Flies and Rats: A Field Guide to Disgusting Pests Great and Small.
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Transcript of Flies and Rats: A Field Guide to Disgusting Pests Great and Small.
![Page 1: Flies and Rats: A Field Guide to Disgusting Pests Great and Small.](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649ea15503460f94ba449a/html5/thumbnails/1.jpg)
Flies and Rats:
A Field Guide to Disgusting Pests Great and Small
![Page 2: Flies and Rats: A Field Guide to Disgusting Pests Great and Small.](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649ea15503460f94ba449a/html5/thumbnails/2.jpg)
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The House Fly
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House Fly Pearls Adults are about ¼ inches in length and
have narrowly spaced red-brown eyes. Females are larger, 1/2 -3/4 inches and
have widely spaced red-brown eyes. Spongy—non-biting—mouthparts Dull gray body with four stripes on
length of thorax
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More Pearls Females live 3-4 weeks Each female can lay 5-6 broods of 75-
100 whitish, oval eggs, usually in a nutrient-rich environment such as garbage.
Larval stage (i.e., maggot) occurs within 12-24 hours
Pupal stage may take another week
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The Happy Couple Assume a mean temperature of 65o (F)
Assume two blissfully happy house flies. Assume a very Un-Darwinian world in
which the contented couple copulates copiously without the usual worry of predators who’ll spoil their fiesta de amor .
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Be “fruitfly” and Multiply
If all the offspring survive, then our initial happy couple with the prodigious procreative predilection of their progeny, could produce theoretically a lineage of 191,010,000,000,000,000,000 (191 quintillion, 10 quadrillion) strong.
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Tread Lightly If one assumes that an average house
fly occupies 1/8 cubic inches, then our happy couple would:
Cover the entire planet and Cover it to a depth of about 47 feet
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Good and Bad News
Environmental factors tend to limit fly populations. Bury the dead, dispose of garbage, keep the privy door shut, don’t live adjacent to a farm, etc.
They regurgitate into the food they eat
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Blow Flies
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Characteristics Larger than common house flies Often have metallic colors Adults make a loud, droning sound Attracted to garbage, flesh (dead and
dying), dog droppings, etc. Flight range is between 3 and 10 miles
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Flesh Fly
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Charcteristics Adults look like large house flies Notable Differences: 3 stripes on the
thorax and a checkerboard pattern on the abdomen
Females deposit live maggots (not eggs) on decaying flesh and excrement (especially dog stools)
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Rodentry 101
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The Skinny