Herbicide Tracker California

Applications

1,223 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
Apr 8, 2026Report WEB2620820098
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry1Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Apr 7, 2026Report WEB2620770211
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC10Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Apr 7, 2026Report WEB2620770336
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC29.5Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL, CHOPPER GEN2 HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 7, 2026Report WEB2620820069
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry20Imazapyr, isopropylamine salt, Triclopyr, butoxyethyl ester
ALLIGARE IMAZAPYR 4 SL, ELEMENT 4
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 7, 2026Report WEB2620820080
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry2.7Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Apr 6, 2026Report WEB2620820046
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry6.4Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Apr 6, 2026Report WEB2620820061
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry26Imazapyr, isopropylamine salt, Triclopyr, triethylamine salt
ALLIGARE IMAZAPYR 4 SL, GARLON 3A
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 6, 2026Report WEB2620770141
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC16Triclopyr, butoxyethyl ester
ELEMENT 4
+ 1 tank additive
Forestry / timberlandGround
Apr 6, 2026Report WEB2620769322
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC16Clopyralid, monoethanolamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Apr 4, 2026FOREST RANCH - W 1/2
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC40Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Apr 3, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC69.9Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Apr 3, 2026FOREST RANCH - W 1/2
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC20.7Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 30, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC60.3Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 30, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC48.1Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 27, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC35Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 27, 2026Report WEB2620730139
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry18.3Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 27, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC46Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 26, 2026Report WEB2620730080
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry16.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 26, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC60.1Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 26, 2026Report WEB2620730102
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry15.3Clopyralid, monoethanolamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 25, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC65.8Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Mar 23, 2026Report WEB2620730036
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry22Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 23, 2026Report WEB2620730005
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry22.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 23, 2026Report WEB2620730049
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry3.8Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Mar 23, 2026Report WEB2620730061
Del Norte County
N/AGREEN DIAMOND RESOURCESSouthwest Forestry19.2Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, triethylamine salt
GARLON 3A, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
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California pesticide applications by use site — page 9 · Herbicide Tracker California