News & Spray Alerts
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 Pyrocide 7067, is scheduled for the evening of Friday, July 21, 2017 between 4:00 a.m. and 7:00 a.m. *or the evening of Saturday, July 22, 2017 between 4:00 a.m. and 7:00 a.m.  
    • Rural West Escalon: 1 mile North of Lone Tree Rd., > 1 mile South of Lone Tree Rd., > East to Campbell Rd., > West to Brennan Rd. See Map  COMPLETE
    • Rural East Escalon: 1 mile North of Hwy 120, > South to Hwy 120, > East to Victory Rd., > West to Henry Rd. See Map COMPLETE

 

  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the evening of Thursday, July 20, 2017 between 8:25 p.m. and 11:00 p.m. *or the evening of Friday, July 21, 2017 between 8:25 p.m. and 11:00 p.m.  
    • Ripon Sewer: North to Doak Rd., > South to Stanislaus County Line, > West to Roberts Ave., > East to Stockton Ave. See Map COMPLETE
    • Portion of Rural Delta south of Hwy 12: North to Hwy 12, > South to Telephone Cut, > West to 3 miles west of I-5, > East to 1 mile west of I-5 See Map  COMPLETE
    • Portion of Brack Tract- Rural Delta Area: North to Hog Slough, > South to Sycamore Slough, > West to S. Fork Mokelumne River, > East to 1.5 miles west of I-5  See Map COMPLETE

 

  • Aerial spraying for adult mosquito control using Pyrocide 7396, is scheduled for the evening of Thursday, July 20, 2017 between 8:25 p.m. and 11:00 p.m. *or the evening of Friday, July 21, 2017 between 8:25 p.m. and 11:00 p.m.  
    • Rural South County: See Map COMPLETE

 


The District will be conducting periodic aerial larviciding work to target mosquitoes in their aquatic stage. The aerial larviciding will be along the San Joaquin River, Mokelumne River, and Stanislaus River corridors, as well as other areas of significant flooding where mosquito development is found. Larviciding in public areas will be posted to this page when possible. Posted 6/20/17

No aerial larviciding schedule 7/19/17











  








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Past spray operations completed:

  • Aerial spraying for larval mosquito control using VectoBac GS, is scheduled for the morning of Thursday, July 13, 2017 between 7:00 am and 12 noon, *or the morning of Friday, July 14, 2017 between 7:00 a.m. and 12:00 noon.
    White Slough Wildlife Area COMPLETE

 

  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the evening of Thursday, July 13, 2017 between 8:30 p.m. and 11:00 p.m. *or the evening of Friday, July 14, 2017 between 8:30 p.m. and 11:00 p.m.  
    • Ripon Sewer: North to Doak Rd., > South to Stanislaus County Line, > West to Roberts Ave., > East to Stockton Ave. See Map COMPLETE
    • Rural North Escalon: North to Edwards Ave., > South to Magnolia Rd., > West to Brennan Rd., > East to Campbell Rd. See Map (added 7/13/17)  COMPLETE

 

  • Aerial spraying for adult mosquito control using Trumpet EC, is scheduled for the evening of Friday, July 14, 2017 between 8:30 p.m. and 11:00 p.m. *or the evening of Saturday, July 15, 2017 between 8:30 p.m. and 11:00 p.m.  
    • Rural South County including San Joaquin River Club: See Map COMPLETE
    • Rural Northwest Stockton Delta area: Portions of Wright/Elmwood Tract, Shima Tract and Rindge Tract See Map  COMPLETE

 

  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the morning of Monday, July 10, 2017 between 4:00 a.m. and 7:00 a.m. *or the morning of Tuesday, July 11, 2017 between 4:00 a.m. and 7:00 a.m.  
    • Portion of Brack Tract- Rural Delta Area: North to Hog Slough, > South to Sycamore Slough, > West to S. Fork Mokelumne River, > East to 1.5 miles west of I-5  See Map COMPLETE
    • Portion of South West Manteca: North to Wawona St., > South to Hwy 120, > East to S. Union Rd., >West to Airport Way See Map  COMPLETE
    • Portion of Rural South County: See Map  COMPLETE

 

  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the morning of Friday, June 30, 2017 between 4:00 a.m. and 6:00 a.m. *or the morning of Saturday, July 1, 2017 between 4:00 a.m. and 6:00 a.m.  
    • Portion of Rural North County: North to W. Jahant Rd/Mokelumne River, > South to W. Peltier Rd., > West to Devries Rd., > East to N. Bender Rd. See Map  COMPLETE
  • Aerial spraying for larval mosquito control using VectoBac GS, is scheduled for the morning of Thursday, June 29, 2017 between 7:00 am and 12 noon, *or the morning of Friday, June 30, 2017 between 7:00 a.m. and 12:00 noon.
    White Slough Wildlife Area COMPLETE

 

  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the morning of Friday, June 23, 2017 between 4:00 a.m. and 7:00 a.m. *or the morning of Saturday, June 24, 2017 between 4:00 a.m. and 7:00 a.m.  
    • Portion of West Brack Tract: See Map COMPLETE
    • Southern Portion of the City of Ripon: > North to W. Main St., > South to Doak Blvd , > West to S. Wilma Ave., > East to S. Stockton Ave. See Map  COMPLETE
    • Portion of South San Joaquin County area: > North to 1 mile north of E. McMullin Rd., > South to Perrin Rd., > East to Airport Way, > West to S. Hays Rd. See Map COMPLETE
    • Ripon Sewer, Stanislaus River Corridor, Spring Creek Golf Course: See Map COMPLETE

 

  • Aerial spraying for adult mosquito control using Trumpet EC, is scheduled for the evening of Thursday, June 15, 2017 between 8:30 p.m. and 11:00 p.m. *or the evening of Friday, June 16, 2017 between 8:30 p.m. and 11:00 p.m.  
    • Portion of Rural West & East Ripon and Southern Portion of the City of Ripon: See Map 1 & Map 2  COMPLETE
  • Aerial spraying for larval mosquito control using VectoBac GS, is scheduled for the morning of Tuesday, June 13, 2017 between 7:00 am and 12 noon, *or the morning of Wednesday, June 14, 2017 between 7:00 a.m. and 12:00 noon.
    Areas adjacent to the Stanislaus River including; but not limited to, Ripon River Crossing, Jack Tone Golf Course, and the Ripon Sewer property.  Complete
  • Ground spraying for adult mosquito control using Pyrocide 7067, is scheduled for the morning of Monday, June 12, 2017 between 4:00 a.m. and 7:00 a.m. *or the morning of Tuesday, June 13, 2017 between 4:00 a.m. and 7:00 a.m.  
    • Portion of Rural South County: See Map Complete
    • Ripon Sewer, Southern Portion of the City of Ripon, Spring Creek Golf Course:  See Map  Complete
      

 

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Mosquito Control Response to Recent Flooding and Heavy Storms

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News and Spray Alerts

Notes

* Rescheduling Cancelled Spraying: Scheduled spraying operations will move to the following day if weather conditions require canceling.

Hotline

West Nile Virus and
Dead Bird Hotline

(877) 968-BIRD (2473)

or online at westnile.ca.gov