Module 5 Cockroaches Flashcards Preview

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Flashcards in Module 5 Cockroaches Deck (15):
1

Cockroach morphology

-leather wing
-chewing mouthparts
-large pronotum
-prominent cerci
-dorso-ventrally flattened

2

development

-hemimetabolous (nymphs and adults in same habitat)
-oviparous: lays ootheca

3

feral

independent of humans
95% of all species
no medical importance

4

peridomestic

survive in and around humans
e.g. American and Oriental

5

domestic

live mostly indoors, completely dependent of humans
most important medically
e.g. Brownbanded and German

6

oriental cockroach characteristics

black, medium sized
ootheca with 16 eggs
peridomestic
"water bug" - associated with damp environments
restricted mobility

7

oriental cockroach sexual dimorphism

males - winged but don't fly
females - brachypterous (short winged)

8

oriental cockroach taxonomy

Blatta orientalis

9

american cockroach taxonomy

Periplanta americana

10

american cockroach characteristics

large, red/brown
long wings and capable of flight
ootheca with 12 eggs
most found peridomestic species
can move thru sewer system

11

german cockroach taxonomy

Blattella germanica

12

german cockroach characteristics

most important domestic pest
found in unclean areas
small, brownish with 2 black lines on pronotum
major nuisance and implications for health
ootheca with 30 eggs
don't fly, only glide
found mainly in kitchens and pantries

13

high populations can affect human health:

1. contamination of food
2. spread of pathogens thru mechanical transmission
3. allergies

14

prevention to minimize entry into buildings

1. can enter thru infested containers
2. deny enter and shelter (i.e. fix holes)
3. basic sanitation

15

Integrated Pest Management (IPM) strategies

1. insecticides (multiple sprayings)
2. boric acid powder (poison is ingested by cockroach killing it, then is fed on by others killing them too)
3. roach baits (visit then go back home to die)
4. diatomaceous earth (scratches cuticle then insect dries out) (non-toxic to humans)
5. sticky traps