Weeds in Ontario

| What's New In Weeds? | Factsheets | Newsletters | Research Summaries | Resources & Services |
| Stats & Facts | Crops Updates | Pests | Related Topics | Links |

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What's New in Weeds?

• Problem Weed Control in Field Crops
• Weeds Act - Frequently Asked Questions
• Milkweed Species in Ontario
• Responsible Glyphosate Use in Field Crops
• Weed Profile - Chess, Bromus secalinus L.

Articles - Field Crops

• Soybean Crop Staging and Herbicide Application Timing (Crop Pest, June 2007)
• Winter Wheat Scouting Update as of May 24, 2007 (Crop Pest, May 2007)
• Impact - A new Corn Herbicide for Ontario (Crop Pest, May 2007)
• Patience with Perennial Weeds (Hort Matters, May 2007)
• Option 1, 2, 3 - A New "One-Pass" Corn Herbicide for Ontario (Crop Pest, May 2007)
• "Weird Weeds" Questions and Answers (Crop Pest, May 2007)
• Jimsonweed - An Emerging Problem In Field Crops? (Crop Talk, March 2007)
• Weed Seeds and Manure (Crop Talk, November 2006)
• Dog Strangling Vine – Results From 2006 (Crop Talk, September 2006)
• Dog Strangling Vine - An Invasive Species Creeping Into Agricultural Fields (Crop Talk, March 2006)
• Glyphosate Additives on Soybeans (Crop Talk, March 2006)
• Weed Emergence in Winter Wheat (Crop Pest, May 2006)
• Weed Emergence in Winter Wheat - Week of May 1 (Crop Pest, May 2006)
• Weed Control Considerations in Corn (Crop Pest, May 2006)

For previous articles see Index of Newsletter Articles on Weed Management - Field Crops

Articles - Horticultural Crops

• Weed Escapes in Field Tomatoes: Broadleaf weeds (Hort Matters, June 2007)
• Our Neighbours have Glyphosate-Resistant Canada Fleabane - Do You? (Hort Matters, June 2007)
• Why Scout for Weeds? (Hort Matters, June 2007)
• Ready with Your Weed Prevention Program? (Hort Matters, May 2007)
  
• Patience with Perennial Weeds (Hort Matters, May 2007)
• Recropping after Callisto or Command? (Hort Matters, April 2007)
• Why Improve Weed Management in Young Trees? (Orchard Network, April 2007)
• Part 3: Improving Weed Management in Young Trees (Spring/early summer) (TFGV, June 2007)
• Part 2: Improving Weed Management in Young Trees (Preplant/early spring) (TFGV, March 2007)
• Part 1: Why Improve Weed Management in Young Trees and Vines? (TFGV, March 2007)
• Reducing Weeds in Berry Crops (Ontario Berry Grower, March 2007)
• Who Likes Rain? Ducks, Fishermen and Winter Annuals (Hort Matters, November 2006)
• Plants You Don't Want to Touch! (Hort Matters, August 2006)
• Start Controlling Next Year's Weeds with Cover Crops (Hort Matters, July 2006)
• Herbicide Injury - What Should I Do Now? (Hort Matters, June 2006)
• Sources of Spot Treatment Equipment (Hort Matters, June 2006)
• Why is field pansy a problem in strawberries? (Hort Matters, April 2006)
• Rosettes in Your Rosaceae? (Hort Matters, April 2006)
• Herbicide Injury in Fruit Trees and Grapevines (TFGV, May 2006)
• Minor Use Registrations: What is third party liability? (Ontario Berry Grower, March 2006)

For previous articles see Index of Newsletter Articles on Weed Management - Horticultural Crops

New Herbicide Registrations for Ontario

• New Herbicides for Field Crops
• New Herbicides for Fruit Crops
• New Herbicides for Vegetable Crops
• New Herbicides for Specialty Crops

New Weed Publications

• Problem Weed Control in Field Crops
• Publication 75, Guide to Weed Control Online
• OMAFRA Crop Publications
• OMAFRA Field Pocket Guide - A Practical Tool To Record Crop Management Activities
• Prickly Lettuce (Order No. 03-041)
• Strawberry Weed Management - New Brunswick Strawberry IPM Guide (link to PDF - 319 k)
• Wild Mustard (Order No. 03-043)

Factsheets, Infosheets & Publications

| What's New In Weeds? | Weed Biology | Field Crops | Horticultural Crops | Application Technology |

