Intervet/Schering-Plough Animal Health introduces its two-step tag and pour fly control program, combining Double Barrel VP TM Insecticide Ear Tags and Ultra Saber® Pour-On for fast-acting and long-lasting fly control. The two products work in combination to control horn flies for the entire grazing season. Severe fly infestations can reduce the animal’s ability to gain weight, costing cattle producers more than $876 million annually.

“The tag and pour program has been proven as an efficient way to control horn flies and keep them below economic thresholds,” said Norm Stewart, DVM, Technical Services Veterinarian, Intervet/Schering-Plough Animal Health. “The pour-on provides rapid knock-down of the existing horn fly population, while the ear tags offer long-lasting control. We encourage cattle producers to read and follow label instructions and apply one ear tag in each ear of the animal.”

Double Barrel VP Insecticide Ear Tags are the only cattle insecticide on the market combining the two most powerful insecticide classes needed to fight face flies and horn flies - a pyrethroid to kill and repel face flies and an organophosphate to kill horn flies. Combining both insecticide classes minimizes the risk of developing resistant flies while delivering excellent control of both chemical classes. Cattle benefit from the ear tag’s season-long insecticide disbursement as it controls fly populations, resulting in minimal season-long fly populations.

Ultra Saber Pour-On, the latest generation of low-volume pyrethroid products, provides a high bioactivity synergized insecticide for fly control. The product delivers initial rapid knockdown of adult fly populations from initial application.

In a 17-week study conducted in South Florida and involving two-year old heifers, the combination of Ultra Saber Pour-On with Double Barrel VP Insecticide Ear Tags significantly reduced horn fly populations, keeping the fly count well below the economic threshold. With a pre-treatment fly average of 316 horn flies per head, the tag and pour fly control program reduced flies to an average of 10 flies per head by week 17.

“Along with controlling fly populations, a tag and pour fly control program also should be considered as part of a defensive plan for pinkeye,” added Stewart. “Fly control should be the key focus for farmers and ranchers during the spring, summer and fall seasons.”

Taking a stand against pinkeye requires a three-pronged approach that includes vaccination, environmental management and fly control. A tag and pour fly control program can help prevent the spread of pinkeye from face flies that carry strains of Moraxella bovis. A broad-spectrum vaccine along with environmental management practices, including pasture, mowing, dust control and man-made or natural shades will help minimize the effect of the disease.

For additional information on the tag and pour fly control program, Double Barrel VP Insecticide Ear Tags and Ultra Saber Pour-On products, visit or ask your veterinarian or animal health supplier for more information.