"The Thanet Report"

Introduction

Traditionally, the most common method used for hard surface weed control has been to apply herbicides at set times in the growing season. Targeted application and more effective and efficient use of herbicides can be achieved by flexible timing of applications based on monitoring, and the inclusion of alternative methods can minimise herbicide use.

Adopting alternative methods to control weeds reduces the risks associated with herbicide use (e.g. storage, handling, use and disposal), but it can be more costly. A decision to integrate the traditional scheduled herbicide treatments with alternative strategies can draw upon the experiences and lessons learnt from the five year trial on integrated and non-chemical methods of weed control in Thanet, Kent.

You can read the full report here..... https://www.emr.ac.uk/wp-content/uploads/2015/03/BPWeeds2015web1.pdf

or here.... https://kerstenuk.com/files/The-Thanet-Report-Controlling-Weeds-On-Hard-Surfaces.pdf