Balsam Fir (Abies Balsamea (L.) Mill.) Phenology in Maine
Goal(s)/Objective(s): Facilitate the critical timing of spruce budworm sampling, the initiation of spray programs, and should enable an observer to predict the occurrence of phenological events throughout the state.
Key Findings: The area of latest phenology occupies the general region of the state north of Greenville and west of Ashland.
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- Mingo, T.M.
University of Maine - Dimond, J.B.
University of Maine
Phenology of balsam fir, (Abies balsamea (L.) Mill.), during spring 1977 is reported. The multiple regression model based on altitude, latitude, and May degree day values accounted for 52.6% of the observed variation in fir phenology. Use of the regression models and the general phenology map presented here should facilitate the critical timing of spruce budworm sampling, the initiation of spray programs, and should enable an observer to predict the occurrence of phenological events throughout the state.
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