The information in this guide provides a summary of herbicide uses in crops grown in North Dakota and is based on federal and state herbicide labels, research at ND Ag. Experiment Stations, and information from the North Dakota Department of Agriculture.
Compiled by Joe lkley, Extension Weed Science
Contributors:
Mike Christoffers, Research Weed Science, Weed Genetics Caleb Dalley, Research Weed Science, Hettinger REC
Greg Endres, Extension Agronomist, Carrington REC
Greta Gramig, Research Weed Science, Weed Ecology
Kirk Howatt, Research Weed Science, Small Grains/Minor Crops
Brian Jenks, Research/Extension Weed Science, NCREC
Clair Keene, Extension Agronomist, Williston REC
Mike Ostlie, Research Weed Science, Carrington
REC Tom Peters, Extension Weed Science, Sugarbeet, NDSU/U of MN
Andy Robinson, Extension Agronomist, Potato, NDSU/U of MN
Andrew Thostenson, Extension Pesticide Programs
Harlene H. Valenti, Research, High Value Crops Specialist
Cover – 5 Index, Weed Guide Information
6 – 8 Chemical Weed Control for Field Crops: Plant-back Interval for Fall, Pre-Plant and PRE Herbicides
9 – 22 Small Grains: HRS and Durum Wheat, Winter Wheat and Barley; Oat; Rye
23 Small Acreage Crops: Buckwheat, Fababean, Juneberry, Mint, Onion, Sorghum, Triticale
24 – 31 Corn
32 – 41 Soybean
42 – 43 Dry Edible Bean
44 – 45 Field Pea
46-47 Chickpea/Garbanzo Bean and Lentil
48 Dry Edible Bean, Field Pea, Chickpea/Garbanzo Bean, Lentil Summary
50 – 51 Sunflower
52 Safflower
53 Flax
54 - 55 Canola and Rapeseed, Tame Mustard
56 Sunflower, Flax, Canola and Mustard Crops Summary
58 - 61 Sugarbeet
62 – 65 Potato
66 – 67 Alfalfa and Forage Legumes
68 – 69 Chemical Fallow
70 -71 CRP
72 Grass Establishment, Lawn, CRP Breakout
73 – 89 Special Weed Problems: ND Noxious and Troublesome Weeds
90 – 97 General Information: PPI and Pre Herbicides, Soil Organic Matter Test, Post Applied Herbicides, Glyphosate, Spray Adjuvants, Spray Carrier Water Quality, Spray and Vapor Drift, Sprayer Cleanout, Mixing Instructions, Wick Application, Backpack Sprayer Calibration, Calculating Herbicide Mixtures
98 - 101 Annual Weed Control
102 – 105 Perennial Weed Control
106 – 118 Herbicide-Resistant Weeds; Herbicide Site of Action and Chemical Family for Resistant Weed Management; Herbicide Carryover; Crop Rotation Restrictions for North Dakota; Herbicide Residue and Fall Cover Crop Establishment; Herbicide Residue Analysis for Soil, Water and Plant Tissue
119 – 124 Air Temperature Inversions and Delta T: A Tool for Pesticide Application Decision Making
125 – 127 Restrictions on Grazing/Feeding/Haying of Crops treated with Herbicides; Grazing and Haying Restrictions for Herbicides Used in Pasture and Rangeland
128 Control of Volunteer Glyphosate Resistant (GR) Crops
129 – 134 Herbicide Effectiveness, Residual Active in Soil and Persistence in Soil
135 – 145 North Dakota Herbicide Compendium
146 – 148 North Dakota Adjuvant Compendium
149 Understanding a Water Quality Analysis Report
150 Horseweed: Weed of the Year
151 Summary of New Information in the 2020 Weed Control Guide
152 Quick Reference Information, Contacts and Credits