Large Area Mosquito Treatment History
Below is the history of large area treatments for 2024
Ultra Low Volume (ULV) Treatment
| Application Date | Time | Location/City | Treatment | Reason | Status |
|---|---|---|---|---|---|
| 7/22/24 - 7/24/24 | 12:00 a.m. - 5:00 a.m. | Huntington Beach | AquaDuet | Mosquito abundance | Complete |
| 7/25/24 - 7/27/24 | 12:00 a.m. - 5:00 a.m. | Huntington Beach | AquaDuet | Mosquito abundance | Complete |
| 7/29/24 - 7/31/24 | 12:00 a.m. - 5:00 a.m. | Huntington Beach | AquaDuet | Mosquito abundance | Complete |
| 8/15/24-8/17/24 | 3:00 a.m. - 5:00 a.m. | Westminster | DeltaGard | Mosquito abundance | Complete |
| 8/15/24-8/17/24 | 3:00 a.m. - 5:00 a.m. | Rancho Santa Margarita | DeltaGard | Mosquito abundance | Complete |
| 8/20/24-8/22/24 | 3:00 a.m. - 5:00 a.m. | Westminster | DeltaGard | Mosquito abundance | Complete |
| 8/27/24 - 8/29/24 | 1:00 a.m. - 5:00 a.m. | Brea | DeltaGard | Mosquito abundance | Complete |
| 8/27/24 - 8/29/24 | 1:00 a.m. - 5:00 a.m. | La Habra | DeltaGard | Mosquito abundance | Complete |
| 8/27/24 - 8/29/24 | 1:00 a.m. - 5:00 a.m. | Westminster | DeltaGard | Mosquito abundance | Complete |
| 8/28/24 - 8/30/24 | 1:00 a.m. - 5:00 a.m. | Santa Ana | DeltaGard | Mosquito abundance | Complete |
| 8/27/24 - 8/29/24 | 1:00 a.m. - 5:00 a.m. | Stanton | DeltaGard | Mosquito abundance | Complete |
| 9/4/24 - 9/6/24 | 1:00 a.m. - 5:00 a.m. | La Habra | DeltaGard | Mosquito abundance | Complete |
| 9/4/24 - 9/6/24 | 1:00 a.m. - 5:00 a.m. | Stanton | DeltaGard | Mosquito abundance | Complete |
| 9/4/24 - 9/6/24 | 1:00 a.m. - 5:00 a.m. | Westminster | DeltaGard | Mosquito abundance | Complete |
| 9/10/24 - 9/12/24 | 1:00 a.m. - 5:00 a.m. | Brea | DeltaGard | Mosquito abundance | Complete |
| 9/10/24 - 9/12/24 | 1:00 a.m. - 5:00 a.m. | Garden Grove | DeltaGard | Mosquito abundance | Complete |
| 9/10/24 - 9/12/24 | 1:00 a.m. - 5:00 a.m. | Mission Viejo | DeltaGard | Mosquito abundance | Complete |
| 9/10/24 - 9/12/24 | 1:00 a.m. - 5:00 a.m. | Orange | DeltaGard | Mosquito abundance | Complete |
| 9/10/24 - 9/12/24 | 1:00 a.m. - 5:00 a.m. | Santa Ana | DeltaGard | Mosquito abundance | Complete |
| 9/12/24 - 9/13/24 | 1:00 a.m. - 5:00 a.m. | Santa Ana | DeltaGard | Mosquito abundance | Complete |
| 9/17/24 - 9/19/24 | 1:00 a.m. - 5:00 a.m. | Orange | DeltaGard | Mosquito abundance | Complete |
| 9/18/24 - 9/20/24 | 1:00 a.m. - 5:00 a.m. | Garden Grove | DeltaGard | Mosquito abundance | Complete |
| 9/19/24 - 9/21/24 | 1:00 a.m. - 5:00 a.m. | Santa Ana | DeltaGard | Mosquito abundance | Complete |
| 10/1/24 - 10/3/24 | 1:00 a.m. - 5:00 a.m. | Anaheim | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
| 10/5/24-10/7/24 | 3:00 a.m. - 5:00 a.m. | Orange | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
