For endogeic earthworms, a clear trend was also observed, with, for instance, a strong decrease in abundance (33%, 50%, and 56% decrease in abundance related to the control at 1, 6, and 12 months, respectively, in the D10 treatment) from the beginning to the end of the experiment.
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Toward a harmonized methodology to analyze field side effects of two pesticide products on earthworms at the EU level.
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The sentences
Highly significant effects (>50%) were observed on total anecic densities in the D10 treatment compared with the control treatment, 1, 6, and 12 months after pesticide application, with earthworm densities decreasing by 91%, 79%, and 73%, respectively.