Influence of canopy microclimate on incidence and severity of dogwood anthracnose. Chellemi, D. O. Canadian Journal of Botany, 1992.
Influence of canopy microclimate on incidence and severity of dogwood anthracnose. [pdf]Paper  abstract   bibtex   
Incidence and severity of dogwood anthracnose within the interior and exterior canopies of exposed and understory dogwood trees were recorded over a 53-day period during the summer of 1990. Concurrent measurements of vapor pressure deficit, air temperature, evaporative potential, and photosynthetically active radiation within the canopies were also recorded. Disease severity was significantly different among all canopy locations, with the lowest severity in exterior canopies of exposed trees and the greatest severity in canopies of understory trees. Of the climatic variables measured, evaporative potential provided the most consistent contrast among microclimates at the various canopy locations. Disease incidence and severity were greater in canopies associated with low levels of evaporative potential.

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