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Parasitology > Chemical control of arthropods > Flashcards

Chemical control of arthropods Flashcards

1
Q

Give an example of a repellent

A

Citronella

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2
Q

DEET, dipropyl isocinchomeronate and piperonyl butoxide are examples of what kind of chemical control?

A

Repellents

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3
Q

How do growth regulators work?

A

They are analogues of insect growth hormones and interfere with growth/moult/egg laying of the parasite.
THEY DO NOT KILL IMMEDIATELY

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4
Q

What is the mechanism of action of Chlorinated hydrocarbons?

A

Interfere with ion transport across axones, producing a hyperexcitability

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5
Q

What drug classes work by inhibiting acetylcholine esterase?

A

Carbamates and organophosphates

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6
Q

Which drug class works by acting on sodium channels?

A

Pyrethroids

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7
Q

What drug class is toxic to fish?

A

Pyrethroids

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8
Q

What drug class acts on glutamate-gated chloride channels?

A

Macrocytic lactones

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9
Q

What is the mechanism of action of formamidines?

A

Inhibit mono-amine oxidase

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10
Q

What is a complication of carbamates and organophosophates for vertebrates? How would you treat it?

A

Toxicity: parasympathomimetic stimilation

Treat with atropine

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11
Q

What drug class persists for 4-6 weeks?

A

Carbamates

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12
Q

Which drug class is banned for use in food animals?

A

Chlorinated hydrocarbons

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13
Q

What organophosphates are used for flea treatment?

A

Malathion, Cythioate and Dichlorvos

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14
Q

What organophosphates is used for sheep blowfly?

A

Diazinon

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15
Q

What organophosphate is used for horse bots?

A

Tichlorphon

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16
Q 
Which class of drugs blocks different receptors including nicotinic and GABA receptors? 
Can you give an example of each respectively?
A

Neo-nicotinoids
Nicotinic receptor - Imidacloprid
GABA receptor - Fipronil

17
Q

To which drug class do Avermectins belong?

A

Macrocytic lactones

18
Q

Which growth regulators are used for the control of fleas?

A

Methoprene, Lufenuron, pyriproxyfen

19
Q

What two drug classes are used in the control of cattle tick?

A

Formamidines - Amitraz

Growth regulators - Fluazuron

20
Q

What drug class is used in the control of demodectic mange?

A

Formamidines - Amitraz

21
Q

How long do organophosphates persist in the environment?

A

24 hours to 12 weeks

22
Q

Which drug class is developed from streptomyces spp?

A

Macrocytic Lactones

23
Q

Which drug class can be administered parenterally?

A

Macrocytic lactones

24
Q

Which drug class persists for really long times in the environment?

A

Chlorinated hydrocarbons

Parasitology (3 decks)

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