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Reports of observations and experiments in the practical work of the Division
Proceedings of the eighteenth annual meeting of the Association of Economic Entomologists
Proceedings, plant pest control meetings : New Brunswick, New Jersey, February 6-8 ; Berkeley, California, February 13-15 ; St. Paul, Minnesota, Febr…
A working plan for forest lands near Pine Bluff, Arkansas
Vacuum-cooling fresh vegetables and fruits
Use of stop-drop sprays on apples and pears
Summary of activities fiscal year 1961, Plant Quarantine Division
Forest conditions of northern New Hampshire
Plan for cooperating in the study of available plant food
Mosquito survey and control, Twin Buttes, Washington, Columbia National Forest