On this episode of the Uplevel Dairy Podcast, Peggy Coffeen is back with Dr. Mike Catangui, of MWI Animal Health, to chat about natural insecticides for dairy farm fly control.

Dr. Mike describes growing dairy interest due to milk safety concerns about residues, environmental and sustainability expectations from consumers, and reduced risk of insect resistance. He outlines practical use of natural pyrethrins (derived from plants) that can be sprayed directly on calves, heifers and cows, and in sensitive areas where synthetic products may be restricted, supported by improved application tools like battery-powered foggers.

He cites research showing stable flies can reduce milk production 10–20% during fly season and estimates a strong ROI, including a prior calculation of $27 gained per $1 spent.

This Episode is Brought to you by MWI Animal HealthAt MWI Animal Health, we are your partner in animal health. Our people drive us to think forward every day. We are committed to working with you to identify cutting-edge solutions to your common challenges. We unite with innovators and manufacturers to provide access to products and solutions designed to help you find success in each aspect of your animal health business. Visit www.MWIAH.com for more information.

• 00:00 Meet Dr. Mike Catangui
• 01:32 What Natural Insecticides Are
• 03:13 Why Dairies Want Natural Options
• 04:57 How Pyrethrins Are Used
• 06:07 Calves & Heifers: Direct Spray Benefits
• 09:34 Milk Loss From Flies
• 10:14 Fly Control ROI Math
• 12:58 Wrap Up And Resources