Weeds, Insects & Diseases

Dwarf Bunt [Tilletia controversa ]


Images

No image for this pest exists.


Disease Biology

Carried on seed or may live for up to 7 years in soil. Only affects winter wheat. Infection takes place from December - February. Once the fungus infects the plant, it grows systemically throughout the plant and in spring, replaces kernels with bu...


View full description of Disease-Biology


Damage Description

Will cause excessive tillering and stunting of the plant. Leaf lesions begin on the lowest leaves and tend to be irregular in shape, becoming pale, straw coloured and slightly necrotic (more common on winter wheat). Causes loss of both yield and grade.


View more info Damage Description


Management

If using seed that is suspect to contamination of this disease, a fungicide should be used. Avoid seeding winter wheat in fields that are infected with the pathogen.


View Management info

Recommended solution

  • Cruiser Vibrance Quattro logo

    Cruiser® Vibrance® Quattro is a ready-to-use, water-based seed treatment formulation for use in commercial seed treatment facilities or on-farm, for the control of certain insect pests and seed- and soil-borne diseases in cereal crops.

Description

Carried on seed or may live for up to 7 years in soil. Only affects winter wheat. Infection takes place from December - February. Once the fungus infects the plant, it grows systemically throughout the plant and in spring, replaces kernels with bunt balls. Favoured by cool soil temperatures. Found in Ontario and interior British Columbia in areas with prolonged snow cover. There has never been a reported case on the prairies, likely because the prairie winters are too cold for its establishment.

Damage Description

Will cause excessive tillering and stunting of the plant. Leaf lesions begin on the lowest leaves and tend to be irregular in shape, becoming pale, straw coloured and slightly necrotic (more common on winter wheat). Causes loss of both yield and grade.

    Management

    If using seed that is suspect to contamination of this disease, a fungicide should be used. Avoid seeding winter wheat in fields that are infected with the pathogen.

    Recommended solution

    • Cruiser Vibrance Quattro logo

      Cruiser® Vibrance® Quattro is a ready-to-use, water-based seed treatment formulation for use in commercial seed treatment facilities or on-farm, for the control of certain insect pests and seed- and soil-borne diseases in cereal crops.