Cereals: Seedling Diseases

Excerpt from Agronomy Guide for Field Crops (Chapter 6)

Order OMAFRA Publication 811: Agronomy Guide for Field Crop

Table of Contents

1. Introduction
2. Updates on Cereals: Seedling Diseases
3. Related links...

Introduction

Organisms that colonize seed and soil are responsible for many of the most damaging diseases in cereal crops. These organisms are responsible for early-season seed rots and seedling blights as well as the smut (bunt) diseases of the grain.

Plate 108. Seedling blights are caused by several organisms. Many seedlings fail to emerge or emerge looking yellow with brown or red-brown rot on the lower stem.

Disease management of these organisms begins with the use of good-quality, clean seed. All wheat seed needs to have a fungicide seed treatment applied to control soil-borne and seed-borne diseases, such as seed rots and seedling blights, seed-borne Septoria, seed-borne Fusarium seedling blight, seed-borne dwarf bunt, common bunt and loose smut. The best protection against seedling blights, smut and the bunts can be achieved through the use of a seed treatment that contains a combination of fungicides, since no one fungicide is effective against all these diseases. Good coverage of the seed is essential, since seed treatment performance may be reduced. Significant yield losses continue to occur from these diseases in fields where fungicide seed treatments have not been used.

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Updates on Cereals: Seedling Diseases

• Field Crop Protection Guide - Publication 812
  • Table 5-2: Wheat Seed and Soil-Applied Fungicide Recommendations
  • Cereals: Wheat: Seed Rots and Seed-Borne Diseases
  • Cereals: Wheat: Common Root Rot (Common Blight)
  • Cereals: Wheat: Seed-Borne Septoria
  • Cereals: Wheat: Fusarium (Seed-Borne, Seed Rot, and Seedling Blight)
  • Cereals: Wheat: Common Root Rot (Common Blight)
  • Cereals: Wheat: Fusarium Crown and Foot Rot
  • Cereals: Wheat: Pythium Damping Off
  • Cereals: Wheat: Penicillium and Aspergillus Seed Rot
  • Table 5-4: Barley, Oats and Rye Seed and Soil-Applied Fungicide Recommendations
  • Cereals: Barley: Seed Rot and Seedling Blight
  • Cereals: Barley: Cochlibolus Seedling Blight
  • Cereals: Rye: Seedling Blight

Related links...

• Diseases
• Cereals

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