Back to Research & Demonstration

Altosid® IGR mineral supplement impacts on horn fly populations on beef cattle in Manitoba

 

Project Details

  • Project Lead:  Manitoba Beef & Forage Initiatives

  • Collaborators: Cargill Feed & Nutrition, Central Garden & Pet, Manitoba Agriculture

  • Years: 2021

  • Project Status: Complete

  • Funding & In-Kind Support: Canadian Agricultural Partnership, Central Garden & Pet

  • Location: Brookdale Farm, First Street Pasture, Johnson Farm

  • Scope: Demonstration

  • Keywords: Livestock Pest Control, Livestock Performance

Approach

Determine the efficacy of Altosid® IGR in cattle mineral at 0.01% (S)-Methoprene for the control of horn flies (Haematobia irritans) on cow-calf pairs.

Key Findings

Horn Flies:

  • Peak horn fly numbers from mid-July to early September

Mineral Consumption:

  • Mineral consumption was variable over time

Altosid® IGR control:

  • Treated group had a lower number of horn flies than control group

  • Treated group exceeded the economic threshold for horn flies six times

Average number of horn flies per side of animal calculated from weekly pictures of treated and control herds. Economic threshold shown as 100 horn flies per side of animal for beef cattle production.

Full Reports:

Industry Resources: