![]() ![]() The larvae (maggots) attach in the stomach or intestine and remain there as parasites until the following summer. The eggs hatch in response to moisture and friction as horses lick or nibble at areas where the eggs are attached. They do not bite but can frighten horses and cause them to run. The flies are active from mid-June until frost. Horse bots are bumble-bee like flies that glue their eggs (nits) primarily to hairs on the forelegs or under the jaw. Prozap Insectrin Dust for Livestock & Poultry 0.25% permethrin.Co-Ral Zipcide Equine & Livestock Dust (1%).The ingredients may be misted on or applied with a sponge, cloth, or glove wipe. Sprays and Wipes often come ready-to-use a in pump-spray bottle. Talk with your veterinarian immediately if signs continue. If signs of sensitivity occur, bathe your horse with a mild, non-insecticidal shampoo, and rinse with large amounts of water. Sensitivity may occur after using any insecticide on animals. Reapply each time the animal is washed or exposed to heavy rain. Also, look for age restrictions, some products should not be applied to foals under 3 months of age. Check the label directions for re-treatment intervals. Always apply to the face as a wipe and keep the insecticide away from eyes and mucous membranes. Follow label instructions to protect yourself from exposure to the product when treating. Pay special attention to legs, belly, shoulders, neck, and face. Then, apply products over areas to be protected while brushing lightly against lay of the hair. Thoroughly brush horses before treatment to remove excess dirt and dust. Check to be sure that the pests you want to control are listed on the label. Products listed as concentrates must be diluted before use but may provide a more economical means of pest control in some situations. In general, the higher the concentration of active ingredients in a product, the longer the protection it affords. Representative products in this publication are grouped by application method and listed in increasing concentration of active ingredient. They affect the nervous system of these arthropods, sometimes causing them to leave before they finish feeding. Pyrethrins and pyrethroids work against a wide range of horse pests from flies and gnats to ticks and lice. They are more stable than pyrethrins so protection from an application typically lasts for several days. The pyrethroids cypermethrin, permethrin, and resmethrin are synthetic forms based on natural pyrethrins. ![]() Piperonyl butoxide is a synergist that is included in products to increase effectiveness however, pyrethrins are broken down by sunlight so the residual protection lasts for only a few hours. Pyrethrins provide very quick knockdown of insect pests and are safe for use on animals. Pyrethrins are chemicals with insecticidal properties that are extracted from the flowers of some species of Chrysanthemum. The most common active ingredients in products labeled for pest control on horses are pyrethrins and pyrethroids. Often, additives are included to extend the length of protection or to provide some other feature to set the product apart from competitors. Most have one or more of 3 main active ingredients. pyrethrins) that will let you recognize exactly what the product contains. Each insecticide active ingredient has a common name (e.g. ![]() This information appears in a box below the brand name and includes the common name of the active ingredients (a.i.) and its % concentration. While there seems to be a bewildering array of products, the list of active ingredients on each label will allow you to sort through them and look for similarities and differences. This publication provides representative types of products and points to consider in selecting control measures. A wide range of products are available but most contain only one or two common active ingredients. In many cases, the breeding sites or sources cannot be managed so efforts must be directed at protecting the animals. Key pests can vary regionally and are greatly affected by seasonal weather. Several species of nuisance and blood-feeding flies, lice, and ticks attack horses from spring through fall. No endorsement is intended for products mentioned, nor is criticism meant for products not listed. Many insecticides are sold under brand names that are not listed in this publication. Any statements in this publication that disagree with the label must be disregarded. Also, pesticide labels and registrations may change at any time. Always read the product label carefully before buying and using any pesticide. This publication contains only a portion of the important information included on pesticide labels. University of Kentucky College of Agriculture ENTFACT-513: Insect Control for Horses, Horse Barns, and Stables | Download PDF by Lee Townsend, Extension Entomologist ![]()
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