Spray Alerts

Current Spraying Operations: Adult mosquito control will resume in 2025 when our laboratory surveillance warrants the need. On going mosquito control efforts to control aquatic mosquito larvae and pupae continue throughout the cooler months. 

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):

Past Completed Spray Operations:

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Wednesday, October 23, 2024, between 6:30 p.m. and 8:30 p.m. 
  • West Ripon & Rural South County including SJ River Club:  See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, October 24, 2024 between 3:30 a.m. and 5:30 a.m.
  • Portion of East Manteca: >North to E. Louise Ave. and Hwy 99, >South to E. North St., >East to Cottage Ave. and Hwy 99, >West to Powers Ave. and Placer Ave. See Map COMPLETE
  • Portion of South Manteca: >North to E. Woodward Ave., >South to Tannehill Dr., >East to Pillsbury Rd., >West to S. Main St. See Map COMPLETE
  • Portion of West Manteca: >North to Louise Ave., >South to W. Alameda St., >East to N. Main St., >West to N. Union Rd. See Map COMPLETE
  • Portion of North Ripon: >North to E. River Rd. and SSJ Canal, >South to E. Milgeo Ave., >East to S. Murphy Rd., >West Fulton Ave. See Map COMPLETE
  • Portion of Rural South County: See Map COMPLETE

• Ground spraying for larval mosquito control using Altosid Liquid larvacide, is scheduled for the morning of Thursday, October 24, 2024, between 3:30 a.m. and 5:30 a.m.
  • Portion of West Manteca: >North to Louise Ave., >South to the southern part of Manteca Golf Course., >East Foxfire Dr. and Union Rd.,  >West  to N. Airport Way. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Thursday, October 10, 2024, between 6:45 p.m. and 9:00 p.m. 
  • Brack-Canal Ranch-Terminous: Portions of Brack Tract, Canal Ranch, and Terminous Tract See Map COMPLETE
  • Rural South County: See Map COMPLETE
     
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, October 11, 2024 between 3:30 a.m. and 6:30 a.m. (Added- 10/10/24)
  • Portion of East Manteca: >North to Southland Rd., >South to E. Yosemite Ave., >East to S. Austin Rd., >West to Cottage Ave. and Hwy. 99  See Map COMPLETE
  • Portion of South Manteca: >North to Wawona St., >South to Hwy 120, >East to Union Rd. >West to Airport Way.  See Map COMPLETE
  • South of Linden- Peters Area: >North to Milton Rd., >South to Dietrich Rd., >East to S. Hewitt Rd., >West to Dietrich Rd. See Map COMPLETE
  • Portion of South Stockton: >North to E. Munford Ave. & Catamaran Wy., >South to Industrial Dr. and Bayliner Dr.,  >East to Hwy 99, West to Pock Ln. & Lanyard 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 Rural Northeast Escalon: >North to Dodds Rd., >South to Lone Tree Rd., >East to Cometa Rd. & Victory Ave., >West to Steinegul Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Wednesday, October 9, 2024, between 6:45 p.m. and 9:00 p.m. 
  • North Delta: Empire Tract and surrounding areas 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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