OMAFRA Resources

Pub 811 - Agronomy Guide for Field CropsPub 811 – Agronomy Guide for Field Crops

This publication is a comprehensive guide to field crop production. The latest recommendations on all aspects of producing field crops are included. Information on tillage options, soil management, variety selection, seeding, fertility, harvest, storage and more make this an important tool for a better bottom line. Descriptions of crop problems and more than 150 colour plates help with quick diagnosis. Diagnostic guides and scouting calendars make this publication a useful resource. Read online

Pub 812 - Field Crop Protection GuidePub 812 – Field Crop Protection Guide

Publication 812, Field Crop Protection Guide, is the source of pest control information for field crops. The easy to read tables provide information and comments on insect and disease control products for the major field crops including best control options for integrated pest management for each insect and disease. Publication 812 is a companion to Publication 811, Agronomy Guide For Field Crops. Read online

Pub 75 - Guide to Weed ControlPub 75 – Guide to Weed Control

Discard old editions of this publication. Each year the appropriate sub-committee of the Ontario Pest Management Research and Services Committee reviews the pesticides listed in this publication. To the best knowledge of the committee, at the time of printing, the pesticide products listed in this publication were federally registered and classified by the Ministry of the Environment and Climate Change (MOECC). The information in this publication is general information only. The Ontario Ministry of Agriculture, Food and Rural Affairs does not offer any warranty or guarantee, nor do they assume any liability for any crop loss, animal loss, health, safety or environmental hazard caused by the use of a pesticide mentioned in this publication; nor does Grain Farmers of Ontario. This publication lists a number of brand names of pesticides. It is neither an endorsement of the product nor a suggestion that similar products are ineffective. Read online

Field Guides

Guide to Early Season Crop PestsGuide to Early Season Crop Pests

This guide is a tool to help identify pests that attack field crops early in the growing season. Under each pest, the guide outlines how to identify the pest, explains their life cycle and the damage they cause. It also details scouting techniques, thresholds and integrated pest management strategies including cultural, biological and chemical control. Additional information on protecting natural enemies as well as pollinators is also available at the end of the guide. This guide provides the basics for establishing an integrated pest management strategy for soil borne and early season pests in field crops, which will help target the use of insecticide treated seed to where it is necessary. Download .pdf (5.82 MB)

Identifying Wheat Diseases Affecting Heads and GrainIdentifying Wheat Diseases Affecting Heads and Grain

Guide to wheat diseases affecting heads and grain. Covers diseases visible at head emergence, diseases visible during grain development, diseases visible just before harvest and diseases causing problems in other countries. Learn to recognize common wheat diseases: loose smut, fusarium head blight, stagonospora glume blotch, black chaff, sooty molds, common bunt/dwarf bunt, ergot, and wheat blast. Download .pdf (8.12MB)

Weed ID Guide for Ontario CropsWeed ID Guide for Ontario Crops

Recognize over 120 species commonly found in and around agricultural fields. Print copies are available to be ordered on-demand here. Download .pdf (8 MB)

Crop Protection Network

Grain Farmers of Ontario sponsors the Crop Protection Network, an international partnership of university and provincial Extension specialists, and public and private professionals that provides unbiased, research-based information.

For harvest 2018, Ontario grain farmers may be interested in these selected Crop Protection Network publications (additional publications are available for download on the Crop Protection Network website):