Importation

Alfalfa Weevil in the Midwest: A Successful Case of Classical Biological Control  (Vol. IV, No. 7)

In New Congressional Study Evaluates Biological Control  (Vol. III, No. 1)

Classical Biological Control: Importation of Natural Enemies  (Vol. I, No. 3)

In Bathyplectes, Parasites of the Alfalfa Weevil  (Vol. I, No. 2)

What Is Biological Control?  (Vol. I, No. 1)