The citrus blackfly in Asia, and the importation of its natural enemies into tropical America
By: by Curtis P. Clausen and Paul A. Berry.
Contributors: Berry, Paul A., 1899-; United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 320; Technical bulletin (United States. Dept. of Agriculture) -- no. 320.
Publisher: U.S. Dept. of Agriculture
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 59
Subjects: Citrus -- Diseases and pests -- Asia.; Parasitic insects -- Asia.
Notes: Cover title.

Literature cited: p. 58.