Much attention is paid to internal parasites in horses, but external parasites are not only a nuisance, but can also be a source of serious health threats to horses. During cold winter months, most horse owners think that the cold will keep the parasites away, but some find happy camping grounds when hair is longer.
Controlling external horse parasites
In addition to the well-known threats from mosquitoes, ticks and bot flies, the discomfort and health threats from lice, mites, and biting flies affect both horses and horse owners.
In addition to the well-known threats from mosquitoes, ticks and bot flies, the discomfort and health threats from lice, mites, and biting flies can be grievous to horse owners and horses alike.
Lice
Two types of lice affect many areas. The biting louse and the blood sucking louse are the two types often found on horses. The blood sucking lice are more injurious because heavy infections mean a heavy loss of blood that may seriously weaken animals.
Lice occur in largest numbers in the winter months when the hair is long. Infections spread from animal-to-animal in adjacent stalls around managers.
Sucking lice are usually found on the head, neck, back and inner surface of the thighs. Biting lice may be found any where on the body, although they seem to occur in greatest numbers around the withers and the base of the tail. The biting lice feed on the hair and scales from the skin.
Mites - Horse Mange
Mites cause skin diseases known as mange, barn itch, scab and scabies. Transmission is by direct contact between healthy and infested animals, or by means of contaminated equipment.
Horses seek relief by rubbing affected areas of the body against any available object. The constant rubbing will cause skin to become swollen and enflamed and sometimes cause skin to rupture.
Biting horse flies
Several kinds of flies suck blood from horses. These may include: horn flies, horse flies and deer flies, stable flies and in some eases, black flies. The main damage that these flies do is annoyance to the horse although injuries to the skin from bites may become infected.
Controlling these parasites leads to greater comfort and health for your horse. Methods vary, according to the individual parasite and many commercial products including shampoos, sprays, and insecticides are available aimed at external parasite control. In addition, horse owners should make sure that breeding sites for parasites are cleaned up regularly.
Read more about Parasites