Olive Fruit Fly (OLFF) Los Angeles County West Los Angeles On February 16, 1999, CDFA trapper Juan Moreno found one male OLFF in a CHAMP trap placed along Thayer Avenue. The trap was set in an olive tree. OLFF have previously been trapped at this location and it is within the OLFF treatment area. CDFA Insect Biosystematist Ray Gill made the determination. Olive fruit fly does not respond to cuelure or methyl eugenol. CDFA has increased the McPhail trap density, as needed, to 80 traps per square mile in the core square mile and 40 McPhail traps per square mile in the eight adjacent square miles. In addition, AM panel/CHAMP traps have been deployed at the same density as the McPhail traps within the delimitation trapping area. CDFA is continuing a larval survey. Since October 19, 1998, a total of 297 olive fruit flies have
been trapped in California. Two hundred and eighty-three (283)
OLFF have been trapped in the Westwood area of Los Angeles and
larvae have been found on 11 properties. In response, CDFA
has initiated ground malathion bait to all olive trees within
200 meters of these finds. Also, 12 OLFF have been trapped at
separate sites in Alta Dena, Bel Air Estates, Crenshaw (3), Hawthorne,
Inglewood, Los Angeles(2), Manhattan Beach, Redondo Beach and
West Hollywood areas. CDFA has increased trapping according
to protocol around these finds.
Prepared by: John Pozzi |
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