Canadian Forest Service Publications

How many trees need to be sampled to detect emerald ash borer? 2015. Ryall, K.; Fidgen, J. Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario. Frontline Technical Note 115. 2 p.

Year: 2015

Issued by: Great Lakes Forestry Centre

Catalog ID: 35977

Language: English

Series: Frontline Technical Note (GLFC - Sault Ste. Marie)

Availability: PDF (download)

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Plain Language Summary

One challenge facing urban foresters is how to determine how many trees must be sampled to provide a high probability of detecting an unknown and asymptomatic emerald ash borer (EAB) infestation. We have developed a model that calculates a recommended number of ash trees to sample (using branch sampling) in areas where EAB has not yet been detected. Early detection of EAB populations can provide managers with additional time to identify and implement management options before unacceptable ash decline and mortality occurs. This model can be used by urban foresters to balance the resources they have available for EAB detection against the probability of detecting incipient populations.