2007 Weed Guide-Table of Contents

Introduction

Cultural Control of Weeds
Cultivation
Chemical Control of Weeds
Herbicide Formulation and Additives
Herbicide Application
Pesticides and the Environment
Restricted Use Pesticides
Herbicide Resistance in Weeds
Herbicide Sites of Action

Corn

Table 1A ó Chemical Weed Control in Corn: Soil Applied and Postemergence ó All Tillage Systems

Table 1B ó Chemical Weed Control in Imidazolinone Resistant Corn ( Clearfield Corn)

Table 1C ó Chemical Weed Control in Liberty Resistant/ Liberty Link Corn

Table 1DóChemical Weed Control in Glyphosate-Resistant Corn

Table 1E ó Chemical Weed Control in No-Till Corn: Burndown Herbicides, Legume Sod , and Quackgrass Sod

Table 1F ó Plant Response to Fall or Spring Herbicides in Sod

Table 1G ó Effectiveness of Herbicides for Spring Burndown in Corn

Table 1H ó Herbicide Premixes in Corn

Table 1I ó Weed Response to Herbicides in Corn

Table 1J ó Weed and Crop Heights for Postemergence Herbicide Applications in Corn

Table 1K ó Delayed Herbicide Application in Corn

Table 1L ó Herbicide: Organophosphate Insecticide Compatibility Chart for Conventional and Clearfield Corn

Soybeans

Table 2A ó Chemical Weed Control in Soybeans: Preplant Incorporated, Soil Applied ó All Tillage Systems, Postemergence for Broadleaf Weeds, and Postemergence Grass Control

Table 2B ó Weed Control in Glyphosate Resistant Soybeans

Table 2C ó Weed Management in No-Till Soybeans:

Effectiveness of Herbicides for No-Till Soybeans

Table 2D ó SoybeansóPreharvest Application

Table 2E ó Herbicide Premixes in Soybeans

Table 2F ó Weed Response to Herbicides in Soybeans

Table 2G ó Maximum Broadleaf Weed Heights for Postemergence Control in Soybeans

Table 2H ó Suggested Additives for Postemergence Herbicide Applications in Soybeans

Table 2I ó Additives for Postemergence Broadleaf Weed Control in Soybeans

Table 2J ó Application Rates of Postemergence Grass Herbicides for Control of Grass Species at Various Heights

Table 2K ó Labeled Tank-Mixes with Postemergence Grass Herbicides in Soybeans

Table 2L ó Feed and Forage Restrictions for Soybean Herbicides

Small Grains

Table 3A ó Chemical Weed Control in Small Grains: Wheat and Barley (Without Legumes)

Figure 1 ó Wheat Growth Stages According to Feekeís Scale and Corresponding Herbicide Application Timing

Oats (Without Legume)

Small Grains Seeded to Legumes

Table 3B ó Harvest Restrictions for Small Grain Herbicides

Table 3C ó Weed Response to Herbicides in Small Grains

Forages

Table 4A ó Chemical Weed Control in Forage Establishment: Alfalfa, Trefoil, and Clover, Birdsfoot Trefoil (only), and Alfalfa (only)

Table 4B ó Chemical Weed Control in Established Forages: Alfalfa, Birdsfoot Trefoil, Grass Pasture, and Preharvest Application ó Alfalfa

Table 4C ó Harvest Restrictions for Forage Legume Herbicides

Table 4D ó Harvest Restrictions for Forage Grass Herbicides

Table 4E ó Weed Response to Herbicides in Forage Legumes

Table 4F ó Weed Response to Herbicides in Established Forage Grasses

Dry Beans

Table 5A ó Chemical Weed Control in Dry Edible Beans:
Preplant Incorporated
Soil Applied
Postemergence

Table 5B ó Preharvest Treatments in Dry Edible Beans

Table 5C ó Weed Response to Herbicides in Dry Edible Beans

Potatoes

Table 6A ó Chemical Weed Control in Potatoes: Preplant followed by Delayed Preemergence, Early Preemergence followed by Delayed Preemergence, Delayed Preemergence, and Postemergence

Table 6B ó Vine Desiccation in Potatoes

Table 6C ó Weed Response to Herbicides in Potatoes

Sugar Beets

Table 7A ó Chemical Weed Control in Sugar Beets:
Preplant
Preemergence
Micro-Rate Postemergence
Timing Micro-Rate Applications Using Growing Degree Days (GDD)
Early Postemergence
Postemergence

Table 7B ó Weed Response to Herbicides in Sugar Beets

Table 7C ó Guidelines for Velvetleaf Control with UpBeet