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 mosquito control operations in the following area(s):

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Friday, September 22, 2023, between 7:00 p.m. and 9:00 p.m.
  • Portions of Brack Tract, Canal Ranch, and Terminous Tract: See Map
    
     

• Ground spraying for larval mosquito control using VectoBac WDG,  is scheduled for the morning of Thursday, September 21, 2023, between 3:30 a.m. and 5:00 a.m.
  • Portion of East Manteca: >North to Northgate Dr., >South to Joseph Dr., East to N. Main St., >West to Tidewater Park See Map COMPLETE
     
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, September 21, 2023, between 3:30 a.m. and 6:30 a.m
  • Portion of Thornton Area: >North to New Hope Rd., >South to Beaver Slough, >East to Mokelumne River and Klie Rd., >West to I-5 See Map COMPLETE
  • Portion of Rural West Lodi: Guard Rd. & White Slough area west of I-5 and south of Hwy 12 See Map COMPLETE
  • East Escalon: >North to Yosemite Ave., >South to Valdapena Wy, Thompson Way, Zinfandel Dr. and Daniels Ave., >East to McHenry Ave., >West to Brennan Rd.  See Map COMPLETE
  • 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
  • Portion of South Stockton: >North to E. Munford Ave., >South to Industrial Dr.,  >East to Hwy 99, West to Pock Ln.  See Map COMPLETE
  • Rural South County including San Joaquin River Club: See Map COMPLETE
  • Portion of Rural South County- Division Rd. Area:  >North to Division Rd., >South to San Joaquin and Stanislaus Rivers, >East to Stanislaus River, >West to Two Rivers Rd.  See Map COMPLETE
  • Rural East Escalon: >North to Dutra Ln., >South to Hwy 120, >East to Victory Ave., >West to Henry 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 Thursday, September 14, 2023, between 7:45 p.m. and 9:00 p.m.
  • 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 Friday, September 15, 2023, between 3:30 a.m. and 6:30 a.m
  • Farmingtom Area: See Map COMPLETE
  • Portion of Rural West Farmington: >North to Little Johns Creek, >South to Gawne Rd., >East to Mobley Rd., >West Stow Ave. See Map COMPLETE
  • Rural Northeast Escalon: >North to Grooms Rd. > South to OID Canal, >East to Victory Ave. > West to Rufus Ave. 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 Rural East Lodi: >North to Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd. See Map COMPLETE
  • Portion of Rural East Lodi: >North to Sargent Rd., >South to Harney Ln., >East to Atkins Rd., >West to Tully Rd. See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, September 14, 2023, between 3:30 a.m. and 6:30 a.m
  • Rural West Lodi: >North to Hwy 12, >South to Telephone Cut, >East to I-5, >West to three miles west of I-5 See Map COMPLETE
  • Portion of Thornton Area: >North to New Hope Rd., >South to Beaver Slough, >East to Mokelumne River and Klie Rd., >West to I-5 See Map COMPLETE
  • Portion of Rural North County: >North to Liberty rd., >South to Jahant Rd., >East to Dustin Rd., >West to Kennefick Rd. See Map COMPLETE
  • West Roberts Island:  See Map COMPLETE
  • Portion of South Stockton: >North to E Jefferson St., >South to E. 9th Street, >East to U.P. RR tracks, >West to S. El Dorado St.  See Map COMPLETE
  • Ripon Sewer: >North to Doak Rd., >South to Stanislaus County Line, >East to Stockton Ave., >West to Robert Ave. See Map COMPLETE
  • South Ripon Area: >North to W. Main St., >South to Doak Blvd., >East to S. Stockton Ave., >West to S. Jacktone Rd. See Map COMPLETE
  • Rural East Escalon: >North to Dutra Ln., >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map COMPLETE
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd. See Map COMPLETE
  • Rural Southeast Escalon: >North to Jones Rd., >South to Stanislaus River, >East to McHenry Ave., >West to Brennan Rd. See Map COMPLETE
  • Rural North Ripon: >North to Yosemite Ave., >South to Murphy Rd., >East to Murphy Rd., >West to 1/2 mile west of Murphy Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Monday, September 11, 2023, between 7:45 p.m. and 10:00 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 Tuesday, September 12, 2023, between 4:00 a.m. and 6:30 a.m
  • 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 Rural West Farmington: >North to Little Johns Creek, >South to Gawne Rd., >East to Mobley Rd., >West Stow Ave. See Map COMPLETE
  • Portion of Rural South Farmington: >North to Little John Creek, >South to 1/2 mile south of Skiff Rd., >East to Biederman Way, >West to Van Allen 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

