Plant Health & Pest Prevention Services Pest Detection/Emergency Projects
DETECTION ADVISORY

October 19, 1998

PD74-98

Mexican Fruit Fly (MxFF)

San Diego County

San Diego

Nine Mexican fruit flies were trapped from October 16 to 18, 1998. All of the finds were at or near sites that MxFF have previously been trapped (PD72-98). All of the finds are within the the San Diego Mexican fruit fly eradication zone.

New Trap Location

35th Street - October 18 - 1 mated female found in a McPhail trap placed in sapote.

Webster Avenue - October 18 - 1 male found in a McPhail trap placed in a sapote

Island Avenue - October 18 - 2 males and 3 unmated females found in a McPhail trap placed in sapote.

Previous Trap Location

J Street - October 16 - 1 male found in a McPhail trap placed in a sapote.

J Street - October 17 - 1 mated female found in a McPhail trap placed in a sapote.

Thirty-nine MxFF have been trapped in the amended San Diego Mexican Fruit Fly Eradication area. CDFA has been ground treating with malathion bait spray all hosts within 200 meters of the finds. In addition the sterile MxFF release program for San Diego has been expanded to cover a 1.5 mile radius around the new finds. Releases are scheduled to begin in this area on October 23. Fruit cutting for MxFF larvae is continuing near all finds.

The McPhail trap density in the area was 160 traps per square mile and will be increased as needed to protocol levels.

CDFA Insect Biosystematist Kevin Hoffman made the determinations.

San Diego County Department of Agriculture, CDFA, and USDA trappers Victor Armendariz, Connie Chavez, Kahsai Ghebretusen, Jorge Olivares, Carolina Rodriguez and Alan Sharon are credited with finding the Mexican fruit flies.

SUMMARY - 1998 MEXICAN FRUIT FLY FINDS
County	Adults Trapped	Date Last Adult Trapped	Larval Properties
Orange	1	07/09/1998	0
San Diego	74	10/18/1998	2
Ventura	1	04/21/1998	0
Totals	76		2

Prepared by: John Pozzi