In an extreme case of weeding, amphibious tractors are this week tackling almost 16 tonnes of invasive weed in the lake at the National Trust’s Claremont Landscape Garden. The vehicles, an amphibious cross between a tractor and a tank, are armed with giant rakes to remove the carpet of Crassula helmsii – also known as […]

via Extreme weeding – fighting an aquatic invader at Claremont — National Trust Press Office

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