Скачать или смотреть The shiny-capped Ganoderma species of the United States

This webinar will cover the biology, identification and management of several common Ganoderma species in the southeastern U.S.

Ganoderma is a large and diverse genus of wood decay fungi that can rot the roots and/or lower trunk of many tree species. Trees infected with Ganoderma often show symptoms like branch death, sparse crowns, slow growth, wilting leaves, and other symptoms of root death that can lead to hazardous tree conditions and tree failures. Most Ganoderma species in the southeastern United States are opportunistic pathogens that take advantage of stressed plants. Drought-stressed plants and plants growing under suboptimal conditions in urban settings appear to be more susceptible to decay by Ganoderma. Choosing the appropriate tree species for a given landscape can be an effective management strategy to prevent and/or slow decay. Maintaining healthy trees by preventing wounding and providing proper fertilization, irrigation, mulching, and other plant health care tactics will improve the resiliency and resistance of trees to decay fungi. When Ganoderma fruiting bodies are found in the landscape, a tree risk assessment should be performed to evaluate the level of hazard presented. Quantifying the area of decay within trees, knowledge of which Ganoderma species is present, and what tree species is infected can assist with tree structure evaluations and risk assessments of hazardous trees.