- Ada, Oklahoma  Local News  August 25, 2013  Mosquito control
in Pontotoc County concerns residents  Ada — Pontotoc County has
experienced much needed rain the last few weeks, along with the
moisture, calls concerning mosquitoes and their control have
increased.  More than 60 mosquito species occur seasonally in
Oklahoma - from March through first frost in November. A few
early species prefer cool weather, but the majority of adult
mosquitoes are pests during April, May, and June, especially
following spring rains. Culiseta mosquitoes first become active
in Oklahoma in March with subsequent summer species usually
appearing in April and May. Mosquitoes may be present even after
the first frost because emerging larval and pupal populations
may not be affected by a light freeze. Mosquito populations in
Oklahoma are greatly influenced by the weather. Scattered rains
may lead to higher populations of mosquitoes in certain areas
and not in others. During hot, dry summers there normally are
not enough mosquitoes pr