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Monday, September 11, 2023, between 4:00 a.m. and 6:30 a.m
  • Portion of Rural North San Joaquin County: >North to Collier Rd., >South to E. Jahant Rd., >East to N. Watkinson Rd., >West to Elliot Rd. See Map COMPLETE
  • Portion of Clements Area: >North to Hwy 88, >South to E. Stampede Rd., >East to Clements Rd., >West to Atkins Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Thursday, September 7, 2023, between 8:00 p.m. and 10:00 p.m.
  • North Delta: Portions of Brack Tract, Canal Ranch, Staten Island, and Terminous Tract See Map COMPLETE
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the evening of Thursday, September 7, 2023, between 7:30 p.m. - 10:30 p.m. (Added 9/7/23)
  • Rural West Lodi: >North to Hwy 12, >South to Telephone Cut, >East to I-5, >West to three miles west of I-5 See Map COMPLETE
  • Portion of Rural South Manteca: >North to W. Ripon Rd., >South to Melton Rd., >East to Brown Rd., >West to S. Union Rd. See Map COMPLETE
  • Portion of Rural South County:  See Map COMPLETE
  • Ripon Sewer: >North to Doak Rd., >South to Stanislaus County Line, >East to Stockton Ave., >West to Robert Ave. See Map COMPLETE
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, September 8, 2023, between 3:30 a.m. and 6:30 a.m. (Added 9/7/23)
  • Portion of Rural East Lodi: >North to Sargent Rd., >South to Harney Ln., >East to Atkins Rd., >West to Tully Rd. See Map COMPLETE
  • Portion of Rural East Lodi: >North to Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd.  See Map COMPLETE
  • Portion of Thornton Area: >North to New Hope Rd., >South to Beaver Slough, >East to Mokelumne River and Klie Rd., >West to I-5 See Map COMPLETE
  • 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
  • Portion of South East Stockton: South East Stockton including a portion of Stockton Port and Stockton Waste Water Facility See Map COMPLETE
  • Delta Area: Tracy Blvd & Middle River: >North to Hwy 4, >South one mile south of Middle River, > East to one mile east of Tracy Blvd, >West to one mile west of Tracy Blvd. See Map COMPLETE
  • Rural East Escalon: >North to Dutra Ln., >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map COMPLETE
• Ground spraying for larval mosquito control using Altosid Liquid Larvacide, is scheduled for the morning of Friday, September 8, 2023, between 3:30 a.m. and 5:00 a.m. (Added 9/7/23)
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd.  See Map
    COMPLETE

