Olive Fruit Fly (OLFF) Eight olive fruit flies were trapped on January 4 and 5, 1999, in Los Angeles County. Three OLFF were trapped outside the Westwood/ West Los Angeles treatment zone; one unmated female in Alta Dena, one mated female OLFF in Redondo Beach and one male OLFF in West Hollywood. Five OLFF were trapped within the treatment area. Los Angeles County Alta Dena On January 4, 1999, one unmated female OLFF was found in a McPhail trap placed along Camp Huntington Rd. The find is about 20 miles from the Westwood OLFF. Redondo Beach A mated female OLFF was detected in a McPhail trap on January 5th at a site along Spreckels Lane. The find is approximately 11 miles from the Westwood OLFF. West Hollywood One male OLFF was caught on January 5th in a CHAMP trap placed along San Vicente Boulevard and is approximately two miles outside the Westwood OLFF treatment area. West Los Angeles / Westwood
CDFA trappers Fernando Barrera, Luis Cordova, Daniel Montoya, Ernesto Ronquillo, and Jim See are credited with finding the OLFF. CDFA Insect Biosystematist Kevin Hoffman made the determinations. Olive fruit fly does not respond to cuelure or methyl eugenol. CDFA has increase 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 in the area of recent finds. Since October 19, 1998, a total of 174 olive fruit flies have been trapped in California. One hundred and sixty-seven (167) OLFF have been trapped in the Westwood area of Los Angeles and larvae have been found on nine properties. In response, CDFA has initiated ground malathion bait to all olive trees within 200 meters of these finds. Also, five OLFF have been trapped at separate sites in Alta Dena, Inglewood, Manhattan Beach, Redondo Beach and West Hollywood areas of Los Angeles. CDFA has increased trapping according to protocol around these finds. In addition to Los Angeles County, two OLFF has been trapped in Garden Grove and Rossmoor, Orange County and CDFA has increased trapping according to protocol around these finds.
Prepared by: John Pozzi |
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