Two pesticides, potassium phosphite and fluopyram, are proving to protect beech against the disease. When poured into the base of a tree, potassium phosphite can stimulate its ability to protect itself against nematodes. Fluopyram is sprayed onto foliage and kills nematodes directly. It’s highly effective — though it’s not magic.
— Read on www.bostonglobe.com/2024/06/12/magazine/parasite-is-infecting-beech-forests-across-new-england/
Beech leaf disease threatens trees in New England, Arnold Arboretum
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