Date of Award

5-1-1964

Degree Type

Report

Degree Name

Doctor of Philosophy (PhD)

Department

Biology

Committee Chair(s)

Donald W. Davis

Committee

Donald W. Davis

Committee

George E. Bohart

Committee

Orson S. Cannon

Committee

Herman H. Wiebe

Abstract

The four-spotted spider mite, Tetranychus canadensis (McGregor) has been identified from parts of seventeen states, Washington, D. C., and Danada since it was first recognized as a new species by McGregor (1950) from Ontario, Canada. During this thirteen-year period it has been reported on at least twenty-eight different host plants including ornamentals and orchard, vegetable, and forage crops.

Included in

Entomology Commons

Share

COinS