Weed Biology

• Annual Broadleaves
  • Annual Nightshades (Order No. 94-075)
  • Bedstraw - Weed Control - Be On The Lookout For "Smooth Bedstraw"
  • Canada Fleabane (Order No. 02-067)
  • Cocklebur (Order No. 01-005) (PDF file - 2.82MB)
  • Coltsfoot
  • Jimsonweed - An Emerging Problem In Field Crops? (Crop Talk, March 2007)
  • Pigweeds (Redroot, Green and Smooth) (Order No. 01-009) (PDF file - 2.29MB)
  • Prickly Lettuce (Order No. 03-041)
  • Wild Mustard (Order No. 03-043)
• Grasses
  • Proso Millet (Order No. 87-025)
  • Quackgrass
  • Rough Bluegrass (Order No. 92-054)
• Herbicide Resistant Weeds (Order No. 01-023) (PDF file - 141KB)
• Newletter Article Index: Weed Biology
  • Annual Broadleaf Weeds
  • Annual Grassy Weeds
  • Perennial Weeds
• Ontario Noxious Weeds
  • Weeds Act - Frequently Asked Questions
  • OMAFRA Poisonous Plant Quiz
  • Ontario Noxious Weeds: Weed Profile
• Perennial Weeds
  • Dog Strangling Vine – Results From 2006 (Crop Talk, September 2006)
  • Dog Strangling Vine - An Invasive Species Creeping Into Agricultural Fields (Crop Talk, March 2006)
  • Field Bindweed (Order No. 01-007) PDF (PDF file - 2.89MB)
  • Jerusalem Artichoke (Order No. 94-077)
  • Milkweed Species in Ontario
  • Patience with Perennial Weeds (Hort Matters, May 2007)
  • Quackgrass
  • The Perennial Ground Cherries
• Weeds in Ontario
  • Ontario Weeds (Publication 505)
  • Ontario Weeds - Weed Gallery
  • Weed Identification Quiz
• Problem Weed Series:
  • Problem Weed Control in Field Crops
  • Annual Bluegrass (Poa annua) Control with Selected Herbicides (Crop Pest, April 2005)
  • Problem Weed Series for Apples: Common chickweed (Orchard Network, February 2004)
  • Problem Weed Series for Tender Fruit & Grapes: Common chickweed (Tender Fruit Grapevine, January 2004)
  • Common Chickweed (Stellaria media) (Crop Talk, November 2004)
  • Problem Weed of the Week: Creeping Charlie (Ground Ivy) (Hort Matters, June 2005)
  • Eastern Black Nightshade: "Biology and Management" (Crop Pest, May 2005)
  • Herbicide resistance Eastern Black Nightshades are a problem, but solutions are in sight.(Crop Pest, June 2005)
  • Resistance to Group 2 Herbicides in Foxtails in Ontario (Crop Pest, June 2005)
  • Problem Weed of the Month: Hairy Galinsoga (Hort Matters, August 2004)
  • Problem Weed of the Month: Garlic Mustard (Hort Matters, May 2005)
  • Problem Weed of the Month: Common Mallow (Hort Matters, October 2004)
  • Problem Weed of the Month: Proso Millet (Hort Matters, August 2004)
  • Problem Weed Series for Orchard & Vineyards - Quackgrass (Hort Matters, January 2005)
  • Problem Weed of the Month: Poison Ivy (Hort Matters, August 2005)
  • Problem Weeds in Strawberries (Hort Matters, August 2005)
• Poisonous Plants
  • Common Weeds Poisonous to Grazing Livestock
  • Plants You Don't Want to Touch! (Hort Matters, August 2006)
  • Poison Ivy (Order No. 99-015)
  • Problem Weed of the Month: Poison Ivy (Hort Matters, August 2005)
  • Poisoning of Horses by Plants
  • Poisoning of Livestock by Plants (Order No. 87-016)
• Resources for Weed Management - A Listing of Books, Videos, Software & Courses

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Weed Management in Field Crops

