Biology and control of Comstock's mealy bug on the umbrella catalpa
By: by Walter Seneff Hough.
Published: 1925
Place of publication: [Blacksburg, Va
Language: eng
Number of pages: 27
Subjects: Scale insects.; Catalpa.
Notes: "Literature cited": p. 27.
Thesis (PH. D.)--Ohio state university, 1925.
Cover-title.
Autobiography.
Published also as Virginia. Agricultural experiment station. Technical bulletin 29, Feb., 1925.