THe 1974 LOSQUTTO CONTROL SEASON

This season, 12,285 gallons of chemical solution were
used in aerial control efforts. This was broken dowm into
6,885 gallons of Abate for iarvaciding (56.1% of total

allonage) and 5,400 gallons of Malathion for adulticiding
(43.94 of total gallonage). In addition to these controls,
the Mosquito Control Officers treated approximately 1800
acres of mosquito breeding grounds with Abate in their
larvaciding program, while utilizing approximately 350
galions of Malathion in their ground adulticiding program.
Thus, for the overall control effort (both aerial and ground),
8,685 Gallons of Abate (60.2%) and 5,750 Gallons of
Malathion (39.8%) were used. This, as you can note from
previous years, shows a considerable increase in the Abate/
Malathion ratio,

Although the Fraser River was expected in flood extensively:
due to an extremely heavy snow pack, we were saved somewhat ;
by a series of alternatively hot and cool periods during

the month of June. As a result, the Fraser River peaked

at 22.38 feet (Mission guage) on June 21st, 1974. Although
considerable flooding resulted in the Fraser Valley, it

was not nearly as extensive as had been predicted,

It is the ain of every mosquito control program to
achieve at least a 50-50 ratio of Abate-Malathion sprayings.
This can and should be attained with a proper ground control
Program. This past season has been the second in a row in
which this desired ratio of larvaciding to adulticiding has
been attained, and it is due in part to the continual and
and constant training of our mosquito control officers
prior to the mosquito control season. However, this past
season has brought to light the fact that the chemicals which
we are currently using are losing their effectiveness
for mosquito control,

Therefore, in order to maintain our control progran
at its currently successful level, I put forward the
following recommendation. for your immediate consideration.