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  • Harriet Mella

    December 16, 2020 at 11:04 am

    Best material on weeds I know of is G. Ducerfs: L’ENCYCLOPEDIE DES PLANTES BIO INDICATRICES. He is currently setting up an app that is working very well in the test version – and I think that there is so little input needed (only latin species name is enough), that I think it could be suitable also for non-french speakers.