• What's New In Weeds?
• Application Technology
  • Sprayer Calibration Calculator
• Basics of Weed Management
  • Publication 75, Guide to Weed Control
  • Weed Control Glossary
  • Use of Chemicals to Control Weeds
    • Notes on Herbicides
    • Notes on Adjuvants
    • Materials, Mixtures and Mixing of Herbicides
    • Precautions with Pesticides
    • Determining Amount of Herbicides Needed
    • Applying Herbicides
    • Sprayer Application Record
    • Herbicide Companies and Agencies
  • Managing Weeds in Conservation Tillage
  • Managing Weed Resistance to Herbicides
  • Principles of Integrated Weed Management
• Beans
  • Publication 75, Guide to Weed Control
    • Beans
    • Beans (Dry, Snap and Lima) Herbicide Weed Control Ratings (Table 7-1) (PDF file - 92k)
  • Managing Weed Series: from Agronomy Guide for Field Crops
    • Dry Edible Beans: Weed Control
      • Dry Edible Beans: Herbicide Injury
• Cereals
  • Publication 75, Guide to Weed Control
    • Cereals
    • Cereal Herbicide Weed Control Ratings (Table 8-1) (PDF file - 122k)
• Managing Weed Series: from Agronomy Guide for Field Crops
  • Cereals: Weed Control
    • Cereals: Herbicide Injury
  • Spring and Winter Canola: Weed Control
    • Spring and Winter Canola: Herbicide Injury
• Corn
  • Publication 75, Guide to Weed Control
    • Corn
    • Additional Weed Control Ratings for Corn (Field, Seed and Sweet): Grasses (Table 9-1) (PDF - 214k)
    • Corn Soil Applied Tank-mixes (Table 9-2) (PDF 70k)
    • Registered "Two-Way" Soil Applied Herbicide Tank-Mixes in Corn (Table 9-3) (PDF file - 87k)
    • Registered "Two-Way" Postemergence Herbicide Tank-Mixes in Corn (Table 9-4) (PDF file - 51k)
    • Maximum Weed Leaf Stages (or Height) for Postemergence Herbicide Application in Corn (Table 9-5) (PDF file - 81k)
  • Managing Weed Series: from Agronomy Guide for Field Crops
    • Corn: Weed Control
      • Corn: Herbicide Injury
• Forages
  • Publication 75, Guide to Weed Control
    • Forage Crops
    • Forage Herbicide Weed Control Ratings (Table 10-1) (PDF file - 62k)
    • Weed Response to Various Foliage Sprays (Table 18-2) (PDF file - 62k)
  • Managing Weed Series: from Agronomy Guide for Field Crops
    • Forages: Weed Control
  • Weed Control in Horse Pastures
  • Weed Control - Be On The Lookout For "Smooth Bedstraw"
• Herbicide Information - Chemical Weed Control Products Used in Ontario:
  • Notes on Herbicides and Adjuvants
    • Adjuvants Used in Ontario (Table 5-1) (PDF file - 25k)
    • Herbicides Used In Ontario (Table 4-1) (PDF file - 207k)
    • Non Selective Herbicides Available for Preplant Site Preparation (Table 6-1) (PDF file - 41k)
  • Herbicide Groupings for Ontario (Table 4-5) (PDF file - 23k)
  • Herbicide Interval Before Rainfall Table (Postemergent) (Table 4-6) (PDF file - 45k)
  • Herbicide Companies and Agencies
  • Herbicide-Crop Rotation and Soil pH Restrictions (Field Crops) (Table 4-3) (PDF file - 80k)
  • Herbicide Injury Image Gallery
    • Spring and Winter Canola: Herbicide Injury
    • Cereals: Herbicide Injury
    • Corn: Herbicide Injury
    • Dry Edible Beans: Herbicide Injury
    • Soybeans: Herbicide Injury
  • Herbicide Mode of Action Categories (Order No. 00-061)
  • Herbicide Resistant Weeds (Order No. 01-023)
• Integrated Weed Management
  • Principles of Integrated Weed Management
  • Managing Weeds Series: Agronomy Guide
    • Field Scouting
      • Field Record Form
      • Field Scouting Form
  • Non Selective Herbicides Available for Preplant Site Preparation (Table 6-1) (PDF file - 41k)
  • Preplant Herbicide Weed Control Ratings (Table 6-2) (PDF file - 39k)
  • Postharvest Weed Control Ratings (Table 6-3) (PDF file - 38k)
• Newletter Article Index: Field Crops
  • Field Crops
  • Other Information
  • Application Technology
• Other Field Crops
  • Publication 75, Guide to Weed Control
    • Other Field Crops
    • Canola, Flax, Mustard, Sunflowers Herbicide Weed Control Ratings (Table 12-1) (PDF - 93k)
  • Managing Weed Series: from Agronomy Guide for Field Crops
    • Buckwheat: Weed Control
    • Spring and Winter Canola: Weed Control
      • Spring and Winter Canola: Herbicide Injury
    • Flax: Weed Control
    • Sunflowers: Weed Control
• Resources for Weed Management - A Listing of Books, Videos, Software & Courses
• Soybeans
  • Publication 75, Guide to Weed Control
    • Soybeans
    • Soybean Herbicide Weed Control Ratings (Table 11-1) (PDF file - 124k)
    • Weed Control Ratings for Soybeans (Table 11-2) (PDF file - 84k)
    • Soil Applied Two-Herbicide Tank-Mixes for Soybean (Table 11-3) (PDF file - 59k)
    • Registered Postemergence Two-Herbicide Tank-Mixes for Soybeans (Table 11-4) (PDF file - 83k)
    • Maximum Weed Stage for Postemergence Soybean Herbicide (PDF 78k)
  • Control Options for Group II Resistant Weeds in Soybeans (Crop Pest, April 2004)
  • Managing Weed Series: from Agronomy Guide for Field Crops
    • Soybeans: Weed Control
      • Soybeans: Herbicide Injury

