Weed-killing using chemicals will resume again on Cambridgeshire’s roads and paths after the county council admitted it had “not got it right” following a policy change. The authority stopped using herbicides last year and opted instead to physically remove weeds where they “presented a hazard or nuisance” to people. The council forecast that it would save £120,000 a year, cut its carbon footprint and reduce the use of “potentially harmful” chemicals. But with some roads and paths being overrun with weeds, a review found the majority of respondents to a survey were unhappy with the change and …