Abstract
Plant cover occurring on electric transmission rights-of-way after commonly used maintenance treatments was studied in two Physiographic Provinces in Pennsylvania (Allegheny Mountain and Piedmont) to predict cover type development. At both locations, a tree sprout-shrub cover type developed after handcutting; a grass-forb-shrub cover type after mowing; a grass-forb cover type after mowing plus herbicide and stem-foliage sprays; a forb-grass cover type after foliage spraying; and a shrub-forb-grass cover type after selective basal spraying. Data from other studies showed that aerial spraying produced a grass-forb cover type. The plant species composition of each cover type is described for both Physiographic Provinces.
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