lesson 12 Flashcards
Which pest poses the gravest risk of food safety?
-house fly aka filth fly
How do house flies pick up filth?
- sticks to hair on their bodies
- eat waste matter w/microorganisms
estimated number of bacteria on house fly
28 million
estimated number of bacteria inside house fly
5 million
4 stages in life of house fly
- egg
- larva
- pupa
- adult
How many eggs can a female house fly lay in her lifetime?
-up to 900
how long does it take for white pupa to emerge from their eggs
-8-20 hrs
How long does the total development of the larva last in…
1) warm weather
2) cold weather
1) 1 week or less
2) up to 8 wks
Range of time for pupa to transform into adult
3 days - 5 weeks
Where do house flies prefer to lay eggs?
decaying organic materials
two kinds of electric fly trappers and which one is prohibited
- fly zapper (electrocutes fly) - prohibited
- fly catcher (glue trap)
Briefly describe appearance of fruit fly
- 1/8 inch
- red eyes
- tan thorax/head
Effects of consumption of fruit fly larvae
- intestinal pain
- diarrhea
Name the 2 diff types of roaches in NYC
- German Roach
- American Roach
Why are roaches so dangerous?
- can trigger allergic reaction (asthma)
- carry disease causing bacteria
Describe the appearance of an adult German Roach
- light
- 2 dark stripes on head
- 5/8 inches
Describe the appearance of a young German Roach
- wingless
- black
- single white stripe down middle