-- In dining facilities, application at the rate of 7 seconds per 1,000
cubic feet should be made from one-half to 1 hour before serving meals.
Approved residual insecticides may be used for control of adult flies.
-- Residual sprays are effective for long periods of time.
-- Usually, from one-half to 4 hours exposure to spray residue is
required to kill a filth fly.
-- The spray should be applied to areas where flies usually rest,
such as ceilings, corners, table legs, windows, and other lighted areas.
-- These areas can be easily recognized by the presence of
flyspecks.
Swatting is an excellent way to kill flies that have entered a screened
enclosure.
-- Dining and kitchen facilities should have several swatters
conveniently placed.
-- Since flies seek lighted areas, the shades of most windows
should be drawn.
-- The flies will then congregate near the light of the unshaded
windows, where they can be easily swatted.
5-29. SANDFLIES
Sandflies are small, bloodsucking, hairy gnats which, to the casual
onlooker, might look like small mosquitoes.
Ordinary window screening that bars mosquitoes is ineffective against
sandflies.
These flies are annoying pests which inflict painful, irritating bites and are
vectors for several communicable diseases.
The sandflies make up a group of flies known as phlebotomine flies.
Of particular military importance is Phlebotomus papatasii. the principal vector
for sandfly fever.
a. Sandfly Activity. Sandflies are active at night, in the evening and at dawn;
they usually avoid wind, sun, and full daylight, but they are attracted to artificial light.
MD0152
5-31