Prevention of Lice and Cockroaches Flashcards
1
Q
distinguishing characteristics of lice
A
- pediculus humanus humanus
- pediculus humanus capitis
- phthirus pubis
2
Q
pediculus humanus humanus
A
- body louse
- ) usually found on areas of body other than head and neck
- ) attaches nits to clothing and undergarments
3
Q
pediculus humanus capitis
A
- head louse
- ) usually found on head and neck
- ) can be located in other hairy parts of the body
- ) egg of head louse (called a “nit”) is cemented to hair
4
Q
phthirus pubis
A
- crabs louse
- ) usually found on hairs in the pubic, anal regions, eyebrows
- ) can be located in other hairy parts of body
- ) cement nits to hair
5
Q
control methods treatment
A
- isecticidal ointment/shampoos such as elimite (permethrin)
- ) family members should be treated simultaneously
- wash all clothing, linens at 37.8C (100F) or higher
- ) this greatly reduces eggs from hatching
- wash all brushes/combs w/t hot water, soap
- avoid use of common articles of personal hygiene, grooming
6
Q
distinguishing characteristics of cockroaches
A
- german
- brown-banded cockroach
- american cockroach
7
Q
germen cockroach characteristics
A
- appearance of adults
- ) tan/straw colored
- ) 15mm in size
- ) has two longitudinal dark stripes near the head
- ) female produces an average of 6 egg capsules in a lifetime
8
Q
germen cockroach egg capsules
A
- contains up to 50 eggs
9
Q
germen cockroach habits
A
- most common indoor species, especially in, around food services spaces, facilities
- need food, water, harborage, warmth for growth, survival
10
Q
brown-banded cockroach characteristics
A
- appearance of adults
- ) lighter in color than germen cockroach
- ) less than 15mm long
- ) two yellow cross bands near the base of the adult wings, two transverse light bands on the dorsal surface of nymphs
- ) female produces an average of 10 eggs capsules in her lifetime
11
Q
brown-banded cockroach egg capsules
A
- contains an average of 15 eggs
12
Q
brown-banded cockroach habits
A
- prefers living rooms, dining rooms, bedrooms, closets of dwellings
- it is common pest in hotels, motels, often found in hospital wards
- it is not considered a food service area species
13
Q
American cockroach characteristics
A
- appearance of adult
- ) dark reddish-brown
- ) 35mm long
- ) anterior dorsal plate behind the head has conspicuous yellow posterior board strip
- ) an average of 34 capsules are produced by each female
14
Q
american cockroach egg capsules
A
- an average of 15 eggs
15
Q
american cockroach habits
A
- filthy habits, moving from shelter/breading area to food sources
- potential dangerous disease vector
16
Q
control methods for all cockroaches
A
- sanitation- must important non-chemical measure
- eliminate harborages
- surveillance and chemical control
17
Q
sanitation- must important non-chem measure
A
- store food properly
- garbage, other refuse should be in containers w/t tight-fitting lids, cleaned daily
- good restricted from berthing
- reduction of food sources and general cleanliness
18
Q
eliminate harborages
A
- typical harborages include the following
- ) old and torn insulation
- ) areas between walls
- ) areas behind drawers, oven hoods, under counters, serving lines
- ) hollow legs
- ) holes for plumbing, electrical lines
19
Q
surveillance and chem control
A
- visual inspection for cockroach harborages
- ) flush agents are useful in locating cockroach harborage
- survey every 2 weeks in food services areas
- ) use cockroach sticky traps to survey for cockroach
- apply pesticide as a supplement for sanitary control measures
- ) place to be treated must be properly prepared to prevent accidental exposure of food, food prep surface
- ) prohibit entry of personnel into treated spaces for at least one-half hr after treatment
- ) remove all dead cockroach, eggs promptly
- ) wash all food contact surfaces thoroughly
- ) refrain from complete field day on treated spaces for 24hrs to prevent insecticides from being washed out
