View Single Post
  #5   Report Post  
Old 24-07-2003, 10:02 PM
Hope Munro Smith
 
Posts: n/a
Default Mosquito Spraying

"Texensis" wrote in news:S0RTa.69542
:


"Rusty Mase" wrote in message
...
| The TV news mentioned those pesky mosquitos are now being sprayed
| after a person in Austin came down with West Nile Virus. Does
anyone
| know what they are spraying and where?
|
| Rusty Mase
|

Below is info learned the last time around. If a message is left
requesting it, a call will be returned. It's the combined
Austin-Travis County Health Dep't people (rodent/pest vector
control???). Last time, it was said that spraying would be done mostly
between 3 am and sunrise, and mostly outside the city limits, and not
within 200 feet of properties on a no-spray list.

............................
What chemicals are used in spraying operations?

Biomist (permethrin) is manufactured by Clarke Mosquito Control
Products of
Roselle, Illinois.
Scourge (resmerthrin) is manufactured by Aventis Environmental Science
USA
of Montvale, New Jersey.
Both are of the chemical family of synergized synthetic pyrethroids.
These chemicals can only be applied by appropriately certified
technicians,
and the environmental conditions under which they may be used is
tightly
defined.

Permethrin effects on aquatic organisms: Aquatic ecosystems are
particularly
vulnerable to the impact of permethrin. A fragile balance exists
between the
quality and quantity of insects and other invertebrates that serve as
fish
food.

Effects on other organisms: Permethrin is extremely toxic to bees.
Severe
losses may be expected if bees are present at treatment time, or
within a
day thereafter. Permethrin is also toxic to wildlife. It should not be
applied, or allowed to drift, to crops or weeds in which active
foraging
takes place.

Resmethrin Effects on aquatic organisms: Resmethrin is very highly
toxic to
fish.

What is the "No Spray" list?

This is a list of residents who do not want mosquito spraying
operations
near their homes. No spraying will be done within 200 feet of the
property
of anyone on the "No Spray" list. To have your name included on the
list,
call 972-5600.




Don't they spray after dark, when bees would be in their hives and most
people in their houses I think...