Control of aphids. Hearings before the Special Subcommittee on Aphid Infestation on H. R. 10502 [and others] April 24, 1956.

"Serial no. 84-XX."

Biological control of the Russian wheat aphid.

"Issued December 1993"--P. 15.

History and status of the green peach aphid as a pest of tobacco in the United States /

Includes bibliographical references (p. 10-12).

Biology of the foxglove aphid in the Northeastern United States /

Cover title.

Descriptive epizootiology of an aphid mycosis.

Bibliography: p. [17]

Population density relationships between hymenopterous parasites and their aphid hosts--a theoretical study

Includes bibliographical references.

Ecology of the green peach aphid as a vector of beet western yellows virus of sugarbeets /

Issued Aug. 1979.

Ecology of the pea aphid in the Blue Mountain area of eastern Washington and Oregon /

Caption title.

On the life-history of Chermes himalayensis, Steb., on the spruce (Picea morinda) and silver fir (Abies webbiana)

Also regarded as Indian forest memoirs, v. 2, pt. 3