Mediterranean Fruit Fly (Medfly) Orange County Mission Viejo An unmated female Medfly was found in a McPhail trap on September 2, 1998, by CDFA trapper Ken Thomas. The trap had been placed in a fig tree along Almaden and is approximately 1.5 miles outside the Lake Forest Medfly SIT zone. The McPhail trap density in the area of the find was five traps per square mile. CDFA will increase, as necessary, the trap density to protocol levels for new Medfly finds. The trap densities in the core square mile will be 100 CHAMP/yellow panel traps and 25 McPhail traps per square mile. The trap density in the first buffer of eight square miles is 50 CHAMP/yellow panel traps per square mile, with a 25-20-10 array of CHAMP/yellow panel traps outside the first buffer. In addition to increased trapping, CDFA will ground treat the find property and adjacent properties with malathion bait. The Lake Forest Sterile Medfly release area will be expanded from 22 square miles to 33 square miles to include the new Mission Viejo find. CDFA Insect Biosystematist Kevin Hoffman determined that the female Medfly was unmated and sexually immature.
Prepared by: John Pozzi |
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