Some insects affecting the production of red clover seed
By: F.  M. Webster
Contributors: United States. Bureau of Entomology; United States. Dept. of Agriculture
Series: Circular / U. S. Dept. of Agriculture. Bureau of Entomology -- no. 69; Circular (United States. Bureau of Entomology) -- no. 69.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1906
Place of publication: Washington, D.C
Language: eng
Subjects: Agricultural pests; Clover; Clover seed; Pests; Diseases and pests
Notes: Circular No. 69.

"April 12, 1906."

At head of title:  United States Department of Agriculture, Bureau of Entomology.
Table of contents: title: Relations of the two insects; title: Interrelations with other insects. pp. 1.; title: The clover-flower midge; title: Description. pp. 3.; title: Life history. pp. 4.; title: Effect upon the plant; title: Distribution; title: Natural enemies. pp. 5.; title: Preventive measures. pp. 6.; title: The clover-seed Chalcis; title: Description. pp. 7.; title: Life history; title: Food habits and effects upon the plant. pp. 8.; title: Distribution; title: Natural enemies; title: Preventive measures. pp. 9.