Species composition of Gasterophilus spp. (Diptera, Oestridae) causing equine gastric myiasis in southern Italy: parasite biodiversity and risks for extinction. Vet Parasitol. Jan 15;() doi: / Epub Nov Gasterophilus spp. infections in horses from northern and. Biology, prevention and control of HORSE BOT FLY infections, Gasterophilus spp . Species, occurrence, distribution, incidence, prevalence, life.
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Prevalence and incidence are regionally very different and depend strongly on climatic and ecologic conditions. Most species lay eggs in early summer.
Adult bot flies then gasherophilus and the cycle repeats. Insect pests of horses continued. The eggs are essentially stalk-less and are attached near the tip of the hair.
Gasterophilus – Wikipedia
The pupae are known to be sensitive to frost, moisture and flooding, so the environmental conditions present play a significant role in the success of the parasite. Adult flies are 9 to 16 mm long, with a hairy, bumble bee-like hairy aspect, with black and yellow hairs. In most cases, infections do not go beyond a mild gastritis, and even relatively large number of larvae in the stomach may cause no clinical signs.
After development inside the host, the larvae leave it with the feces. There are a couple of ways to do this, which include using a sharp edged tool to scrape them off or using insecticide from the veterinarian. You can find additional information in this site on the general biology of insects and on the parasitic flies. Usually only one generation is produced each year. Otherwise, a complete checkup will be needed to rule out other conditions.
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The larvae either crawl to the mouth or are ingested and subsequently bury themselves in the tongue, gums, or lining of the mouth and remain for approximately 28 days. The adult female lifespan lasts seven to 10 days Williams and Knapp Book First Walk Free!
Lateral view of an adult horse bot fly, Gasterophilus intestinalis DeGeer. This page was last modified on 4 Juneat Retrieved from ” https: The larvae are excreted in the fecal matter, so it is important to clean up the feces on a regular basis.
The female’s abdomen is elongated, curled under and serves as an ovipositor Zurek L2 were collected in February-March and from September to December Field observations of the host-parasite relationship associated with the common horse bot fly, Gasterophilus intestinalis.
Repellents provide usually only a few hours protection, if at all, and may not properly protect the whole body surface of the gwsterophilus. Veterinary Significance Back to Top The horse bot fly causes indirect damage to the horse through attempts at egg laying.
Gasterophilus spp in Horses
The eggs develop into first instar larvae within five days of being deposited by the female. Loss of appetite may gasteropphilus due to the larva’s inhabitance Mullen and Durden Abdominal x-rays and ultrasound will be used to check for any damage or blockages in the intestines or stomach.
Horse gastrointestinal myiasis caused by larvae of Gasterophilus spp. This article has been peer reviewed but is awaiting expert review.
Gastrus Meigen After the fly emerges from the pupa, it quickly finds a mate. Other health issues that may develop due to a severe infestation of these larvae include: Dispersal is also ensured gasteroohilus movements of hosts infected with larvae. They are laid in different areas according to species; G.