Spray Alerts

Current Spraying Operations:
 

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

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Thursday, October 14, 2021, between 6:30 p.m. and 9:30 p.m. or depending on weather, the evening of Friday, October 15, 2021, between 6:30 p.m. and 9:30 p.m.
  • Portion of Rural South County:  >North to Division Rd., >South to San Joaquin and Stanislaus Rivers, >East to Stanislaus River, >West to Two Rivers Rd. See Map COMPLETE

 

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Past Operations from 2021​:

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Tuesday, October 5, 2021, between 7:00 p.m. and 10:00 p.m. or depending on weather, the evening of Wednesday, October 6, 2021, between 7:00 p.m. and 10:00 p.m.
  • West Ripon and South Manteca: 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
  • Spring Creek Golf and Country Club: See Map COMPLETE
• Ground spraying for larval mosquito control using Vectobac® WDG is scheduled for the morning of Wednesday, October 6, 2021 between 4:00 a.m. to 6:00 a.m or depending on weather, the morning of Thursday, October 7, 2021 between 4:00 a.m. to 6:00 a.m.
  • Portion of Brookside Area: See Map (Added 10/5/21) COMPLETE
• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Wednesday, October 6, 2021, between 7:00 p.m. and 10:00 p.m. or depending on weather, the evening of Thursday, October 7, 2021, between 7:00 p.m. and 10:00 p.m.
  • West Ripon and Rural South County including SJ River Club: See Map (Added 10/5/21) COMPLETE
  • Brack Track: See Map (Added 10/5/21) COMPLETE
• Ground spraying for larval mosquito control using Vectobac® WDG is scheduled for the morning of Thursday, October 7, 2021 between 4:00 a.m. to 6:00 a.m or depending on weather, the morning of Friday, October 8, 2021 between 4:00 a.m. to 6:00 a.m.
  • North Escalon: >North to Mission St., >South to California St., >East to Justin Dr., >West to Sierra Dr. See Map (Added 10/5/21) COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® is scheduled for the morning of Tuesday, October 5, 2021, between 4:00 a.m. and 6:00 a.m. or depending on weather, the morning of Wednesday, October 6, 2021, between 4:00 a.m. and 6:00 a.m.
  • Portion of the Brookside Area: See Map COMPLETE
• Aerial spraying for adult mosquito control using Evergreen 5-25 Air is scheduled for the evening of Thursday, September 30, 2021, between 7:00 p.m. and 10:00 p.m. ​
  • Delta Area: Portions of: Brack Tract, Terminous Tract, and Empire Tract See Map COMPLETE
  • Delta Area: Portion of Staten Island See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, September 30, 2021, between 7:00 p.m. and 10:00 p.m. ​
  • Portion of Rural South County: South of Manteca to San Joaquin and Stanislaus Rivers and East to Austin Rd. See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Friday, October 1, 2021, between 4:00 a.m. and 7:00 a.m. or depending on weather, the morning of Saturday, October 2, 2021, between 4:00 a.m. and 7:00 a.m.
  • Portion of Rural North Escalon: >North to Dove Rd., >South to Lone Tree Rd., >East to Steinegul Rd., >West to Escalon Bellota Rd.  See Map COMPLETE
  • Portion of Rural West Ripon: >North to W. Ripon Rd. and Hutchinson Rd., >South to E. Moncure Rd. >East to Mohler Rd. >West to S. Frederick Ave. & Austin Rd. See Map COMPLETE
  • Portion of Southeast Ripon: >North to California St., >South to Reynolds Ave., >East to Stanislaus River, >West to Hwy 99 See Map COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® is scheduled for the morning of Saturday, September 25, 2021, between 4:30 a.m. and 7:30a.m.
  • South of Linden in Peters Area:>North to Milton Rd., >South to Dietrich Rd., >East to S. Hewitt Rd., >West to Dietrich Rd. See Map  COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, September 23, 2021, between 7:00 p.m. and 10:00 p.m. ​or depending on the weather, the evening of Friday, September 24, 2021, between 7:00 p.m. and 10:00 p.m.
  • Delta Area: Portions of both Roberts Island and Jones Tract See Map Partially Complete-Reschedule Pending
  • Delta Area: Portions of Brack Tract, Canal Ranch, and Terminous Tract See Map COMPLETE
  • Portion of Rural South County: South of Manteca to San Joaquin and Stanislaus Rivers and East to Austin Rd. See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Friday, September 24, 2021, between 4:30 a.m. and 7:00 a.m. or depending on weather, the morning of Saturday, September 25, 2021, between 4:30 a.m. and 7:00 a.m.
  • Portion of the Thornton Area: >North to N. New Hope Rd., >South to W. Kile Rd., >East to Kile Rd., >West to 1/2 mile East of Blossom Rd. See Map COMPLETE
  • Portion of Rural East Lodi: >North to E. Sargent Rd., >South to E. Harney Ln., >East to one mile east of Tully Rd., >West to Tully Rd. See Map Added 9/23/21 COMPLETE
  • Portion of Rural East Escalon: >North to OID Canal, >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map Added 9/23/21 COMPLETE
  • Portion of Rural East Ripon: >North to East River Rd., >South to Stanislaus River, >East to Sexton Rd., >West to Wagner Rd. See Map Added 9/23/21 COMPLETE
  • Portion of Lockeford: >North to Hwy 88, >South to Brandt Rd., >East to one mile east of Jack Tone Rd., >West to Jack Tone Rd. See Map Added 9/23/21 COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Thursday, September 16, 2021, between 7:15 p.m. and 10:00 p.m. or depending on weather, the evening of Friday, September 17, 2021, between 7:15 p.m. and 10:00 p.m.
  • Portion of Rural North Escalon: >North to Dove Rd., >South to Lone Tree Rd., >East to Steinegul Rd., >West to Escalon Bellota Rd.  See Map COMPLETE
  • Portion of Rural East Escalon: >North to OID Canal, >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map COMPLETE
  • Portion of South Manteca: >North to Woodward Ave., >South to Fig Rd., >East to Union Rd., >West to Airport Way See Map Added 9/15/21 COMPLETE
  • Rural South Delta: Portions of: Upper Jones Tract, Union Island and Drexler Tract See Map Added 9/15/21 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 Added 9/15/21 COMPLETE
  • Portion of Rural West Lodi:  >North to W. Harney Ln., >South to Armstrong Rd., >East to UPRR, >West to Ray Rd. See Map Added 9/15/21 COMPLETE
  • Portion of 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 Added 9/15/21 COMPLETE
  • Portion of Rural Northwest Lodi: >North to Mokelumne River, >South to W, Peltier Rd., >East to N. Davis Rd., >West to Devries Rd. See Map Added 9/15/21 COMPLETE
  • Delta Area: Rural Northwest Stockton: Portions of Bishop Tract and Rindge Tract See Map 9/15/21 COMPLETE
     
• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, September 16, 2021, between 7:30 p.m. and 10:00 p.m.
  • Delta Area West of Lodi: Portions of the following tracts: Canal Ranch, Brack, Empire, Terminous, and portions of the following islands: Venice and Bouldin See Map Added 9/15/21 COMPLETE

• Ground spraying for adult mosquito control using DeltaGard® is scheduled for the morning of Thursday, September 16, 2021, between 4:00 a.m. and 6:00 a.m. or depending on weather, the morning of Friday, September 17, 2021, between 4:00 a.m. and 6:00 a.m.
  • Portion of 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

• Aerial spraying for adult mosquito control using EverGreen® ULV 5-25 Air is scheduled for the evening of Tuesday, September 14, 2021, between 7:30 p.m. and 10:00 p.m.
  • Portion of Rural East Lodi: >North to Sargent Rd., >South to Live Oak Rd., >East to 3.25 miles east of Hwy 88, >West to Hwy. 88 See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Monday, September 13, 2021, between 7:15 p.m. and 10:00 p.m. or depending on weather, the evening of Tuesday, September 14, 2021, between 7:15 p.m. and 10:00 p.m.
  • Portion of Rural Southeast Escalon Area:  >North to Greenleaf Rd., >South to Stanislaus River, >East to Stanislaus River, >West to Brennan Rd  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 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 EverGreen® ULV 5-25 Air is scheduled for the evening of Monday, September 13, 2021, between 7:30 p.m. and 10:00 p.m.
  • Rural South County including San Joaquin River Club: See Map COMPLETE
  • Rural South County- South of Manteca to San Joaquin and Stanislaus Rivers and East to Austin Rd.: See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Monday, September 13, 2021, between 7:30 p.m. and 10:00 p.m.
  • Delta Area- Portions of Empire Tract and Terminous Tract: See Map COMPLETE
  • Delta Area West of Lodi: Portions of Brack Tract, Canal Ranch Tract, Terminous Tract, and Staten Island See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Saturday, September 11, 2021, between 4:30 a.m. and 7:00 a.m. or depending on weather, the morning of Sunday, September 12, 2021, between 4:30 a.m. and 7:00 a.m.
  • Portion of North Escalon Area: >North to Mahon Rd., >South to Coley Ave. & Jackson Ave., >East to Campbell Ave., >West to Escalon-Bellota Rd. & Coley Ave. See Map COMPLETE
  • Portion of Rural Northeast Escalon: >North to Lonetree Rd., >South to 1/2 mile south of Lonetree Rd., >East to Henry Rd., >West to Steinegul Rd. See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, September 9, 2021, between 7:30 p.m. and 10:00 p.m.
  • Delta Area- Portions of Empire Tract and Terminous Tract: See Map Postponed until further notice
  • Delta Area- Portions of  Brack Tract, Terminous Tract, Canal Ranch Tract, and Staten Island:  See Map Partially complete

