Alternatives for reducing insecticides on cotton and corn : economic and environmental impact /

"Grant no. R802518-02."

Enemies of the rose.

"National Rose Society's Handbook on the fungus and insect pests of the rose."

Zeitschrift für angewandte Entomologie : zugleich Organ of the Deutsche Gesellschaft für Angewandte Entomologie.

Mode of access: Internet.

The San Jose scale, Aspidiotus perniciosus and some other destructive scale-insects of the State of New York /

Brief explanation printed on the verso of plates.

Method of destroying grasshoppers /

Issued originally as Entomological series. Circular 3, revised.

Chinch-bug barriers.

Issued originally as Entomological Series. Circular 5.

The army-worm.

Mode of access: Internet.

The army-worm.

Issued originally as Entomological Series. Circular 7.

Chinch-bug barriers.

Issued originally as Entomological Series. Circular 5.

Journal of economic entomology.

Editor: Feb. 1908- E.P. Felt.

Bulletin.

At head of title, no. 1-33, new ser. no. 1-48: U.S. Department of Agriculture. Division of Entomology; no. 49-127: U.S. Department of Agriculture. Bureau of Entomology.

Bulletin

Mode of access: Internet.

Bioassay of acephate-treated foliage on three instars of the Douglas-fir tussock moth /

Bibliography: p. 6-7.

Releases of beneficial organisms in the United States and territories, 1982 /

Chiefly tables.

Weekly report on insects, diseases, and crop development to cooperative extension agents.

Mode of access: Internet.