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ARS Home » Midwest Area » Urbana, Illinois » Global Change and Photosynthesis Research » Research » Research Project #436440

Research Project: Benefits and Risks of Dicamba Herbicide in Vegetable Production Systems

Location: Global Change and Photosynthesis Research

Project Number: 5012-12220-010-06-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Jun 1, 2019
End Date: May 31, 2021

Objective:
Quantify the significance of application timing and formulation on sweet corn response to dicamba.

Approach:
Field experiments will be conducted in Urbana and Macomb, IL to quantify the significance of application timing and formulation on sweet corn response to dicamba. The experimental design will be a split-plot arranged as a randomized complete block with four replications. Main plot will include sweet corn hybrid; with hybrids differing in genotype for sensitivity to other P450-metabolized herbicides (mesotrione and nicosulfuron). The subplot factor will be a factorial of formulation and timing; field use rate of dicamba versus dicamba + cyprosulfamide applied at V3, V6, and V9 vegetative growth stages. A non-treated control will be included. Data will include: crop injury 1 and 2 weeks after treatment, silking date, crop yield (ear number, ear mass, number of malformed ears, number of ears broken by husking bed, and additional measures of recovery).