• Aerial spraying for adult mosquito control using EverGreen® ULV 5-25 Air is scheduled for the evening of Thursday,  September 9, 2021, between 7:30 p.m. and 10:00 p.m. ​
  • Rural South County including San Joaquin River Club: See Map Postponed until further notice
  • Rural South County- South of Manteca to San Joaquin and Stanislaus Rivers and East to Austin Rd.: See Map Postponed until further notice
     
• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Thursday, September 9, 2021, between 7:30 p.m. and 10:00 p.m. or depending on weather, the evening of Friday, September 10, 2021, between 7:30 p.m. and 10:00 p.m.
  • Portion of 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 (added Sept. 9, 2021) COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 is scheduled for

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Wednesday, September 8, 2021, between 4:00 a.m. and 7:00 a.m. or depending on weather, the morning of Thursday, September 9, 2021, between 4:00 a.m. and 7:00 a.m.
  • Portion of North Escalon: >North to Mahon Rd., >South to California St., >East to Campbell Ave., >West to Escalon-Bellota Rd. See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Thursday, September 2, 2021, between 7:30 p.m. and 10:30 p.m. or depending on weather, the evening Friday, September 3, 2021, between 7:30 p.m. and 10:30 p.m. 
  • Delta- South Half of Staten Island 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 North Escalon: >North to Dove Rd., >South to Lone Tree Rd., >East to Steinegul Rd., >West to Droge Rd. See Map COMPELETE
  • Portion of Rural South County: See Map COMPLETE
  • Rural South Delta: Portions of Upper Jones Tract, Union Island and Drexler Tract See Map COMPLETE
  • Portion of Rural West Lodi: >North to W. Harney Ln., >South to Armstrong Rd., >East to UPRR, >West to Ray Rd. See Map COMPLETE
  • Portion of Rural West Lodi: >North to Hwy 12, >South to White Sough, >East to 1/2 mile west of I-5, >West to 2 & 1/3 miles west of I-5 See Map COMPLETE
  • Portion of Rural South Escalon:  >North to Greenleaf Rd., >South to Stanislaus River, >East to Stanislaus River, >West to Brennan Rd See Map (Added 9/2/21) COMPLETE
  • Portion of Rural East Ripon: >North to East River Rd., >South to Stanislaus River, >East to Sexton Rd., >West to Wagner Rd. See Map (Added 9/2/21) COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, September 2, 2021, between 8:00 p.m. and 11:00 p.m.
  • Delta- Portions of Brack Tract & Canal Ranch Tract: See Map COMPLETE
  • Delta- Portions of McDonald Island, Rindge Tract, and Lower Roberts Island: See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Friday, September 3, 2021, between 4:00 a.m. and 7:00 a.m. or depending on weather, the morning of Saturday, September 4, 2021, between 4:00 a.m. and 7:00 a.m. 
  • Portion of Southwest Tracy: >North to W. Schulte Rd., >South to Western Pacific RR, >East to Corral Hollow Rd., >West to Lammers Rd. See Map (Added 9/2/21) 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. See Map  (moved from 9/2/21 schedule) COMPLETE
  • Ripon Sewer: >North to Doak Rd., >South to Stanislaus County Line, >East to Stockton Ave., >West to Robert Ave. See Map (Added 9/2/21) COMPELTE
  • 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 9/2/21) COMPLETE
  • Portion of Rural East Lodi: >North to E. Sargent Rd., >South to E. Harney Ln., >East to one mile east of Tully Rd., >West to Tully Rd. See Map (Added 9/2/21) COMPLETE
  • Rural North Victor: >North to Schmeidt Rd., >South to .25 miles south of Kirschenman Rd., >East to Mokelumne River, >West to Bruella Rd. See Map (Added 9/2/21) COMPLETE
  • Portion of Rural Southeast Lodi: >North to E. Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd. See Map (Added 9/2/21) COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Monday, August 30, 2021, between 7:45 p.m. and 11:00 p.m. or depending on weather, the evening Tuesday, August 31, 2021, between 7:45 p.m. and 11:00 p.m. 
  • Delta- Wright and Elmwood Tracts: See Map COMPLETE

• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, August 26, 2021, between 8:00 p.m. and 11:00 p.m.
  • Delta Area- Portions of Shima Tract, Rindge Tract, Wright Tract, Lower Roberts Island:  See Map CANCELED DUE TO WIND
  • Delta Area- Portions of  Brack Tract, Terminous Tract, Canal Ranch Tract, and Staten Island:  See Map COMPLETE
  • Portion of Rural South County: See Map COMPLETE
  • Portion of Rural South County: South of Manteca and West Of Ripon to San Joaquin County Line See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Friday, August 27, 2021, between 4:00 a.m. and 7:00 a.m. or depending on weather, the morning of Saturday, August 28, 2021, between 4:00 a.m. and 7:00 a.m. 
  • Portion of Rural West Lodi: Guard Rd. & White Slough area west of I-5 and south of Hwy 12  See Map  COMPLETE
  • West Roberts Island: 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 Northwest Stockton: >North to Stanfield Dr., >South to Mosher Slough, >East to Thornton Rd., >West to Bainbridge Pl. See Map COMPLETE
  • Portion of Rural North County: >North to San Joaquin / Sacramento County Line, >South to E. Collier Rd., >East to N. Dustin Rd., >West to N. Cherokee Ln. See Map (Added 8/26/21) 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 8/26/21) COMPLETE
  • 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 (Added 8/26/21) COMPLETE
  • Portion of Rural Southeast Lodi: >North to E. Kettleman Ln., >South to Tokay Colony Rd., >East to Jack Tone Rd., >West to Hibbard Rd. See Map (Added 8/26/21) COMPLETE
  • Portion of Rural South Escalon: >North to Jones Rd., >South to Stanislaus River, >East to McHenry Ave., >West to Brennan Rd. See Map (Added 8/26/21) 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 (Added 8/26/21) COMPLETE
  • Portion of Rural East Escalon: >North to OID Canal, >South to Hwy 120, >East to Victory Ave., >West to Henry Rd. See Map (Added 8/26/21) COMPLETE
  • Portion of Rural North Escalon: >North to Dove Rd., >South to Lone Tree Rd., >East to Steinegul Rd., >West to Escalon Bellota Rd. See Map (Added 8/26/21) COMPLETE
  • Portion of Rural Southeast Escalon:  >North to Vine Ave., >South to East River Rd., >East to Victory Ave., >West to Seidner Rd. See Map (Added 8/26/21) COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the morning of Tuesday, August 24, 2021, between 5:00 a.m. and 7:00 a.m. or depending on weather, the morning of Wednesday, August 25, 2021, between 5:00 a.m. and 7:00 a.m. 
  • Portion of Rural Southeast Escalon:  >North to Vine Ave., >South to East River Rd., >East to Victory Ave., >West to Seidner Rd.  See Map  COMPLETE

• Aerial spraying for adult mosquito control using Evergreen 5-25 Air is scheduled for the evening of Sunday, August 22, 2021, between 8:00 p.m. and 10:00 p.m. ​or depending on the weather, the evening of Monday, August 23, 2021, between 8:00 p.m. and 10:00 p.m.
  • Rural East Lodi: >North to Sargent Rd., >South to Live Oak Rd., >East to 3.25 miles east of Hwy 88, >West to Hwy. 88. See Map COMPLETE

• Aerial and/or Ground spraying for adult mosquito control using Dibrom for aerial work and Evergreen 5-25 and/or DeltaGard® for ground work is scheduled for the evening of Thursday, August 19, 2021, between 8:00 p.m. and 11:00 p.m. ​or depending on the weather, the evening of Friday, August 20, 2021, between 8:00 p.m. and 11:00 p.m.
  • Portion of Rural South County: Rural South County- South of Manteca and West Of Ripon to San Joaquin County Line See Map COMPLETE
     
• Aerial spraying for adult mosquito control using Dibrom is scheduled for the evening of Thursday, August 19, 2021, between 8:00 p.m. and 11:00 p.m. ​or depending on the weather, the evening of Friday, August 20, 2021, between 8:00 p.m. and 11:00 p.m.
  • Delta Area: Portions of Brack Tract, Terminous Tract including Tower Park, Bouldin Island, and Staten Island See Map COMPLETE

• Ground spraying for adult mosquito control using Evergreen 5-25 and/or DeltaGard® is scheduled for the evening of Thursday, August 19, 2021, between 8:00 p.m. and 11:00 p.m. or depending on weather, the evening of Friday, August 20, 2021, between 8:00 p.m. and 11:00 p.m. 
  • Portion of Rural East Lodi:  >North to E. Sargent Rd., >South to Live Oak Rd., >East to two miles east of Jack Tone Rd., >West to Hibbard Rd. See Map COMPLETE
  • Delta Area: West Roberts Island See Map COMPLETE
  • Portion of Rural South County: See Map COMPLETE
  • Portion of Rural North Escalon: >North to Dove Rd., >South to Lone Tree Rd., >East to Steinegul Rd., >West to Escalon Bellota Rd. See Map (Added 8/19/21) 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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