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REGIONAL PEST REPORT

Winter season

Pest threat

Fleas (Order Siphonaptera)

Fleas

Identification

  • Are ectoparasites known to transmit disease (e.g. plague, murine typhus)
  • Include several pest species, namely cat, dog, human, rat, and squirrel fleas
  • Measure about 1.5 mm in length, depending on species
  • Are laterally flattened (i.e. flat at the sides)
  • Are wingless; cannot fly
  • Normally are brownish-black in colour; however, after feeding they will take on a reddish hue
  • Have long and powerful hind legs that are adapted for jumping; can jump up to 20 cm vertically and about 40 cm horizontally
  • Have short, 3-segmented antennae
  • Mouthparts adapted for piercing and sucking

Habitat and Behaviour

  • Can exist in a structure without the presence of their primary host (usually pets)
  • Are protected in their pupal stage and can remain so for several months until temperature increases and vibrations are detected
  • Adults can live several months without food (blood)
  • Prefer high moisture environments, whether indoors or outdoors
  • Will readily bite humans

Lifecycle

  • Undergo complete metamorphosis (egg, larva, pupa, adult)
  • Females require a blood meal prior to laying eggs which are deposited on the host animal and/or the host’s resting area
  • Females are capable of producing upwards of 500 eggs over a lifetime
  • Larvae require a blood meal to ensure development