Herbicide TreatmentPerfect for large infested sites
Leaf application of herbicide
Leaf application of herbicides, also known as foliage spraying, is the ideal solution for treating large and small areas infected with Japanese Knotweed. The herbicide can be applied quickly and will be absorbed by the leaves down into the rhizomes from where it will destroy the plant. Herbicide treatment plans are the most cost effective, however, if you are landscaping or developing, this may not be suitable and you may need to consider excavation.
How long does herbicide spraying take to work?
Herbicide spray treatment is a sure and economically viable method of eliminating Japanese Knotweed but it may take a while. Once the herbicide has been applied to the leaves, it needs to be taken down to the rhizomes to be effective. The herbicide is usually rainfast within 10 mins. Spray herbicide treatments normally take between 2 and 5 years to complete, but can take longer if the infestation is mature and well established.
NPTC and PCA qualified technicians
The application of herbicides, both foliage spraying and stem injection requires special care to prevent harm to other nearby plants and wildlife. All of our technicians at Japanese Knotweed Specialists are NPTC and PCA qualified, which is a necessary requirement for the application for any industry standard herbicide.
Working strictly to the PCA code of practice, we ensure your treatment plan includes a two-year post-herbicide-treatment monitoring period. Along with your guarantee, this ensures you have a robust, long-lasting treatment plan.
Environment Agency & SEPA approved
Insurance backed guarantees
We offer five and ten-year guarantees with all of our Japanese Knotweed treatments to satisfy mortgage lending companies. Our guarantees are independently written and approved by the Invasive Weed Group of the Property Care Association (PCA), and also recognised by the Royal Institution of Chartered Surveyors (RICS).