Other Biting Flies Horse-flies, Tsetse-flies, House-flies and Stable-flies.
Household Flies: Biology, Behavior, and Control Dr. Richard M. Houseman Department of Entomology...
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Transcript of Household Flies: Biology, Behavior, and Control Dr. Richard M. Houseman Department of Entomology...
![Page 1: Household Flies: Biology, Behavior, and Control Dr. Richard M. Houseman Department of Entomology University of Missouri.](https://reader036.fdocuments.in/reader036/viewer/2022062511/5516d54955034698338b46db/html5/thumbnails/1.jpg)
Household Flies: Household Flies: Biology, Behavior, Biology, Behavior,
and Controland Control
Dr. Richard M. HousemanDepartment of Entomology
University of Missouri
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Flies
• Order Diptera– Have two wings– 110,000 species
worldwide– Aquatic and terrestrial– Medically important
• Complete Metamorphosis– Egg, maggot, pupa, adult
• Motivation– Food, light, sex,
temperature
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Fly Development
• Life Cycle
Egg Larva Pupa Adult-Feeding-Growing
-Feeding?-Mating
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Fly IPM
• Inspection• Identification• Mechanical (exclusion, traps)• Cultural (sanitation)• Chemical (baits, aerosols)
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Fly Identification
• Three groups– Small flies
•Less than ¼” in length•Various breeding sites
– Filth flies• Infest indoors
– Nuisance flies• Invade from outdoors
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Small Flies
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Fruit Fly
• Drosophila spp.• Several species• 1/8 inch long• Tan in color• Red eyes
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Fruit flyDrosophila sp.
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Fruit Fly
•Life Cycle•7-10 days•Eggs laid on fruit
– About 500 eggs per female– Hatch after 24-30 hrs
•Larvae feed on fermenting sugars– 5-6 days
•Pupate in drier areas near food
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Fruit Fly
• Breeding sites•Ripened fruits and vegetables•Moist organic matter in cracks,
crevices•Mops, Drains•Garbage
• Inspection•Often multiple breeding sites•Adults not always near breeding sites
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Phorid Fly
• Megacelia scalaris– 1/10 inch long– Arched thorax– Dark brown– No red eyes
Humpbacked flyPhoridae
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Humpbacked flyPhoridae
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Phorid Fly
•Life Cycle•14-37 days•Eggs laid on surface of DOM
– 40 eggs over 12 hr period– Hatch after 24 hrs
•Larvae feed on moist DOM– 9-16 days
•Pupate in dry areas close to food
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Phorid Flies
• Various Breeding Sites•Decomposing plants or animals•Organically enriched soil under slab•Dirty floor drains, disposals, drip pans•Trash containers•Crevices at base of kitchen equipment•Potted plants, terrariums•Feces•Cadavers
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Phorid Flies
• Inspections•Need to be very thorough•Often multiple breeding sites•Masking tape method for drains and
slabs
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Moth Fly
• Psychoda alternata– 1/8 inch long– Pointed, hairy wings– Long, drooping antennae
Moth flyPsychoda sp.
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Moth Fly
•Life Cycle•8-24 days•Eggs laid on gelatinous lining or moist
DOM– 30-100 eggs per female– Hatch after 48 hrs
•Larvae feed on algae, bacteria, sludge in gelatinous film
– Utilize breathing tube– 10-15 days
•Pupate for short period
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Moth flyPsychoda sp.
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Moth Fly
• Breeding sites•Gelatinous organic matter•Sink/sewer drains, sump pumps•Shower pans•Porta potties•Mops, brooms•Crawlspaces•Sewers/sewage treatment nearby
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Moth Fly
• Inspections•Strongly attracted to light•Masking tape method for drains•Check spider webs in crawlspaces•Drill holes in wall behind shower pan
(light)
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Mosquito
• Culicidae– Thin bodies– Long mouthparts– Scales on wingveins
MosquitoCulex sp.
