Books by "Torolf R. Torgersen"

1 books found

Using Pheromone Traps to Detect and Evaluate Populations of the Gypsy Moth

Using Pheromone Traps to Detect and Evaluate Populations of the Gypsy Moth

by Boyd E. Wickman, Charles P. Schwalbe, David R. Houston, H. Gene Paul, Jerald E. Dewey, Milton J. Stelzer, Richard R. Mason, Torolf R. Torgersen, United States. Dept. of Agriculture

1978