Table of contents

1 HOW DOES YOUR HAY STACK UP? Paul V. Fonnesbeck, Reuel E. Lamborn, and Melvin J. Anderson A nutritional analysis can help you sell your hay for what it is wo.rth. Quality doesn't have to be a guessing game.

7 LARKSPURS-A DEADLY BEAUTY Eugene H. Cronin and Darwin B. Nielsen Larkspur regularly claims large numbers of cattle in the western states. The plant can be controlled, however, and at a practical cost.

12 AN ASIAN TREASURE HUNTWITH PLANTS IN MIND Douglas R. Dewey When you know what to look lor, plant collecting can have rewards beyond personal satisfaction. New plant species brought from the Soviet Union may eventually enhance U.S. range productivity.

15 PRIME FARMLAND-A CRUCIAL DEBATE 16 LAND USE CONTROLS AND AGRICULTURAL PRODUCTION W. Cris lewis A noted economist advocates minimal land use controls and maximum economic freedoms based upon his belief in our having more than enough agricultural land in the U.S. 20 EXPENDABLE ACRES? A SCENARIO FOR THOUGHT Alvin R. Southard A leading soil scientist warns of rigid future controls which may be imposed on land use decisions il individuals and communities do not act soon to identify and protect highly productive soils.

24 WASPS-THE REAL STORY Not all wasps are nasty-tempered stinger-studded threats. Some are surprisingly beautiful, and many offer help to anyone eager to control crop pests. 28 IPM FOR BETTER USE OF INSECTICIDES The increases in costs and occasional failures of chemical management are plaguing many farmers. On-the-spot analyses of your fields before the chemicals are applied could be the solution.

30 PROJECTS IN PROGRESS Lois M. Cox This feature heralds things to come. Its brief samplings of ongoing research describe the hows and whys of anticipated results