Herbicide Tracker California

Applications

420 published applications. Each row shows a reported application, with its product lines together. Separate reports are not combined into assumed projects.

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What the colours mean
California Restricted Material

A pesticide subject to California restricted-material requirements, supported by a county permit or another official source.

Federal Restricted Use

Classified by the U.S. EPA for use by, or under the direct supervision of, a certified applicator.

DPR Water Protection List

On DPR’s official Groundwater Protection List, 3 CCR section 6800, effective July 1, 2026. DPR identifies these chemicals as having the potential to pollute groundwater. This current listing is shown alongside historical application records.

View the DPR source
Environmental concern

A sourced finding about soil mobility, aquatic toxicity, runoff or persistence.

Label hazard

A product label’s DANGER or WARNING signal word, protective equipment requirement, buffer or aquatic-use restriction.

Aerial

Applied from a helicopter or aircraft. This describes the application method.

A groundwater listing is separate from restricted-material status and does not establish contamination or a violation at a particular site. An application with no flags has no recorded flag; that does not establish that it is harmless.

DateApplication / reported siteOwnerReported operator / permitteeApplicatorAcresChemicals appliedUse siteMethod
Aug 28, 2025Report WEB2520230109
Del Norte County
N/AGREEN DIAMOND RESOURCESN/A16.5Imazapyr, isopropylamine salt
NUFARM POLARIS AC COMPLETE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 28, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC19.5Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 27, 2025Report WEB2520230096
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC24Imazapyr, isopropylamine salt, Triclopyr, triethylamine salt
ALLIGARE IMAZAPYR 4 SL, GARLON 3A
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 27, 2025Report WEB2520230045
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC4.5Imazapyr, isopropylamine salt, Triclopyr, triethylamine salt
ALLIGARE IMAZAPYR 4 SL, GARLON 3A
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 27, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC35Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 26, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC10Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 26, 2025Report WEB2520230025
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC9Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Aug 26, 2025Report WEB2520230032
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC18Imazapyr, isopropylamine salt, Triclopyr choline
ALLIGARE IMAZAPYR 4 SL, VASTLAN
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 26, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC14.1Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 25, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC30.2Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 25, 2025Report WEB2520230014
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC39.4Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Aug 24, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC52.7Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 23, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC25Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 23, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC21.5Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 22, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC50Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 21, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC45.8Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 21, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC10Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 20, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC33.4Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 20, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 19, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC35Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 19, 2025FEATHER FALLS
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESSOUTHWEST FORESTRY LLC14.7Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 1 tank additive
Forestry / timberlandGround
Aug 19, 2025MAGALIA
Butte County
N/AMIKE'S LAND MANAGEMENTN/A53Glyphosate, isopropylamine salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, ROUNDUP PRO CONCENTRATE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 19, 2025LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESHIGHLANDERS FOREST LLC82.7Glyphosate, diammonium salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
DPR Water Protection List
Forestry / timberlandGround
Aug 18–20, 2025Report WEB2520186169
Butte County
N/ASILLER BROS. INC.REFORESTATION LOGISTICS, LLC53Glyphosate, isopropylamine salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, ROUNDUP PRO CONCENTRATE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 15, 2025LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESHIGHLANDERS FOREST LLC121Glyphosate, diammonium salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
DPR Water Protection List
Forestry / timberlandGround
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California pesticide applications by use site — page 8 · Herbicide Tracker California