2017
Management of Pigweeds In OH Soybean Production
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Mark Loux, The Ohio State University
Co-Principal Investigators:
Project Code:
17-R-16
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

The overall objective of this project is to prevent Palmer amaranth and waterhemp from being any more of a problem in Ohio than they already are, by minimizing the number of new infestations and improving management of existing infestations. Specific objectives within this include maintaining an up-to-date assessment of the prevalence and distribution of waterhemp and Palmer amaranth in Ohio, providing resources that facilitate their prevention, identification and management, serving as a resource for growers and agronomists, and ensuring that growers have accurate information on the resistance characteristics of populations in their operation.

Key Benefactors:
farmers, agronomists, extension agents

Information And Results
Project Deliverables

1) continue a comprehensive effort to gather information about current and future insect and disease (and weed?) threats to the soybean crop in Ohio; and b) research and develop protocols and technology to combat insect and disease (and weed?) threats to soybean in Ohio.

Final Project Results

Update:
The survey results and information on our current Palmer amaranth and waterhemp distribution and abundance were included in presentations made available to OSU Extension educators for use in pesticide applicator and other training. This information was also presented by Mark Loux, extension weed specialist, to Ohio growers and agribusiness at several other meetings in November and December. We also conducted hands on training of OSU Extension educators on identification of pigweed species at a December inservice training. - Mark Loux and Bruce Ackley developed a folder of information that is being provided by OSU Extension educators to clientele at pesticide recertification and local agronomy meetings this winter. We made 8000 folders available for distribution. New fact sheets developed for this purpose – stewardship of dicamba in Xtend soybeans and a completely revised marestail control fact sheet. guide to identification of Ohio pigweed species, and a fact sheet that summarizes the nature of the palmer amaranth problem, with an emphasis on guidelines for prevention of new infestations. The folders also included updated fact sheets on management of LibertyLink soybeans and Palmer amaranth in Ohio overview, an updated herbicide site of action chart, an amaranth identification fact sheet, and a USB Take Action fact sheet on waterhemp control in soybeans. - Seeds of Amaranthus spp. collected during the fall 2017 survey of soybean fields, or submitted by clientele, were cleaned and placed in cold room. The cold conditions promote germination when these seeds are planted later in winter for screens to determine herbicide resistance.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.