| 10/8/24 - 10/10/24 | 3:00 a.m. - 5:00 a.m. | Anaheim | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
| 10/11/24, 10/14/24 - 10/15/24 | 3:00 a.m. - 5:00 a.m. | Santa Ana | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
| 10/5/24-10/7/24 | 3:00 a.m. - 5:00 a.m. | Orange | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
Drone Treatment
| Application Date | Time | Location | Treatment | Reason | Status |
|---|---|---|---|---|---|
| 4/8/25 | 10:00 a.m. - 12:00 p.m. | Bolsa Chica North, Huntington Beach | VectoBac GS | Mosquito Abundance | Complete |
| 4/8/25 | 12:00 p.m. - 2:00 p.m. | Shipley Nature Center, Huntington Beach | VectoBac GS | Mosquito Abundance | Complete |
| 4/8/25 | 12:00 p.m. - 2:00 p.m. | Shipley Nature Center, Huntington Beach | VectoBac GS | Mosquito Abundance | Complete |
| 1/16/25 | 8:00 a.m. - 2:00 p.m. | Bartlett Park, Newland Marsh | VectoBac GS | Mosquito abundance | Complete |
| 1/11/24 | 8:00 am - 12:00 pm | Bolsa Chica, Harriett M. Wieder Regional Park, and John A. Thomas Bolsa Lease, Huntington Beach | Vectobac GS | Mosquito abundance | Complete |
| 4/4/24 | 9:00 a.m. - 12:00 p.m. | Fairview Park Vernal Pools, Costa Mesa | Vectobac GS | Treatment continuance | Complete |
| 5/2/24 | 9:00 a.m. - 12:00 p.m. | Fairview Park Vernal Pools | Vectobac GS | Treatment continuance | Complete |
| 5/23/24 | 9:00 a.m. - 11:00 a.m. | Newland Marsh | VectoBac GS | Mosquito abundance | Complete |
| 5/29/24 | 9:00 a.m. - 10:00 a.m. | Anaheim Lakes | VectoBac GS | Treatment continuance | Complete |
| 5/29/24 | 10:30 a.m. - 2:00 p.m. | UCI Marsh | VectoBac GS | Treatment continuance | Complete |
| 6/4/24 | 8:30 a.m. - 10:00 a.m. | Newland Marsh | VectoBac GS | Treatment continuance | Complete |
| 6/4/24 | 10:00 a.m. - 2:00 p.m. | UCI Marsh | VectoBac GS | Treatment continuance | Complete |
| 6/26/24 | 9:00 a.m. - 10:00 a.m. | Bartlett Park | VectoBac GS | Mosquito abundance | Complete |
| 6/26/24 | 10:00 a.m. - 11:30 a.m. | Newland Marsh | VectoBac GS | Treatment continuance | Complete |
| 6/26/24 | 11:30 a.m. - 1:00 p.m. | Anaheim Lakes Auxiliary Pond | VectoBac GS | Treatment continuance | Complete |
| 6/28/24 | 9:00 a.m. - 1:00 p.m. | UCI Marsh | VectoBac GS | Treatment continuance | Complete |
| 7/2/24 | 9:00 a.m. - 10:00 a.m. | Bartlett Park | VectoBac GS | Mosquito abundance | Complete |
| 7/2/24 | 10:00 a.m. - 11:00 a.m. | Newland Marsh | VectoBac GS | Treatment continuance | Cancelled |
| 7/2/24 | 11:00 a.m. - 1:00 p.m. | Harriett Wieder Regional Park, Bolsa Chica Marsh | VectoBac GS | Treatment continuance | Complete |
| 7/10/24 | 9:00 a.m. - 1:00 p.m. | UCI Marsh | VectoBac GS | Treatment continuance | Complete |
| 7/17/24 | 9:00 a.m. - 1:00 p.m. | UCI Marsh | VectoBac GS | Treatment continuance | Complete |
