The beet leafhopper and its control on beets grown for seed in Arizona and New Mexico. (open access)

The beet leafhopper and its control on beets grown for seed in Arizona and New Mexico.

Describes the threat of the beet leafhopper, and methods to control the pest in order to protect beets grown for seed.
Date: September 1943
Creator: Romney, Van E.
System: The UNT Digital Library
The culture of tobacco. (open access)

The culture of tobacco.

A guide to tobacco farming, including sowing, planting, fertilizing, cutting, seed saving, and insect pest control.
Date: 1902
Creator: United States. Department of Agriculture.
System: The UNT Digital Library
Notes on frost. (open access)

Notes on frost.

Discusses the seasons of frost and how frost is formed, protection from frosts in various circumstances, and general observations.
Date: December 14, 1910
Creator: United States. Department of Agriculture.
System: The UNT Digital Library