Tag Archives: Malathion

Treatment of Pastern Dermatitis

The appropriate therapy obviously involves identification of the predisposing, perpetuating, and primary factors. In general, avoiding pastures/paddocks with mud, water, or sand may minimize predisposing factors. Keeping patients stalled during wet weather and until morning dew has dried is often rewarding. Use of alternate sources of bedding may be beneficial because the chemicals in treated… Read More »

Fly Control

Flies (Diptera) are ubiquitous pests of horses. The general life cycle of flies includes four stages: egg, larva, pupa, and adult. Flies that depend most on domestic animals for energy sources are the easiest to control. In some species of flies, the adults use domestic mammals as a primary energy source (e.g., horn flies). However,… Read More »

Mites and Ticks

Mange (Mite Infestation) Ticks Horses are exposed to a number of species of ticks, according to the geographic area (). The importance of ixodid (“hard”) ticks is mainly due to the transmission of infectious diseases like babesiosis or ehrlichiosis. However, a direct effect can be observed due to the skin damage, mechanical irritation, and pain… Read More »


Ectoparasites, most of which are arthropods, are those parasites that live on the body of the host. Some spend their entire life on the host, others spend only parts of their life on the host, while still others only occasionally visit the host. The ectoparasites most veterinarians deal with direcdy are those that live all… Read More »


(Arachnida) Mites can be divided into two major groups: sarcoptiform and nonsarcoptiform mites. The sarcoptiform mites can be subdivided into those that burrow or tunnel within the epidermis and those that do not. Sarcoptiform mites are distinguished from nonsarcoptiform mites by possessing a round to oval-shaped body. The legs of sarcoptiform mites also have pedicels… Read More »


(Arachnida) Ticks are divided into two families: the Argasidae (soft ticks) and the Ixodidae (hard ticks). Table Important Characteristics of Soft and Hard Ticks outlines the important characteristics of each family. Ticks: Life Cycle • Simple metamorphosis with larval and nymphal stages resembling adults. • Separate sexes with females laying eggs off the host. •… Read More »