Fill in the Blanks Equine Stomach WormOnline version Equine stomach worm info and lifecycle by Ashley Best 1 on pasture maggots eats days fly indirect gastritis Benzimidazoles juvenile lesions no mouth Habronema colic 60 ingests fly stomach horses muscidae diarrhea stomach Probenzimidazole eggs 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 .