Smith, Floyd F. 1900-

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.

SB608.G4 / S8

1 / Ag84C no.516