Biology of the foxglove aphid in the Northeastern United States /

Cover title.

Frequencies of nodulation response alleles, Rj₂ and Rj₄, in soybean plant introduction and breeding lines /

Chiefly tables.

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.

Improvement and industrial utilization of soybeans : research under the soybean laboratory program.

Cover title.

Proceedings of International Conference on soybean protein foods held at Peoria, Ill., October 17-19, 1966.

Cover title.

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

Caption title.