Fleas

Question 1

Repellent effect

Answer 1

Agent causes parasite to move away from treated area

Question 2

Flushing effect

Answer 2

Agent causes parasite to leave host

Question 3

Anti-feeding effect

Answer 3

Agent alters biting and feeding after contact

Question 4

Knockdown

Answer 4

A measure of immediate rate of kill

Question 5

Siphonapterosis

Answer 5

Disease caused by infestation with fleas

Question 6

Ctenocephalides felis hostshj

Answer 6

Cats and dogs

Question 7

Ctenocephalides canis

Answer 7

Rare

Dog and cat

Question 8

Pulex simulans host

Answer 8

Dog and cat

(P. irritans(

Question 9

The cat flea

Answer 9

Ctenocephalides felis felis

Question 10

T/F All pets are hosts to fleas

Answer 10

T

Question 11

How to tell difference between flea species?

Answer 11

Look at the hair in the tarsal segment of hind limb

Question 12

What’s the more important stages in flea life cycle

Answer 12

Egg
Larva
Pupa

Question 13

T/F Majority of stages remain off the host

Answer 13

T

Question 14

What can determine flea egg hatch

Answer 14

Temperature dependent

Question 15

Most susceptible stage in flea LC

Answer 15

Larvae

Question 16

T/F Larvae are resistant to heat and desiccation

Answer 16

F

Susceptible

Question 17

Emergence of fleas can be prolonged to how long.

Answer 17

6 mo

Question 18

Entire life cycle of fleas can be

Answer 18

12-14 days

Question 19

Pupal window

Answer 19

When you start to see pupa stage

Can be up to six months

Question 20

Important survival factor for flea

Answer 20

Microhabitat

• Feed on frass (blood) or non viable eggs
• Overwinter

Question 21

What can fleas induce?

Answer 21

Flea allergy dermatitis AKA flea bite hypersensitity

Question 22

Papular urticaria

Answer 22

Flea bite hypersensitivty in man

Question 23

Flea allergy dermatitis (FAD)

-Causes lesions where

Answer 23

Lumbo-sacral region, caudal thighs, proximal tail, ventral abdomen

Question 24

Flea allergy dermatitis (FAD)

-How

Answer 24

Flea bite introduces salivary proteins that cause an allergy response in host

Question 25

Onset of FAD

Answer 25

3-5 yrs

Question 26

Characteristic of FAD lesions

Answer 26

Papules, crusts, alopecia, secondary infections

Question 27

FAD salivary Ag

Answer 27

Haptens may combine with dermal collagen to become more potent allergens

Allergy induced by repeated exposure to Ag

Question 28

Flea as vectors

• Bacteria
• Helminths

Answer 28

Bacteria: Bartonella, typhus

-D. caninum, D. reconditum

Question 29

Issues important to control

Answer 29

95% environment

5% pet

Question 30

Integrated flea control

Answer 30

Combo of chemical and mechanical means that target both animal and its environment

Question 31

Examples of integrated flea control

Answer 31

Host-targeted insecticides
Environmental insecticides
Mechanical methods (vacuum, washing, remove vegetation, leaning)

Question 32

Pet-targeted intefrated flea control

Answer 32

Use both adulticides and IGRs/IDIs

Less likely to create resistance

Question 33

Insect growth regulators and insect development inhibitors

Answer 33

Disrupt egg and larval development

Question 34

Mechanism of juvenile hormone treatment

Answer 34

Juvenile hormone receptor binds to IGR which prevents JH from binding to development is inhibited.

Cats, dogs, humans lack IGR receptor

Question 35

Mechanism of BPU

Answer 35

Disrupts chitin formation of flea