Street Trees For Wisconsin PDF Download

S2A pilot study to assess the structure, function, and health of Wisconsins street trees was initiated in 2002. Almost 900 plots were established in Wisconsins urban areas. Table 1 provides an overview of plot-level data, population estimates, and a calculated monetary value for Wisconsins street trees. Wisconsin has mid-sized street trees, dominated by Norway maple (30 percent), green ash (15 percent), honey locust (8 percent), and littleleaf linden (7 percent). Field assessments of crown dieback indicated robust and healthy trees in 2002. Damage was observed on only 16 percent of trees, and the most frequently observed types of damage were cracks or seams, open wounds, and conks on the trunk. The structural and functional value of Wisconsins street trees approaches $1.8 billion. Carbon storage and sequestration ($7.5 million), replacement value ($1.8 billion), and pollution removal ($1.7 million/ year) are important assets to the citizens of Wisconsin. Emerging threats to Wisconsins street trees include the Asian longhorned beetle, which could impact 82 percent of the roadside trees, emerald ash borer (20 percent), and gypsy moth (15 percent).S3.