--> It has been widely announced that last year (2014) was one of the hottest in history. In Australia, this follows in the wake of 2013, which was considered the hottest year ever recorded by the country.
The normal shape of pest inhabitance in the southern city of Sydney follows
a typically seasonal pattern: in the summer, all the things people
hate--mosquitoes, spiders etc –are blown south and reproduce for a short time
before freezing to death in the colder winter months. Essentially, providing a restart
to the pest populations of the city.
However, due to the unusually warm years, not enough of these bugs are
disappearing. This means an increasingly
annoying—and from a public health standpoint—worrying number of aedes aegypti (also known as the yellow
fever mosquito) and aedes vigilax (also
known as the saltmarsh mosquito) establishing
populations in the city of Sydney…and not buzzing off in the winter.
Public health workers fear that the increase in mosquitoes might herald a
soon to be increase in disease. While yellow fever is not found in Australia,
it is still not a good idea to have a large population of ready and potential
reservoirs for the virus. Of concern however is the possibility of A. aegypti transmitting one of the
equally deadly diseases that do occur in Australia: dengue fever, ross river
fever or Murray valley encephalitis. A. vigilax is known to be responsible for a large number
of Ross River fever cases.
If the warm weather keeps up, Sydney may need to take some action into its
own hands to stamp out this dangerous vector. Time to get the buzz kill.