![]() ![]() There are also more than 80 walnut growers in Michigan with approximately 4,000 trees in nut production. There are about 8.5 million black walnut trees in the state’s forests that have an economic value of more the $86 million and are a food source for birds, mammals and other wildlife. In 2010, state officials introduced a quarantine to protect trees from the disease. DISCUSSION AND QUALIFICATION OF FIRE EFFECT : NO-ENTRY PLANT RESPONSE TO FIRE : Small 20- to 30-year-old black walnut trees will usually sprout from the root collar or stump when top-killed by fire. All are nursery tree are sprayed, sheared and. Thousand Cankers Disease is caused by small beetles that bore into walnut branches and introduce a fungus that eventually deteriorates and kills the tree. What is at risk Michigans forests are home to approximately 8.5 million black walnut trees with an economic value of more the 86 million. IMMEDIATE FIRE EFFECT ON PLANT : Young black walnut trees are typically top-killed by most fires 18,31. Golden chain tree, Big Tooth Aspen, Alder, Paper Birch (Paper, River, Monarch, Jacquemontii, Weeping, Crimson Frost and Japanese), Mountain Ash, Linden, Locust, Sweet Gum, Black Gum, Dogwood, Cottonwood, Cherry, Chestnut, Walnut (Black and White), seedling and many other varieties of nut trees. While black walnut trees in some states – such as Tennessee and Pennsylvania – are already being negatively impacted by Thousand Cankers Disease, experts say that the disease has not been detected in Michigan. The Agriculture and Rural Development Division said in a release that there have been recent reports of log buyers pressuring woodlot owners across the state to sell their black walnut trees, saying that Thousand Cankers Disease has shown up in Michigan. ![]() State officials are warning residents to be on the lookout for scammers who are trying to buy black walnut trees by telling tree owners that their plants are infected by a disease that hasn’t shown up in Michigan. ![]()
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