Control of cyclamen and broad mites on Gerbera /
by Floyd F. Smith.
- Washington, D.C. : U.S. Dept. of Agriculture, 1939.
- 15 p. : ill. ; 24 cm.
- Circular / United States Department of Agriculture ; no. 516 .
- Circular (United States. Department of Agriculture) ; no. 516. .
Cover title. Contribution from Bureau of Entomology and Plant Quarantine.
agr39000322
Mites--Control. Cyclamen mite--Control. Gerbera--Diseases and pests.