Mediterranean Fruit Fly (Medfly) Riverside County Lake Elsinore An unmated female Medfly was trapped on November 16, 1998. The fly was found in a Integrated Pest Management Trap (IPMT) that was set along Ainsworth Place in an orange tree. Medflies have been previously trapped at this location. CDFA trapper Laurie Whitcomb and USDA sorter Dorinda Singer are credited with finding the Medfly. CDFA Insect Biosystematist Kevin Hoffman made the determination. Since October 22, 1998, seventy-five (75) Medflies have been
trapped at 32 separate sites in the Lake Elsinore area. Larvae
have been found on five properties. CDFA initiated ground treatment
with malathion bait to all properties within 200 meters of the
finds and the second application is in progress. The second soil
drench treatment with diazinon to larval properties and adjacents
is continuing. Sterile Medfly releases (SIT) began on The CHAMP/yellow panel, Jackson, and McPhail traps are being removed from the SIT release area and are being replaced with Integrated Pheromone McPhail Traps (IPMT). They are being deployed at five traps per square. A quarantine area of 180 square miles has been established.
Prepared by: John Pozzi |
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