https://dutchtrig.com/wp-content/uploads/DutchTrig-22.jpg11801770Joris van den Nieuwenhuizenhttps://dutchtrig.com/wp-content/uploads/Logo-30-jaar-DutchTrig-RGB-1-300x231.jpgJoris van den Nieuwenhuizen2017-05-23 21:10:412022-05-19 16:13:19USA: More and more elms in New York City protected against Dutch Elm Disease