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Umweltverträglicher Pflanzenschutz - Wissenschaftler fordern strengere Regeln
Die Regeln, nach denen in Deutschland Pestizide zugelassen werden, müssen strenger werden. Die Labortests spiegeln nicht wider, wie Pestizide in der Umwelt tatsächlich wirken. Das bemängeln Biologen, Ökologen und Agrarwissenschaftler in einem gemeinsamen Positionspapier. Warum, erklärt Prof. Matthias Liess vom Umweltforschungszentrum Leipzig.