Tree Care After A Construction Project Sunday, May 27th 2007 Provided that you have done everything possible to guard against damage to your trees during a construction project. You have taken steps to avoid excess soil compaction near the tree & you have not disturbed anything inside the drip line of the tree which is the critical root zone. Read More Tree Hazard Checklist Sunday, May 27th 2007 Tree Hazard Checklist Consider these questions.. Read More There is a battle brewing in your backyard. Sunday, May 27th 2007 The Battle of Trees Versus Turf There may be a battle brewing in your backyard between your trees and your grass. Trees and turf tend to be mutually exclusive - you won't see many trees growing in the prairies or grasslands, and grass is uncommon on the forest floor. Read More Dieback & Decline Sunday, May 27th 2007 DIEBACK AND DECLINE Bruce R. Fraedrich, Ph. Read More Previous 2 3 4 5 6 7 8 9 10 Next		Thousand Cankers Disease Monday, April 12th 2010 Missouri Thousand Cankers Disease State Exterior Quarantine (Please be aware that there is a threat to walnut trees. Please call your local tree professional or the Missouri Dept. of Conservation if you see any unusual decline in your walnut trees so that they can be evaluated.) Collin Wamsley, State Entomologist, announces effective Monday, April 12, 2010 thru January 19, 2011 an emergency rule on Missouri Thousand Cankers Disease. "We hope this is one of many steps that will help protect Missouri's black walnut resource. A permanent rule is ongoing. Let me know if you have questions, comments or concerns. Collin can be contacted at phone 573.751.5505/5507 or email at Collin.Wamsley@mda.mo.gov Meanwhile, the U.S. Forest Service is leading the development of a National Response Framework for Thousand Cankers Disease on Walnut, which has significant involvement from Missouri. Also, tremendous efforts are underway in the research arena in pheromone development for survey, treatment options, resistant germplasm identification, and much more." Thousand Cankers Disease (TCD) is a pest complex that is causing mortality in walnut in many western states. It is caused by the walnut twig beetle (Pityophthorus juglandis) and an associated fungus (Geosmithia sp. nov.). Black walnut (Juglans nigra) is highly susceptible to this disease, but TCD has not yet been found in the native range of black walnut. For more information visit the website http://mda.mo.gov/plants/pests/thousandcankers.php Following is a copy of the Emergency Rule on Thousand Cankers Disease of Walnut