Landscape Contractor / Design Build Maintain

JUL 2017

LC/DBM provides landscape contractors with Educational, Imaginative and Practical information about their business, their employees, their machines and their projects.

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Monarchs get a Home at NCSU Through the efforts of crop and soil sciences professor emeritus Harold Co- ble, several volunteers and a local chemical company, North Carolina State Uni- versity's Centennial Campus' Lonnie Poole Golf Course became a habitat for monarch butterflies. Approximately 750 milkweed plants and wildflowers were planted among native grasses around the greens and fairways. The plants, as well as the four butterflies released, were donated by the chemical company. 12 LC DBM Using Drones to Evaluate Turfgrass Is This Tree Susceptible to EAB? Efforts to Direct Students into Skilled Trades Increase in Michigan How Green are Urban Trees? Cal Poly Pomona's Plant Science department collaborated with the departments of computer sci - ence and aerospace engineering to use drones to as- sess turfgrass color and quality. The drones captured and uploaded images to a deep learning model, which evaluated the plot on a scale of 1 to 9. "The model had an error of around 1.0," said Robert Green, Ph.D., whose error rate is in the 0.3-0.4 range. "It's a good start, but there's more work to be done." Thanks to the success of this study, similar studies are now being conducted to observe different plants. In conjunction with the Colorado State Forest Service, the Colorado State University Extension has released a mo - bile app to help users deter- mine if their tree is at risk for infestation from the emerald ash borer, an invasive pest that was first confirmed in the U.S. in 2002. The ash tree identifier app encourages users to consid - er early management options and seek help from professional arborists. The app is free and available for most Android and Apple devices; search the app store for "ash tree." The Michigan state Senate voted in early June that schools are re - quired to inform middle school stu- dents of what occupations are in demand in their region. This would become part of an already mandated educational development plan that students review. Supporters of the bill hope it will decrease the short - age of workers in skilled trades and other industries. The legislation has not yet passed the House. Read the full bill at . A group of researchers from the University of Illinois, University of Florida and University of Kentucky conducted a study of red maple trees in commercial and residential settings to determine at what age they become carbon neutral. Trees sequester carbon, but their mainte - nance releases carbon. Depending on maintenance methods (hand pruning vs. chainsaws), commercial trees will take 24-30 years to become car - bon neutral and residential trees will take 26-33 years. Residential trees take longer because they have a lon - ger lifespan (48 years to commercial trees' 30) and therefore require more maintenance. The Horticultural Re - search Institute, the foundation of AmericanHort, provided funding for the research. Grad Student Creates Native Plant Database The New England Native Plants Initiatives website, launched by a UConn grad student and horticulture professor, aims to increase the use of native plants in the region. The website offers information on using native plants for roadside revegetation, as well as state orga - nizations, initia- tives, and native plant sources. http://nenative - index.php

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