![]() ![]() Erosion of ancient topsoil and loss of vital soil taxa are most urgent – and most ignored – of all context-triaged concerns. Land’s basic biota metric is soil organic carbon (SOC) yet global estimates range 1,417–15,000 Gt C. These sizeable herbicide-induced impacts on agroecosystems are particularly worrisome because these herbicides have been globally used for decades. Herbicide application led to increased soil concentrations of nitrate by 1592% and phosphate by 127%, pointing to potential risks for nutrient leaching into streams, lakes, or groundwater aquifers. Reproduction of the soil dwellers was reduced by 56% within three months after herbicide application. ![]() We demonstrate, that the surface casting activity of vertically burrowing earthworms (Lumbricus terrestris) almost ceased three weeks after herbicide application, while the activity of soil dwelling earthworms (Aporrectodea caliginosa) was not affected. In a greenhouse experiment, we assessed the impact of the most widely used glyphosate-based herbicide Roundup on two earthworm species with different feeding strategies. However, our knowledge of potential side-effects on non-target soil organisms, even on such eminent ones as earthworms, is still very scarce. Herbicide use is increasing worldwide both in agriculture and private gardens. ![]()
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