Fill in the Blanks Equine Stomach WormOnline version Equine stomach worm info and lifecycle by Ashley Best 1 eggs stomach gastritis mouth lesions horses days pasture maggots Probenzimidazole fly eats on juvenile 60 fly Benzimidazoles diarrhea indirect no Habronema muscidae colic stomach ingests The equine stomach worm is known as . Zoonotic ? The lifecycle is . Its prepatent period is It infects . It is transmitted via It resides in the or skin . Its lifecycle is as follows . 1 ) are deposited in the feces 2 ) fly eat eggs 3 ) eggs hatch and mature 4 ) grows to and migrates to the fly's 5 ) fly horse and releases juveniles or horse fly 6 ) larvae mature in 7 ) eggs are released in feces Symptoms of heavy infections include , , and . It is treated with , , management , and control .