2 Steel drill bits 4.5mm (11/64”).
2 Chemjet 20ml Injectors
200ml Potassium Phosphite (makes 1300ml injectable fluid)
If you intend injecting a large number of trees then to minimise your time we would recommend you may wish to purchase sufficient injectors to do a tree at a time.
The number of Injectors needed to inject a tree of a specific diameter in one go (at 8" spacing) is
1ft - 5 injectors
2ft - 10 injectors
3ft - 14 injectors
4ft - 19 injectors