Extension Bulletins

State Extension Bulletins on Biological Control  (Vol. IV, No. 4)

USDA Bulletins on Biological Control  (Vol. III, No. 11)

Grow Your Own Predatory Mites  (Vol. III, No. 5)

Publication on Natural Enemies in Small Fruits  (Vol. III, No. 1)

New Iowa State Extension Bulletin on Beneficial Insects  (Vol. I, No. 4)


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