Parasites and insects Flashcards
What is the most common physical form used in administering antiparasitic compounds to horses?
Paste
What is the least safe class of dewormer?
Organophosphate
Parasites that attack the skin and body openings of the host are called what?
External parasites or ectoparasites
About how much money is spent on fly control each year in the U.S.
$270 million dollars
What are two species of lice infestation of the horse?
Haematopiuns and the Damalinia Equi
Where on the horse do “bot eggs” hatch?
In the horse’s mouth
What are “Musca Domestica?”
House flies
What do male and female stable flies eat?
blood
What is the toxic material from the blister beetle?
Cantharidian
What insect causes Lyme disease?
Ticks
What is the foundation for any successful fly control program?
Sanitation
What is the most feasible, non-chemical means of breaking the life cycle of the fly?
Removing breeding material
Tiny eight-legged relatives of spiders that cause dermatitis and intense itching which we call mange are called what?
Mites
What insect is the most detrimental to horses when they contaminate forage?
Blister beetles
What is the Latin name for bloodsucking stable flies?
Stomoxys calcitrans
What is the Latin name for face flies?
Musca autumnalis
What is the Latin name for horn flies?
Haemalobia irritans
How long is the average life cycle of a mosquito?
10-14 days
What is the latin name for the throatbot fly?
Gastrophilus nalasis
What is the range of amount of eggs a female bot fly lays?
150-500
True or False? The female botfly lays eggs on the horse’s hair.
True
What is the latin name for the sarcoptic mite?
Sarcoptes scabiei varequi
Does the mite that causes psoroptic mange burrow beneath the skin?
No
What do blister beetles cause?
Fluid filled eruptions
True or False? Blister beetles dwell in Timothy hay?
False, they dwell in Alfalfa hay
Parasites that live in the internal organs, body cavities and tissues are called what?
Internal parasites or endoparasites
How many internal parasites are known to affect the horse?
More than 150
What is the most common type of internal parasite in the horse?
Strongyles
How long is the cycle of a round worm?
92 days
What is the length of the roundworm lifecycle?
3 months
Stomach bots are the larvae of what fly?
Bot
What are the stomach bots?
Larvae of the bot fly
How long is the entire life cycle of the bot fly from egg to adult?
One year
What type of worms causes a severe irritation around the tailhead?
Pinworms
What is another name for strongyles?
Blood worms
Tapeworms occur in what age horses?
All ages
What is another name for ascarids?
Roundworms
What is another name for strongyloides?
Threadworms
Strongyloides are found in what age foals?
4-47 days
