A simple ground-based trap for estimating densities of arboreal leaf-eating insects - Haack, Robert A.; Blank, Richard W.; North Central Forest Experiment Station (Saint Paul, Minn.) ([East Lansing, Mich.] : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experimental Station, 1991)
Caption title.
Distributed to depository libraries in microfiche.
Includes bibliographical references (p. 3-4).
Keywords: Insect traps