Feed on animal and human wastes carry pathogens on

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Feed on animal and human wastes Carry pathogens on feet, mouth, wings and gut Regurgitate enzymes to liquefy food and defecate Temperature range 6° - 40°C Insects: Flies Disease Vectors Life Cycle – Complete metamorphosis – 8 to 10 days – Adult life span: 1 month – Control measures directed to egg, larval and pupal stages Egg Larva Pupa Adult Insects: Flies Brucella Campylobacter E. coli Klebsiella Salmonella Streptococcus Staphylococcus Vibrio cholera • Viruses Insects: Other Wide variety Grain beetles • Mealworms Flour beetles • Weevils Insects: Control 1) Insecticides – Residual Effective during an extended period Treatment of cracks and crevices • Baits – Non-residual Effective only during treatment Contact treatment: liquid spray Space treatment: foggers, vapors, aerosols Fumigants in stored products Insects: Control 1) Insecticides – Non-residual fumigants • Phosphine Methyl bromide (widely used, but soon to be banned) Ethylene oxide (also used to kill bacteria) Carbon sulfide
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Insects: Control 2) Insect light traps Very effective Flying insects • Placing: – Interior perimeter – Interior – Exterior perimeter Insects: Control 3) Sticky traps Sticky flypaper Slow drying adhesive Covered with pheromones Insects: Control 4) Biological control Pest parasites Growth regulators Pest predators Sterile varieties Milled diatomaceous earth Pheromone traps Birds: Diseases • Pseudotuberculosis • Toxoplasmosis • Salmonellosis • Encephalitis E. coli O157:H7 Birds: Control • Sanitation Building design • Trapping Electrical wires • Poisoning – Strychnine – 4-aminopyridine – Azacosterol (sterilant for pigeons)
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  • Spring '09
  • Prof.HamiAlpas
  • flying insects, Rodents

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