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Weed Management in Horticultural Crops

• What's New In Weeds?
• Application Technology
  • Sprayer Calibration Calculator
• Basics of Weed Management
  • Publication 75, Guide to Weed Control
  • Weed Control Glossary
  • Use of Chemicals to Control Weeds
    • Notes on Herbicides
    • Notes on Adjuvants
    • Materials, Mixtures and Mixing of Herbicides
    • Determining Amount of Herbicides Needed
    • Precautions with Pesticides
      • Pesticide Regulations
    • Sprayer Application Record
    • Herbicide Companies and Agencies
  • Managing Weeds in Conservation Tillage
  • Managing Weed Resistance to Herbicides
  • Principles of Integrated Weed Management
• Fruit Crops
  • Publication 75, Guide to Weed Control
    • Berries
    • Tree Fruit & Grapes
  • Herbicide Weed Control Ratings for Fruit Crops (Table 15-1) (PDF file - 110k)
    • Tree Fruits
    • Cane and Bush Berries
    • Grapes
  • Strawberry Herbicide Weed Control Ratings (Table 14-1) (PDF file - 64k)
  • Strawberry Weed Management - New Brunswick Strawberry IPM Guide (link to PDF - 319 k)
  • Newsletter Article Index: Fruit Crops
  • Planning Your Weed Management Strategy for Orchards and Vineyards (Tender Fruit Grapevine, March 2004)
• Herbicide Information - Chemical Weed Control Products Used in Ontario:
  • Notes on Herbicides and Adjuvants
    • Adjuvants Used in Ontario (Table 5-1) (PDF file - 25k)
    • Herbicides Used In Ontario (Table 4-1) (PDF file - 207k)
    • Non Selective Herbicides Available for Preplant Site Preparation (Table 6-1) (PDF file - 41k)
  • Herbicide Groupings for Ontario (Table 4-5) (PDF file - 23k)
  • Herbicide Interval Before Rainfall Table (Postemergent) (Table 4-6) (PDF file - 45k)
  • Herbicide Companies and Agencies
  • Herbicide-Crop Rotation and Soil pH Restrictions (Hort Crops) (Table 4-4) (PDF file- 82k)
  • Herbicide Injury Image Gallery
    • Apples
    • Blueberries
    • Raspberries
    • Strawberries
  • Herbicide Mode of Action Categories (Order No. 00-061)
  • Herbicide Resistant Weeds (Order No. 01-023)
• Integrated Weed Management
  • Principles of Integrated Weed Management
  • Managing Weeds Series: Agronomy Guide
    • Field Scouting
      • Field Record Form
      • Field Scouting Form
  • Non Selective Herbicides Available for Preplant Site Preparation (Table 6-1) (PDF file - 41k)
  • Preplant Herbicide Weed Control Ratings (Table 6-2) (PDF file - 39k)
  • Postharvest Weed Control Ratings (Table 6-3) (PDF file - 38k)
• Newsletter Article Index:
  • Fruit Crops
  • Vegetable Crops
  • Specialty Crops
  • Other Information
• Ornamentals
  • Publication 75, Guide to Weed Control
    • Nursery Crops
    • Turfgrass
    • Nursery Herbicide Weed Control Ratings (Table 16-1) (PDF file - 63k)
    • Turfgrass Herbicide Weed Control Ratings (Table 17-1) (PDF file - 66k)
  • Newsletter Article Index: Specialty Crops
  • Managing Weeds Series: from Pub. 811. Agronomy Guide
    • Sunflowers: Weed Control (for cut flower crop)
• Roadsides and Rights-of-Way
  • Publication 75, Guide to Weed Control
    • Roadsides and Rights-of-Way
    • Aquatic Weed Control
    • Susceptibility of Woody Plants to Various Herbicides and Mixtures as Foliage Sprays (Table 18-1) (PDF file - 51k)
    • Weed Response to Various Foliage Sprays (Table 18-2) (PDF file - 62k)
    • Habitats and Herbicide Susceptibility of Common Aquatic Plants (Table 19-1) (PDF file - 80k)
• Resources for Weed Management - A Listing of Books, Videos, Software & Courses
• Vegetables
  • Publication 75, Guide to Weed Control
    • Herbicide Weed Control Ratings for Corn (Field and Sweet) (Table 9-1) (PDF file - 214k)
    • Vegetable Herbicide Weed Control Ratings (Table 13-1) (PDF file - 86k)
  • Newsletter Article Index: Vegetable Crops
  • Managing Weeds Series: from Pub. 811, Agronomy Guide
    • Corn: Weed Control (for sweet corn)
      • Corn: Herbicide Injury
    • Cereals: Weed Control (for cover crops, or mulch production)
      • Cereals: Herbicide Injury
    • Dry Edible Beans: Weed Control (similar to snap beans)
      • Dry Edible Beans: Herbicide Injury
    • Buckwheat: Weed Control (for cover crops)

