Spray Alerts

Current Spraying Operations:

Ground & air spraying locations, dates, and times are listed below. Maps, if available, are also attached. In response to increased adult mosquito populations, or the detection of West Nile Virus, or the detection of invasive Aedes aegypti mosquitoes, the District is preparing to conduct adult and/or larval mosquito control operations in the following area(s):

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Thursday, July 25, 2024, between 8:30 p.m. and 10:30 p.m. 
  • Delta Islands West of Lodi: Portions of Brack Tract, Terminous Tract See Map COMPLETE
  • Delta Islands: Rural West Delta- Portions of Rindge Tract and King Island: See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, July 26, 2024, between 3:30 a.m. and 6:30 a.m.
  • Portion of North Ripon: >North to W. Santos Ave., >South to W. Milgeo Ave., >East to Ripon Rd. and John Roos Ave. >West to Fulton Ave. and Arc Way. See Map COMPLETE
  • North Stockton: >North to Hammer Ln., >South to W. Lincoln Rd., >East to Pershing Ave., >West to Alexandria Place  See Map COMPLETE
  • Stockton- Portion of Brookside: >North to Riverbrook Dr., >South to Brookview Dr. and Shadowbrook Dr., >East to Brookside Rd., >West to Riverbrook Dr. See MapCOMPLETE
  • Southeast Stockton: >North to Tecumseh Ln. and McCook Way, >South to Industrial Dr., >East to Hwy 99 Frontage Rd., >West to Pock Ln. See Map COMPLETE
  • South Ripon: >North to W. Main St., >South to Fourth St. >East to S. Stockton Ave., >West to S. Wilma Ave. See Map COMPLETE
  • Portion of Rural South County - Division Rd. Area: >North to Avenue D & Division Rd., >South to San Joaquin and Stanislaus Rivers, > East to Stanislaus River / Ave D, >West to Two Rivers Rd., Division Rd., and Airport Way See Map COMPLETE
• Ground spraying for wide area larval mosquito control using VectoBac WDG® is scheduled for the morning of Friday, July 26, 2024, between 3:30 a.m. and 6:30 a.m.
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd. See Map COMPLETE
     

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Past Completed Spray Operations:

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Monday, July 22, 2024, between 8:30 p.m. and 10:30 p.m. 
  • Delta Islands- Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island  See Map COMPLETE
  • Delta Islands- Portions of Brack Tract and Bouldin Island: See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Thursday, July 18, 2024, between 8:30 p.m. and 10:30 p.m. 
  • Delta Islands- Portions of Brack Tract See Map COMPLETE
  • Portion of South County: See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, July 19, 2024, between 3:30 a.m. and 6:00 a.m.
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd. See Map COMPLETE
  • North Escalon: >North to Mission St., >South to California St., >East to Justin Dr., >West to Sierra Dr. See Map COMPLETE 
  • Rural East Escalon: >North to OID Canal, >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map COMPLETE
  • Portion of Farmington Area: >North to Hwy 4, >South to one mile south of Hwy 4, >East to 1/2 mile east of Escalon-Bellota Rd., >West to 1/2 mile west of Escalon-Bellota Rd. See Map COMPLETE
  • Portion of South Stockton: >North to Dr. Martin Luther King Blvd., >South to E. 9th Street, >East to U.P. RR tracks, >West to S. El Dorado St.  See Map COMPLETE
  • Portion of Northwest Tracy: >North to I-205, >South to W. Lowell Ave., >East to W. Lowell Ave., > West to Foothill Vista Dr. & Joe Pombo Pkwy. See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, July 12, 2024, between 4:00 a.m. and 7:00 a.m.
  •  North Stockton- > North to Meadow Ave., > South to W. Lincoln Rd., > East to Pershing Ave., > West to Alexandria Place See Map COMPLETE
  • Delta Area- Wright and Elmwood Tract See Map COMPLETE
  • Rural North Escalon- >North1/2 mile north of Skiff Rd., >South to Dodds Rd., >East to Escalon Bellota Rd., >West to Temple Creek  See Map COMPLETE
  • Portion of Rural South County - Division Road Area- >North to Avenue D & Division Rd., >South to San Joaquin and Stanislaus Rivers, > East to Stanislaus River / Ave D, >West to Two Rivers Rd., Division Rd., and Airport Way See Map COMPLETE
  • Rural South County including San Joaquin River Club See Map COMPLETE
     

• Aerial spraying for adult mosquito control using Evergreen 5-25 Air, is scheduled for the evening of Wednesday, July 10, 2024, between 8:30 p.m. and 11:00 p.m. 
  • Delta Islands- Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island  See Map COMPLETE
  • Delta Islands- Portions of Brack Tract, Canal Ranch, and Terminous Tract See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Tuesday, July 9, 2024, between 5:00 a.m. and 7:00 a.m. (Added and then expanded due to service requests in this area) 7/8/24
  • Rural North Escalon: >North 1/2 mile north of Skiff Rd., >South to Dodds Rd., >East to Escalon Bellota Rd., >West to Temple Creek See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Monday, July 8, 2024, between 8:30 p.m. and 11:00 p.m. 
  • Delta Islands- Portions of Shima Tract, Rindge Tract, Wright Tract See Map COMPLETE
  • Delta Islands- South Staten Island and Portions of Brack Tract and Bouldin Island See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 525, is scheduled for the morning of Wednesday, July 3, 2024, between 4:30 a.m. and 6:30 a.m.
  • Delta Islands- West Roberts Island:  See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Thursday, June 27, 2024, between 8:30 p.m. and 10:30 p.m. Rescheduled for the evening of July 1, 2024, between 8:30 p.m. to 10:30 p.m.
  • Delta Islands- Portions of Shima Tract, Rindge Tract, Wright Tract See Map COMPLETE
  • Delta Islands- Portion of Brack Tract See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, June 28, 2024, between 4:00 a.m. and 5:00 a.m.
  • Portion of North Stockton:  > North to Meadow Ave., > South to W. Lincoln Rd., > East to Pershing Ave., > West to Alexandria Place See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Wednesday, June 26, 2024, between 5:00 a.m. and 7:00 a.m. or depending on the conditions, the morning of Thursday, June 27, 2024
  • Portion of Rural Northeast Escalon: >North to Lone Tree Rd., >South to 1/4 mile south of Dutra Ln., >East to Victory Rd., >West to Henry Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Sunday, June 23, 2024, between 8:30 p.m. and 10:30 p.m.
  • Wright-Shima-Rindge-Lower Roberts: Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island See Map COMPLETE
  • South Staten Island and Portions of Brack Tract and Bouldin Island: See Map COMPLETE

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West Nile Virus and
Dead Bird Hotline

(877) 968-BIRD (2473)

or online at westnile.ca.gov

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