This Product Information Sheet is not intended to replace the Product Label. Always read the Product Label for the most current nutrient content and feeding directions.

Product #57931

Bovalyx® 25-12 with Altosid® IGR

Product number: 57931

Product Information

Prevents adult horn fly emergence from manure of treated cattle.

A nutritional supplement containing (S)-Methoprene* Insect Growth Regulator for continuous feeding to cattle through the horn fly season.

Altosid® is a registered trademark of Wellmark International

Feeding Instructions

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.


This pesticide product is to be used as a cattle feed-through pesticide for the control of horn flies. All feed ingredients listed on this product label must adhere to the specifications and limits (if applicable) ascribed by the Food and Drug Administration (FDA) for cattle feed use when mixed with this pesticide product. This product contains ethoxyquin, a preservative. The amount of ethoxyquin may vary according to the individual manufacturer’s formulation and will not exceed the 150 ppm maximum limit established for ethoxyquin by FDA, per 21 CFR 573.380.


Feed this product to cattle only. When used as directed, BOVALYX 25-12 with Altosid IGR will provide sufficient (S)-methoprene insect growth regulator to prevent the emergence of adult horn flies from manure of treated cattle. Existing adult horn flies will not be affected. Start feeding before horn flies appear and continue use until cold weather marks the end of the horn fly season. Allow free choice to cattle. Cattle should consume an average of 0.8 ounce of BOVALYX 25-12 with Altosid IGR per 100 lbs. of cattle body weight per day, which is equivalent to 8 ounces per day for a 1,000-pound cow.

To Open: Remove top plastic cover sheet.

  1. Assure cattle are not starved for nutrients prior to feeding BOVALYX 25-12 with Altosid IGR.
  2. This product contains added copper. Do not feed to cattle in close proximity to sheep or other species that have a low tolerance to supplemental copper.
  3. Offer cattle 200 pounds of BOVALYX 25-12 with Altosid IGR for every 15-25 head of cattle.
  4. Remove all other self limiting nutritional supplements while the cattle are consuming this product.
  5. Locate BOVALYX 25-12 with Altosid IGR where cattle congregate (watering, loafing, shade areas).
  6. Replenish BOVALYX 25-12 with Altosid IGR on a regular basis as needed.
  7. If intake of BOVALYX 25-12 with Altosid IGR is below 0.8 ounce per 100 pounds cattle body weight per day, increase the number of feeding locations and/or change location(s) to areas more frequented by cattle.
  8. If intake of BOVALYX 25-12 with Altosid IGR is above 0.8 ounce per 100 pounds cattle body weight per day, reduce the number of feeding locations and/or change location(s) to areas less frequented by cattle.
  9. Introduction of this product after adult horn fly infestation is established will require treatment of cattle with adulticides if elimination of the adult fly population is desired.

STORAGE AND DISPOSAL: Do not contaminate water, food or feed by storage or disposal. STORAGE: Store in a cool, dry place. PESTICIDE DISPOSAL: Wastes resulting from the use of this product may be disposed of on-site or at an approved waste disposal facility. CONTAINER HANDLING: Nonrefillable container. Do not reuse or refill this container. Offer for recycling if available or puncture and dispose of in a sanitary landfill or by incineration, or, if allowed by state and local authorities, by burning. If burned, stay out of smoke.

Nutrition Information

Crude Protein, Min25.00%
Crude Fat, Min5.00%
Crude Fiber, Max3.00%
Calcium, Min1.00%
Calcium, Max1.50%
Phosphorus, Min1.00%
Salt, Minnone added
Magnesium, Min1.00%
Potassium, Min2.00%
Cobalt, Min3 ppm
Copper, Min300 ppm
Iodine, Min15 ppm
Manganese, Min1,200 ppm
Selenium, Min6.0 ppm
Zinc, Min900 ppm
Vitamin A, Min70,000 IU/lb
Vitamin D-3, Min7,000 IU/lb
Vitamin E, Min50 IU/lb

Product Ingredients

Active Drug Ingredient:
Other Ingredients...............99.995%

*As the Insect Growth Regulator ALTOSID®

Molasses Products, Processed Grain By-Products, Plant Protein Products, Urea, Hydrolyzed Vegetable Oil, Monocalcium Phosphate, Dicalcium Phosphate, Magnesium Oxide, Calcium Carbonate, Manganous Oxide, Manganese Sulfate, Zinc Sulfate, Zinc Oxide, Copper Sulfate, Ethylenediamine Dihydroiodide, Calcium Iodate, Cobalt Carbonate, Sodium Selenite, Vitamin A Supplement, Vitamin D-3 Supplement, Vitamin E Supplement and Mineral Oil.