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Friday, July 24, 2015
Cooler spring weather throughout parts of Arizona has caused Sycamore trees in Sunflower and the Oak Creek Canyon area to become infected with a foliage disease.  According to the Arizona State Forestry Division, Sycamore Anthracnose is more unsightly than damaging.  This isn’t the first time trees in those areas have...
Wednesday, July 22, 2015
Oak wilt, the same fungus responsible for Dutch elm disease, kills by blocking the tree's vascular system, tubing used to collect food and water, said Bob Heyd, a forest health specialist from the Department of Natural Resources in Marquette. There are two ways oak wilt can spread: through spores entering a susceptible oak...
Wednesday, July 22, 2015
Scientists gave a forest in West Salem, Wisconsin, famous for its chestnuts, an annual checkup of sorts earlier this month, and the numbers alone wouldn’t tell the whole story. About 15 scientists and students from the University of Wisconsin-La Crosse, Michigan State University and West Virginia University swatted bugs,...
Tuesday, July 14, 2015
With support from the USDA Forest Service’s Forest Health Protection Program, Alaska’s Division of Forestry is achieving goals outlined in its Forest Action Plan. In 2014 the Alaska Division of Forestry and its partner the Alaska Association of Conservation Districts awarded small grants to 12 different organizations to...
Thursday, July 9, 2015
The Colorado State Forest Service reports that Douglas firs on roughly 2,500 acres in the foothills are currently experiencing defoliation caused by the Douglas-fir tussock moth. Experts say damage by the pest can result in a high degree of mortality in severely affected trees. "The fact that we're actually seeing...
Monday, July 6, 2015
The U.S. Forest Service has approved a grant sought by Kentucky and Tennessee in their effort to protect hemlock trees threatened by an invasive pest, officials from both states said. The hemlock woolly adelgid, an Asian insect that was first found in Virginia in the 1950s, has sickened and killed hemlocks in at least 68...
Wednesday, July 1, 2015
Leaf damage has been confirmed in clusters of white oak trees in north and central Arkansas areas due to Jumping Oak Gall, or small plant growths caused by tiny, stingless wasps. In most cases galls do not cause permanent damage or tree mortality. The largest infestations have been confirmed in Crawford, Franklin, Pope and...
Tuesday, June 30, 2015
With support from the Forest Health Protection program of the USDA Forest Service, the Department of Natural Resources, Division of Forestry is achieving goals outlined in Minnesota’s Forest Action Plan. Minnesota’s invasive outreach campaign PlayCleanGo (PCG) is informing people and organizations about the best way to...
Monday, June 29, 2015
From the crest of the Cascade Mountains running east to the sagebrush and desert country along the Columbia River, a map shows years of damage from the Western Spruce Budworm, which is killing trees by the thousands. Moths living in one tree will lay eggs on the tree next to it. And when the caterpillars come out, the...
Friday, June 19, 2015
According to conservationists in Kansas and Missouri, Asian Bush Honeysuckle is the most visible and environmentally destabilizing invasive species in the metro area. Larry Rizzo, a natural history biologist at the Missouri Department of Conservation, says that there is a difference between invasive and exotic species, and...

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