Persistence and mobility of selected pesticides in loessial soils of Illinois : final report /

"Contract: EH 10."

Rules and regulations relating to the handling of anhydrous ammonia and low pressure nitrogen solutions, equipment containers and storage facilities /

Cover title.

Plant-growth regulators /

Chiefly tables.

Pesticides /

Mode of access: Internet.

Inorganic chemicals as aids in burning hardwood tree stumps /

Cover title.

General-contact weed killers : water soluble chemicals, oils & fortified oils, emulsions /

Mode of access: Internet.

Colonies of insects, mites, ticks, and spiders maintained in laboratories of the Entomology Research and Market Quality Research Divisions of the Agricultural Research Service, U. S. Dept. of Agriculture.

Mode of access: Internet.

Colonies of insects, mites, ticks, and spiders maintained in laboratories of the Entomology Research and Market Quality Research Divisions of the Agricultural Research Service, U. S. Dept. of Agriculture.

Mode of access: Internet.

Colonies of insects, mites, and ticks maintained in laboratories of the Entomology Research and Market Quality Research Divisions of the Agricultural Research Service, U. S. Dept. of Agriculture,

Cover title.