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    Farmers who spray insecticides against aphids as a preventative measure only achieve a short-term effect with this method. In the long term, their fields will end up with even more aphids than untreated fields.


    Familiar view


    What happens when bees are displaced to unfamiliar locations? Quite a few of them find their way back to the hive even from great distances – provided that a certain condition is satisfied. The relevant details are reported by researchers from Würzburg and Canberra in a new publication.


    Rising levels of nitrate and of the hormone abscisic acid signal to a plant that it needs to conserve water. How do these two transmitters achieve their effect? Plant researchers Rainer Hedrich and Dietmar Geiger from the University of Würzburg have found the answer.