemical is readily absorbed.
- Vascular system is undisturbed, maintaining nutrient movement.
- Chemical is placed in the cambial zone, where it is used most effectively — you’ll see improved results from less chemical.
- Multiple or annual treatments can be made without injuring the tree.

4. Drilled holes allow pest and disease entry.
Drilling damages trees…
- Drilling wounds compartmentalize, disrupting nutrient movement.
- Drilling for injections allows air into the sapwood, disrupting translocation and reducing chemical effectiveness.
- Air entering the vascular system disrupts nutrient movement.
- Drilled holes often extend beyond active layers, so chemical is lost in non-active wood where the tree cannot use it.
- Drilling wounds cause permanent damage. Repeated drilling can seriously impact tree vitality.



