Stem Injection

Our unique stem injection process, which is proven to be the most effective and environmentally-friendly form of treatment, has been regularly praised in the press. With Japanese Knotweed and other invasive plants occupying a vast number of development sites in the UK, and our reputation for excellent and effective treatment, we are sure we will continue to grow.

Stem injection involves injecting a concentrate of glyphosate herbicide into each cane of the weed using specialist equipment specifically designed in the treatment of Japanese knotweed.


Japanese knotweed absorbs the glyphosate into the rhizome with a faster absorbency rate than that of foliar spraying. Less risky to the environment, as the injected herbicide has no effect on the surrounding vegetation and is also safe to use near water, stem injection is a more effective eradication method.

Results will be seen within two weeks. From injection the weed goes dormant and visible signs of foliar decay appear within days after treatment. Any canes missed during the process will be visible within the two-week period and a re-application carried out as part of the treatment process. Treatment is not affected by wind, rain or convection. Stem injection can be used at anytime during the growing season.