Tree of Knowledge


Emerald Sunshine Elm

Dutch Elm Disease (DED) Resistant Elm Species and Cultivars

By WAA ISA / December 23, 2019 / Comments Off on Dutch Elm Disease (DED) Resistant Elm Species and Cultivars

When it comes to street trees, many of us “older and wiser” folks remember driving down a residential street surrounded by a canopy of American elm trees. However, back in the late 60’s and early 70’s, arborists started removing thousands of dead elms, including my Detroit, Michigan street tree. This moment was a pivotal point…

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Trees For Bees Featured Image

Trees for Bees

By WAA ISA / July 1, 2019 / Comments Off on Trees for Bees

Why should we care about bees? Bees provide significant benefits to us, including pollination of our fruit and vegetable plants. Honeybees make honey that is a delicacy in any kitchen. Introduced honeybees are responsible for pollinating over $10 billion worth of U.S. food crops each year. Wisconsin has over 400 species of native bees that…

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