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Chemical Treatment

Chemical Treatment - treatment period - 24-48 months

Special herbicides can be used during two to four growing seasons.

Depending on the size of plants, season and prevailing weather, chemical treatments can involve stem injection, root injection, cut stem treatment or spraying.

 

This solution should only be undertaken by fully qualified and experienced personnel; this is often the cheapest treatment option. For quicker solutions Japanese Knotweed Killers can provide alternative methods of control and eradication.

 

Herbicide treatment periods can also be reduced by using a number of methods that can challenge the proliferation of rhizomes.

Beware of contractors who claim that knotweed can be eradicated using herbicides within a single growing season.

 

Various sources of guidance and advice from professional bodies and regulators, warn of spurious claims to quickly eradicate knotweed.

 

There are no products or commercially available chemicals that will, eradicate mature knotweed growth in a single season.