Herbicide Tracker California

Applications

228 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
Sep 10, 2026Report WEB2621454694
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC16Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Sep 9, 2026Report WEB2621454652
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC20Triclopyr, triethylamine salt
GARLON 3A
Forestry / timberlandGround
Sep 8, 2026Report WEB2621454630
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC17Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 8, 2026Report WEB2621454644
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC15Clopyralid, monoethanolamine salt, Glyphosate, isopropylamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, ROUNDUP PRO CONCENTRATE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 8, 2026Report WEB2621454605
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC15Glyphosate, isopropylamine salt, Imazapyr, isopropylamine salt, Sulfometuron-methyl
CHOPPER GEN2 HERBICIDE, OUST XP HERBICIDE, ROUNDUP PRO CONCENTRATE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 7, 2026Report WEB2621454563
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC29.5Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 7, 2026Report WEB2621452092
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC29.5Clopyralid, monoethanolamine salt, Triclopyr, butoxyethyl ester
ELEMENT 4, TRANSLINE
DPR Water Protection List
Forestry / timberlandGround
Sep 7, 2026Report WEB2621454582
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC16Clopyralid, monoethanolamine salt, Sulfometuron-methyl, Triclopyr, butoxyethyl ester
ELEMENT 4, OUST XP HERBICIDE, TRANSLINE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Sep 4, 2026Report WEB2621452073
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC17.5Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Sep 3, 2026Report WEB2621452021
Del Norte County
N/AGREEN DIAMOND RESOURCESHighlanders Forest LLC5Imazapyr, isopropylamine salt
ALLIGARE IMAZAPYR 4 SL
DPR Water Protection List
Forestry / timberlandGround
Sep 1, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESN/A15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 31, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 28, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 28, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC14Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 28, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC4Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 27, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 27, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 26, 2026COHASSET
Butte County
N/AMIKE'S LAND MANAGEMENTACC FORESTRY LLC14Triclopyr, triethylamine salt
GARLON 3A
+ 1 tank additive
Forestry / timberlandGround
Aug 26, 2026COHASSET
Butte County
N/AMIKE'S LAND MANAGEMENTACC FORESTRY LLC23Glyphosate, isopropylamine salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, ROUNDUP PRO CONCENTRATE HERBICIDE
+ 1 tank additive
DPR Water Protection List
Forestry / timberlandGround
Aug 25, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC19Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 25, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC14Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 25, 2026LOMO - SE 1/4
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESHIGHLANDERS FOREST LLC7Glyphosate, diammonium salt, Imazapyr, isopropylamine salt
ALLIGARE ROTARY 2 SL, DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
DPR Water Protection List
Forestry / timberlandGround
Aug 24, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC17Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 24, 2026FOREST RANCH
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC3Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
Aug 24, 2026LOMO
Butte County
SIERRA PACIFIC INDUSTRIESSIERRA PACIFIC INDUSTRIESACC FORESTRY LLC15Glyphosate, diammonium salt
DREXEL DUPLICATOR 6 HERBICIDE
+ 2 tank additives
Forestry / timberlandGround
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California pesticide applications by use site — page 3 · Herbicide Tracker California