| 8/1/24 | 9:00 a.m. - 10:00 a.m. | Bartlett Park | VectoBac GS | Treatment continuance | Complete |
| 8/1/24 | 10:30 a.m. - 1:00 p.m. | Harriett Wieder Regional Park, Bolsa Chica Marsh | VectoBac GS | Treatment continuance | Complete |
| 8/27/24 | 11:00 a.m. - 1:00 p.m. | Randall Preserve | VectoBac GS | Treatment continuance | Cancelled |
| 9/10/24 | 9:00 a.m. - 10:00 a.m. | Bartlett Park | Vectobac GS | Treatment continuance | Cancelled |
| 9/10/24 | 10:00 a.m. - 1:00 p.m. | Bolsa Chica Wetlands | Vectobac GS | Treatment continuance | Complete |
| 9/20/24 | 9:00 a.m. - 1:00 p.m. | Bartlett Park, Shipley's Nature Center, and Harriett M. Wieder Regional Park | Vectobac GS | Mosquito abundance | Complete |
Ground-Based Wide Area Larvicide (WALS) Treatment
| Application Date | Time | Location | Product | Reasons | Status |
|---|---|---|---|---|---|
| 3/14/24 | 10:30 a.m. - 1:00 p.m. | Fairview Park Vernal Pools, Costa Mesa | Vectobac GS | Mosquito abundance | Cancelled |
| 3/19/24 | 9:30 am-12:00 pm | Fairview Park Vernal Pools, Costa Mesa | Vectobac GS | Mosquito abundance | Complete |
| 3/22/24 | 9:30 am-12:00 pm | Bolsa Chica Wetlands, Huntington Beach | Vectobac WDG | Mosquito abundance | Complete |
| 4/9/24 | 9:00 a.m. - 12:00 p.m. | Bolsa Chica Wetlands, Huntington Beach | Vectobac WDG | Mosquito abundance | Complete |
| 4/16/24 | 9:00 a.m. - 12:00 p.m. | Randall Preserve, Newport Beach, Costa Mesa | Vectobac WDG | Mosquito abundance | Complete |
| 4/25/24 | 9:00 a.m. - 11:00 a.m. | Randall Preserve, Newport Beach, Costa Mesa | Vectobac WDG | Treatment continuance | Complete |
| 4/25/24 | 11:00 a.m. - 1:00 p.m. | Bolsa Chica Wetlands, Huntington Beach | Vectobac WDG | Treatment continuance | Complete |
| 5/8/24 | 9:00 a.m. - 11:00 a.m. | UCI Marsh | Vectobac WDG | Mosquito abundance | Complete |
| 5/8/24 | 11:00 a.m. - 1:00 p.m. | Bolsa Chica Wetlands, Harriett M. Wieder Regional Park | Vectobac WDG | Treatment continuance | Complete |
| 5/9/24 | 9:00 a.m. - 11:00 a.m. | Randall Preserve (formerly known as Banning Ranch) | Vectobac WDG | Treatment continuance | Complete |
| 5/17/24 | 8:30 a.m. - 10:00 a.m. | UCI Marsh | Vectobac WDG | Treatment continuance | Complete |
| 5/17/24 | 10:00 a.m. - 11:30 p.m. | Randall Preserve (formerly known as Banning Ranch) | Vectobac WDG | Treatment continuance | Complete |
| 5/17/24 | 11:30 a.m. - 1:30 p.m. | Bolsa Chica Wetlands, Harriett M. Wieder Regional Park | Vectobac WDG | Treatment continuance | Complete |
| 10/8/24 - 10/10/24 | 3:00 a.m. - 5:00 a.m. | Anaheim | DeltaGard and Vectobac WDG | Mosquito abundance | Complete |
| 11/5/24 - 11/7/24 | 3:00 a.m. - 5:00 a.m. | Orange | DeltaGard and VectoBac WDG | Mosquito abundance | Complete |
