Corn

Research Objectives
1. Determine the potential of controlling nutsedge in sweet corn with HPPD herbicides in combination with other products.
2. Determine sweet corn tolerance to HPPD herbicides combined with chloroacetamide herbicides such as Dual Magnum and with other herbicides targeting nutsedge.

VegNet is a regional pest monitoring and reporting network serving the Oregon processed vegetable industry, managed by the OSU Extension Service, and funded by the Oregon Processed Vegetable Commission.

This Report was submitted to the Agricultural Research Foundation and the Oregon Processed Vegetable Commission Broccoli and Cauliflower, Corn and Bean Research Committees.

Research Leader: Daniel McGrath

Objective: Identify sweet corn hybrids with suitable processing quality that have high, stable yields and tolerance to root rot disease complex.

Principal Investigator: Cynthia M. Ocamb, Ext. Specialist & Associate Professor, Botany and Plant Pathology, OSU – Corvallis
Co-investigator: Nathan Miller, Postdoctoral Research Assistant, BPP, OSU
Collaborators: Jim Myers (Dept. of Horticulture, OSU) and Rogers Brand Vegetable Seed

The Black Cutworm & Variegated Cutworm can be particularly damaging to corn and bean crops in the Willamette Valley if infestations are not detected early. This page provides some basic information about the pest and discusses management and controls methods. Detailed scouting and monitoring techniques are provided as well as a risk assessment for spray decisions.

The tolerance of sweet corn hybrids to postemergence applications of the herbicides Accent and Callisto was evaluated in field trials from 2005 to 2007 at multiple locations across the US.

C. Boerboom and J. Bollman, University of Wisconsin-Madison in collaboration with R. Becker, University of Minnesota, R. Bellinder, Cornell University, D. Morishita, University of Idaho, E. Peachey, Oregon State University, and M. VanGessel, University of Delaware.

OBJECTIVE for 1997:

• To evaluate the use of pre-sidedress testing of soil nitrate content (PSNT), leaf chlorophyll content, and/or leaf tissue N, to predict the level of additional N needed to grow the crop to good yield and quality.

COOPERATORS:

• Neil Christensen, Dept. of Crop and Soil Science
• Marvin Kauffman, consultant

 To develop and evaluate integrated cover crop/strip-tillage systems for sweet corn, snap bean and broccoli production which enhance economic profitability and enhance soil conservation and water quality.

OBJECTIVES

• Modify existing strip-tillage equipment to improve efficiency and vegetable crop yields.
• Compare the impacts of strip-tillage and conventional tillage systems on important horticultural and agroecological parameters.
• Compare the economic performance of strip-tillage and standard practice tillage systems.