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Application Technology

• What's New In Weeds?
  • Improving Spray Application And Reducing Spray Drift With Farm Windbreaks (Hort Matters, May 2005)
• Publication 75, Guide to Weed Control
  • Application Technology
    • Introduction
    • Care and Use of Equipment
    • Sprayer Calibration
    • Determining the Amount of Herbicides Needed
    • Materials, Mixing and Mixtures
    • Air-Blast or Mist Sprayers
      • Guide to Spraying Fruit Trees
    • Sprayer Calibration
      • Field Sprayer and Hand/Backpack Sprayer Calibration (Interactive)
      • Airblast Sprayer Calibration
    • Spraying Application Record
    • Wiper Applicators for Selective Weed Control
    • Care and Use of Equipment
    • Pesticide Drift
• Field Sprayer Calibration (Order No. 88-129)
• Flat Fan Nozzle Tips For Field Weed Sprayers (Order No. 89-110)
• Newletter Article Index: Application Technology
  • Calibration
  • Nozzles
  • Spraying Techniques
  • Drift Reduction
• OMAFRA Sprayer Calibration Calculator - Field and Backpack Sprayers
• Pesticide Contamination of Farm Water Supplies (Order No. 00-099)
• Pesticide Handling Facility (Order No. 94-037)
• Pesticide Storage, Handling and Application (Best Management Practices) (Order No. BMP13)
• Precautions With All Pesticides
• Reducing Pesticide Drift And Crop Damage (Order No. 88-118)
• Resources for Weed Management - A Listing of Books, Videos, Software & Courses
• Spot Treatments for Herbicides (Hort Matters, August 2005)
• Ways To Avoid Pesticide Spills (Order No. 96-025)

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Newsletters

• Other Newsletters Online (external link list)
• OMAFRA Newsletters
  • Crop-Pest Ontario
  • Crop Talk
  • Grower Notes - The Ontario Floriculture Update
  • Hort Matters
  • Ontario Berry Grower
  • Orchard Network
  • The Tender Fruit Grapevine
  • Vegetable Viewpoint

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Resources & Services

• Agriphone Numbers
• Crop Advisory Staff
• Herbicide Companies and Agencies
• Laboratories for Leaf Analysis
• Laboratories Accredited for Soil Testing
• Ontario Noxious Weeds
• Pest Diagnostic Clinic
• Resources for Weed Management - A Listing of Books, Videos, Software & Courses
• Sources of Crop Inputs
  • Air Induction Nozzle Manufacturers/Suppliers
  • Cover Crop Seed Suppliers
  • Plasticulture Suppliers
  • Pest Monitoring Equipment Suppliers (Partial List)
  • Safety Supply Companies in Ontario Providing Protective Clothing or Equipment
  • Sources of Agricultural Limestone For Ontario
  • Sources of Nursery and Landscape Supplies / Service

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Stats & Facts

• Ontario Field Crops Statistics
• Ontario Horticultural Crop Statistics
• Ontario Weed Committee Report
• Overview Of Canadian Horticultural Industry

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Crops Updates

• Ontario Weed Committee Report
• Ontario Field Crop Report
• National Crop Conditions Report
• Sound Advice - Audio Crop Updates
• What's Hot?- Weeds
• Crop and Pest Updates
  • Subscribe to OMAFRA Podcasts
  • Subscribe to Agriphone Messages

   

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Insects, Diseases & Weeds

• Insect Factsheets & Infosheets
• Disease Factsheets & Infosheets
• Weed Factsheets & Infosheets
• OMAFRA Weed Identification Quiz
• OMAFRA Poisonous Plant Quiz
• OMAFRA Sprayer Calibration Calculator
• Ontario Noxious Weeds
• Crop Updates and Agriphone Messages
• Pesticide Information

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Links

• Ontario Noxious Weeds
• Syngenta Weed Guide
• Weed Links

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  Related Topics

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