Corn

Vegetation Management in Sweet Corn

Objectives:

Evaluate herbicides with near term availability such as dimethenamid, acetochlor, and nicosulfuron for both weed control efficiency and effect on sweet corn growth.

Determine tolerance of sweet corn to propane flaming and efficiency of in-row weed control.

Evaluate impacts of cover crop residues and tillage systems on weed emergence.

Evaluate a novel planter design for planting in conventional and conservation tillage environments.

Vegetation Management in Sweet Corn

Objectives:

Evaluate Surpass (acetochlor), Frontier (dimethenamid), Tough (pyridate), and Accent (nicosulfuron), for weed control and crop tolerance, and develop appropriate weed control programs to minimize impact of atrazine tolerant weeds and proso millet.

Determine tolerance of sweet corn to propane flaming with emphasis on early postemergence applications.

Determine impact of cover crop residues on weed emergence, herbicide efficacy, and sweet corn growth in both minimum tillage and conventional tillage systems.

Survey of corn fields in the Willamette Valley for stalk rot

PROJECT LEADERS: Mary L. Powelson, Robin Ludy and Virginia Heifer
Botany and Plant Pathology
Oregon State University
Corvallis, OR 97331-2902


COOPERATORS: Bill Mansour and Dan McGrath


OBJECTIVES: 1) Determine the distribution and severity of stalk rot of sweet corn in the Willamette Valley; 2) Determine which Fusarium species are most commonly associated with stalk rot; and 3) Conduct a crop history survey.