Prototype Equipment for Commercial Pressure-Injection of Aqueous Growth Regulators into Trees

Abstract

An equipment system was developed for injection of a low vol of coned aqueous growth regulator solution into shade trees for sprout-regrowth control. The injection equipment is air powered and injects a precise vol into each injection site. Vol and pressure can be easily adjusted. The injectors are small diam and, therefore, easily force fitted into drilled holes and easily removed by hand. Tree disfigurement is not significant. The system has been field tested on several tree species and is at a commercial-prototype stage. Its design is described in detail.