• Ground spraying for larval mosquito control using VectoBac WDG,  is scheduled for the morning of Thursday, September 7, 2023, between 3:30 a.m. and 5:00 a.m.
  • Portion of South Stockton: >North to E. Jefferson St., >South to E. 9th Street, >East to U.P. RR tracks, >West to S. El Dorado St. See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, September 7, 2023, between 3:30 a.m. and 5:00 a.m.
  • Portion of South Stockton: >North to E. Munford Ave., >South to Industrial Dr.,  >East to Hwy 99, West to Pock Ln. See Map COMPLETE
  • Portion of East Manteca: >North to Northgate Dr., >South to Joseph Dr., East to N. Main St., >West to Tidewater Park. See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, September 1, 2023, between 3:30 a.m. and 6:00 a.m.
  • Portion of Rural East Lodi: >North to Sargent Rd., >South to Harney Ln., >East to Atkins Rd., >West to Tully Rd. See Map COMPLETE
  • Portion of Rural East Lodi: >North to Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd. 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 Rural West Farmington: >North to Little Johns Creek, >South to Gawne Rd., >East to Mobley Rd., >West Stow Ave. See Map COMPLETE
  • Portion of South Lodi: >North to W. Century Blvd., >South to W. Harney Ln., >East to S. Hutchins St., >West to S. Mills Ave. See Map COMPLETE
• Aerial spraying for adult mosquito control using Dibrom, is scheduled for the evening of Wednesday, August 30, 2023, between 8:00 p.m. and 10:30 p.m.
  • North Delta: Portions of Brack Tract, Canal Ranch, Staten Island, and Terminous Tract See Map COMPLETE
  • Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island: See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, August 31, 2023, between 3:30 a.m. and 6:30 a.m.
  • Rural West Lodi: >North to Hwy 12, >South to Telephone Cut, >East to I-5, >West to three miles west of I-5 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
  • Stockton- Portion of Brookside: >North to Riverbrook Dr., >South to Brookview Dr. and Shadowbrook Dr., >East to Brookside Rd., >West to Riverbrook Dr. See Map COMPLETE
  • West Roberts Island:  See Map COMPLETE
  • Rural West Ripon: > North to W. Ripon Rd. > South to E. Moncure Rd. > East to Mohler Rd. > West to S. Frederick Ave. See Map COMPLETE
  • East Rural Ripon: >North to .6 mile south of Greenleaf Rd., >South to Stanislaus River, >East to Sexton Rd., >West to Wagner Rd. See Map COMPLETE
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd. See Map COMPLETE
  • Portion of Rural South County - Division Rd. Area:  >North to Division Rd., >South to San Joaquin and Stanislaus Rivers, >East to Stanislaus River, >West to Two Rivers Rd See Map COMPLETE
  • Portion of Rural South County: See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Wednesday, August 30, 2023, between 3:30 a.m. and 6:00 a.m.
  • Portion of Rural Farmington to Country Rd.: >North to Little John's Creek, >South to 1/2 mile south of Gawne Rd., >East to Country Rd., >West to E. Mariposa Rd. See Map COMPLETE
  • Portion of Rural East Escalon: >North to Kelly Rd., >South to Hwy 120, >East to Seidner Rd., >West to Campbell Rd.  See Map COMPLETE
  • Portion of Rural East Manteca: >North to Lone Tree Rd, >South to Hwy 120, >East to French Camp Rd. and N. Ripon Rd., >West to 1/2 mile west of Jack Tone Rd. See Map COMPLETE
  • 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

