Climate Action and Sustainability Plan June 2021 | Page 118

IX . Potential Pest Impacts

Various insects and diseases can infest urban forests , potentially killing trees and reducing the health , structural value and sustainability of the urban forest . As pests tend to have differing tree hosts , the potential damage or risk of each pest will differ among cities . Thirty-six pests were analyzed for their potential impact and compared with pest range maps ( Forest Health Technology Enterprise Team 2014 ) for the conterminous United States to determine their proximity to Middlesex County . Twelve of the thirty-six pests analyzed are located within the county . For a complete analysis of all pests , see Appendix VII .
Beech bark disease ( BBD ) ( Houston and O ’ Brien 1983 ) is an insect-disease complex that primarily impacts American beech . This disease threatens 4.8 percent of the population , which represents a potential loss of $ 262 thousand in structural value .
Butternut canker ( BC ) ( Ostry et al 1996 ) is caused by a fungus that infects butternut trees . The disease has since caused significant declines in butternut populations in the United States . Potential loss of trees from BC is 0.0 percent ($ 0 in structural value ).
The most common hosts of the fungus that cause chestnut blight ( CB ) ( Diller 1965 ) are American and European chestnut . CB has the potential to affect 0.0 percent of the population ($ 0 in structural value ).
Dogwood anthracnose ( DA ) ( Mielke and Daughtrey ) is a disease that affects dogwood species , specifically flowering and Pacific dogwood . This disease threatens 8.4 percent of the population , which represents a potential loss of $ 61.2 thousand in structural value .
I-Tree Report of Ecosystem Analysis at Mount Auburn Cemetery Insert to the Climate Action and Sustainability Plan
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