Here is a useful list of organisations and bodies which Weedfree would like to recommend:
The Amenity Forum
The Amenity Forum (Amenity Landscaping Environmental Stewardship Forum) is an independent body to bring together professional organisations with an involvement in the amenity horticulture sector. This is a very diverse industry responsible for the landscape management of urban areas, highways and rail network, sports grounds, parks, industrial and utility sites. To establish and maintain these areas to a high standard the sector requires access to pesticides, efficient equipment, trained and qualified staff. The organisation was formed in October 2003 as a key action to support the Voluntary Initiative, an industry led project agreed with Government to reduce the environmental impact of pesticides.
Seasonal Treatment & Weed Control From Aquarius