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Mosquito
• Life Cycle•Eggs laid singly or in rafts
– Hundreds of eggs per female– Female generally needs blood to make
eggs
•Larvae live suspended from water surface
– Breathe through air tube on rear end– Move about by wiggling– Feed on algae, bacteria, organic debris
•Pupae breathe through horns on head
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Mosquito larvaeCulicidae
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Mosquito larvaeCulicidae
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Mosquito
• Breeding Sites• Ponds, lakes, ditches• Culverts, manholes• Bird baths, gutters• Pots, cans, buckets, other containers• Old tires
• Inspections• Breeding sites for larvae• Vegetation around structure for
adults
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Filth Flies
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House fly
• Musca domestica– ¼ inch long– Dull gray– 4 dark stripes on
thorax– Sponging mouthparts
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House flyMusca domestica
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House Fly
•Life Cycle•6-10 days•Eggs laid on fresh feces or garbage
– 750-900 eggs per female
•Larvae burrow into food material to feed
– 6-8 days– May migrate several hundred feet from
feeding site
•Pupate for short period
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House flyMusca domestica
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House fly
• Breeding sites•Wet garbage•Manure •Rotting grains
• Inspections•Focus outdoors primarily•Pet manure areas•Trash bins, decaying
fruits/vegetables
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Blow Fly
• Calliphora• Phormia
– ¼ inch long– Metallic colors
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Green bottle flyCalliphora erythrocephala
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Blow Fly
•Life Cycle•4-12 days•Eggs laid on carcasses, feces, garbage
– 180 eggs per time (2400 total)– Hatch after 8 hrs
•Larvae burrow into food material– Feed for 2-7 days– Crawl short distance from food– Burrow into soil to pupate
•Pupate for 2-5 days
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Green bottle flyCalliphora erythrocephala
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Green bottle flyCalliphora erythrocephala
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Blow Fly
• Breeding Sites•Dead animals•Feces•Garbage
• Inspections•Focus outdoors primarily•Dead animals, trash, feces• Indoors usually result of dead rodent
– 180+ flies from a single dead mouse
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Nuisance Flies
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Cluster Fly
• Pollenia rudis– 3/8 inch long– Golden/yellow
hairs on the top of the thorax
– Buckwheat honey odor
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Cluster flyPollenia rudis
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Cluster Fly
•Life Cycle•25-36 days (Four generations)•Eggs laid in cracks in soil surface
– One egg at a time
•Larvae locate earthworm– Burrow into worm– Feed for 14-22 days– Exit earthworm to pupate
•Pupate for 11-14 days
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Cluster Fly
• Breeding Sites•Lawns and pastures
• Inspections•Locate exterior cracks/crevices•South/west surfaces best• Inspect attics/wall voids
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Crane Fly
• Tipulidae– Large flies– Gangly looking– Very long legs– Mosquito-like
Crane flyTipulidae
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Crane Fly
• Breeding Sites•Damp habitats with abundant
vegetation
• Inspections•Usually considered occasional
invaders•Open doors/windows likely source•Pose no threat indoors•No treatment recommended
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Midge
• Chironomidae– 1/4 inch– Mosquitoe-like– No long mouthparts
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Midge
• Life Cycle•Larvae live in bottom of still water
• Breeding sites•Pools, puddles, ponds
• Inspections•Strongly attracted to lights•Look inside light fixtures,
windowsills
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Fly Control
• Sanitation– Breeding site elimination
• Exclusion– Reduce ability to gain entry
• Baits– Food-based – Sex-based
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Flies
• Feeding– Food is the MOST important
motivation•Odors very attractive•Detect over large distances•Locate mates at feeding sites•FEEDING and BREEDING sites
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Flies
• Sanitation critical•Regularly empty/wash trash cans•Use tightly sealed trash cans•Regularly clean drains•Regular rotation of fresh
fruits/veggies
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Flies
• Temperature– Important attractant at short
distances– Prefer low 80’s
•Enter from outside during hot days•Attracted to warm walls when cold
comes
– Exclusion critical
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Flies
• Light– Many flies are diurnal– UV Usually used to lure into a trap – Not all species attracted equally to UV
light• Invaders very attracted• Infesters not attracted as much
– Placement is critical
• Sex– Males to female pheromones– Used to lure into traps
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Contact Info:
Dr. Richard M. HousemanDepartment of Entomology1-87 Agriculture BldgUniversity of MissouriColumbia, MO 65211