• Ground spraying for larval mosquito control using VectoBac WDG,  is scheduled for the morning of Wednesday, August 30, 2023, between 3:30 a.m. and 5:00 a.m.
  • Portion of  North Ripon: >North to Shasta Ave., >South to W. Milgeo Ave., >N. Ripon Rd., >West to Fulton Ave. and Arc Way See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the evening of Thursday, August 24, 2023, between 7:50 p.m. and 10:00 p.m.
  • Ripon Sewer: >North to Doak Rd., >South to Stanislaus County Line, >East to Stockton Ave., >West to Robert Ave. See Map COMPLETE
  • Rural East Ripon: >North to .6 mile south of Greenleaf Rd., >South to Stanislaus River, >East to Sexton Rd., >West to Wagner Rd. See Map COMPLETE
  • Portion of Rural Northeast Tracy:>North to Old River, >South to Canal Blvd., >East to Tom Paine Rd., >West to Tom Paine Slough
    See Map COMPLETE
  • Portion of Rural South Farmington: >North to Little John Creek, >South to 1/2 mile south of Skiff Rd., >East to Biederman Way, >West to Van Allen Rd. See Map (Removed)
  • Portion of Rural West Farmington: >North to Little Johns Creek, >South to Gawne Rd., >East to Mobley Rd., >West Stow Ave. See Map (Added 8-24-23) COMPLETE
  • Portion of Rural Southeast Escalon: >North to Combs Rd., >South to Lee Ave., >East to Victory Ave & McBride Rd., >West to Henry Rd. See Map COMPLETE
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Friday, August 25, 2023, between 3:30 a.m. and 6:00 a.m.
  • 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 East Mountain House Area: >North to Byron Rd., >South to W. Arnaudo Blvd. & Mountain House Pkwy., >East to Byron Rd. and Hansen Rd., >West to W. San Francisco Blvd. & Central Pkwy. See Map COMPLETE
  • Portion of Rural East Manteca: >North to Lone Tree Rd, >South to Hwy 120, >East to French Camp Rd. and N. Ripon Rd., >West to 1/2 mile west of Jack Tone 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 (Added 8-24-23) 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 (Added 8-24-23) COMPLETE
  • Portion of Rural East Lodi: >North to Sargent Rd., >South to Harney Ln., >East to Atkins Rd., >West to Tully Rd. See Map (Added 8-24-23) COMPLETE
  • Portion of Rural East Lodi: >North to Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd. See Map (Added 8-24-23) COMPLETE
  • Portion of Clements Area: >North to Hwy 88, >South to E. Stampede Rd., >East to Clements Rd., >West to Atkins Rd. See Map (Added 8-24-23) COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Wednesday, August 23, 2023 between 8:00 p.m. to 10:30 p.m. 
  • Delta Area West of Stockton: Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island: See Map COMPLETE
  • Rural South County including San Joaquin River Club: See Map See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Thursday, August 24, 2023, between 3:30 a.m. and 6:00 a.m.
  • Portion of Thornton Area: >North to New Hope Rd., >South to Beaver Slough, >East to Mokelumne River and Klie Rd., >West to I-5 See Map COMPLETE
  • Northwest Stockton-Brookside Area: >North to W. March Ln., >South to Brookside Rd., >East to Feather River Dr., >West to Brookside Rd  See Map COMPLETE
  • Rural West Lodi: >North to Hwy 12, >South to White Sough, >East to 1/2 mile west of I5, >West to 2 & 1/3 miles west of I-5 See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the morning of Wednesday, August 23, 2023, between 3:30 a.m. and 6:00 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 COMPLETESee Map
  • Portion of West Escalon: >North to Yosemite Ave., >South to 1st Street, >East to McHenry Ave. & Hwy120, >West to Brennan Rd. See Map COMPLETE
  • Rural Northeast Escalon: >North to Grooms Rd., >South to Thalheim Colony Rd., >East to Victory Ave., >West to Steinegul Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Sunday, August 20, 2023 between 8:15 p.m. to 10:00 p.m. or depending on weather, the evening of Monday, August 21, 2023, between 8:15 p.m. and 10:00 p.m
  • Rural West Delta: Portion of King Island and a Portion of Rindge Tract  See Map COMPLETE
  • North Delta: Portions of Brack Tract, Canal Ranch, Staten Island, and Terminous Tract See Map COMPLETE
     
• Ground spraying for adult mosquito control using DeltaGard® and/or Evergreen 525, is scheduled for the evening of Thursday , August 17, 2023, between 8:00 p.m. and 10:30 p.m.
  • Portion of South East Stockton: South East Stockton including a portion of Stockton Port and Stockton Waste Water Facility See Map COMPLETE
  • Ripon Sewer: >North to Doak Rd., >South to Stanislaus County Line, >East to Stockton Ave., >West to Robert Ave. See Map COMPLETE
  • Rural East Ripon: >North to .6 mile south of Greenleaf Rd., >South to Stanislaus River, >East to Sexton Rd., >West to Wagner Rd. See Map COMPLETE
  • Banta Area: >North to UPRR, >South to UPRR/Altamont Commuter Express, >East to Paradise Cut, >West to Grant Line Rd./Kasson Rd. See Map COMPLETE
  • Portion of Rural South County: See Map COMPLETE
  • West Roberts 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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