Procedure for the microbiological examination of production batch preparations of the nuclear polyhedrosis virus (Baculovirus) of the gypsy moth, Lymantria dispar L. [Biological control]
Podgwaite J.D, Bruen R.B
Published in USDA Forest Service General Technical Report NE (USA). no. 38 (1978)
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Published in USDA Forest Service General Technical Report NE (USA). no. 38 (1978)
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Northeastern Region. Program of research for forests and associated rangelands [Includes forest protection, timber management, multi-resource evaluation, wood products, watersheds, recreation, USA]
Published in USDA Forest Service General Technical Report NE (USA). no. 42
(1978)
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Children, nature, and the urban environment. Proceedings of a symposium-fair held 19-23 May 1975 at the George Washington University, Washington, D.C. [Human development in relation to the natural environment, sociology, social aspects of forestry]
Published in USDA Forest Service General Technical Report NE (USA). no. 30
(1977)
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Proceedings of the eighth annual Northeastern Forest Insect Work Conference: techniques for research, development, and application; North Haven, Connecticut, 1-3 April 1975 [Forest trees, economic crops, biological control, Porthetria dispar, Anthonomus grandis]
Published in USDA Forest Service General Technical Report NE (USA). no. 27
(1976)
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