The army-worm.

Mode of access: Internet.

The more important insecticides and repellents /

Issued originally without number, by Entomological Survey Division.

Habits and control of termites.

Mode of access: Internet.

The corn root-aphis /

Issued originally as Entomological series. Circular 4.

Insect pest management guide.

Mode of access: Internet.

Biological notes.

At head of title, no. : State of Illinois ... Dept. of registration and education ...

Acute toxicity of ingested zinc shot to game-farm mallards /

Includes bibliographical references (p. 32-35).

Acute toxicity test of zinc shot in game-farm mallards : final report. /

Cover title.

An assessment of the water quality of the Rock River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An assessment of the water quality of the Cache River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

Annual report /

Description based on: 1989-90; title from cover.

Annual summary of biological investigations at Carlyle Lake.

"Annual report submitted to the U.S. Army Corps of Engineers, St. Louis District, St. Louis, Missouri."

Annual summary of biological investigations at Rend Lake.

"Annual report submitted to the U.S. Army Corps of Engineers, St. Louis District, St. Louis, Missouri."

Annual summary of water quality and biological investigations in Lake Shelbyville Basin.

"Annual report submitted to the U.S. Army Corps of Engineers, St. Louis District, St. Louis, Missouri."

Beauveria bassiana as a biological control agent of the corn rootworm : final report /

"Project: 88/142."