California DPR Restricted Use Pesticide Records for Vineyards

By VitiScribe Editorial·February 11, 2025·Updated April 23, 2025

California DPR requires RUP records filed within 24 hours of application in most counties -- that's the timeline that separates compliant California vineyard operators from those who accumulate citations. Restricted-use pesticide records have additional requirements beyond standard pesticide use reports, and the consequences of getting them wrong are more severe than for general-use pesticide violations.

TL;DR

Mancozeb (Dithane, Penncozeb) is a restricted-use pesticide in California due to reproductive toxicity concerns -- every mancozeb application in a California vineyard requires a 24-hour PUR filing in expedited counties
Missing or invalid applicator license numbers (PCO, PCA, or QAC) are the single most common DPR citation in vineyard RUP records
The 24-hour filing clock starts at completion of the application, not the end of the work day -- late-filed RUP records carry citations of $500 to $2,000 per violation with escalating penalties for repeat offenses
Napa, Sonoma, Mendocino, and Monterey are among the counties with expedited 24-hour RUP filing requirements -- check your specific county's current deadline
Farm owners and employees may apply RUPs on their own property with a Qualified Applicator Certificate (QAC), but the QAC license number must appear on every RUP record
California state DPR may designate additional restricted-use pesticides beyond federal EPA requirements -- check cdpr.ca.gov for the current complete list

VitiScribe auto-flags RUP products and requires certified applicator license number entry before you can submit the spray record. That single feature -- requiring the license number at the time of data entry rather than as an afterthought -- prevents the most common RUP compliance error in California vineyards.

What Makes a Pesticide Restricted-Use in California

California's restricted-use pesticide list includes products that pose higher risk to human health, the environment, or that require special handling beyond the requirements of the federal label. California can designate pesticides as restricted-use at the state level beyond what federal EPA requires.

Common restricted-use pesticides in California vineyards:

Mancozeb (Dithane, Penncozeb, Manzate) -- RUP in California due to reproductive toxicity concerns. Widely used for downy mildew management. If you're applying mancozeb to your Chardonnay blocks, every application is a RUP record requiring 24-hour filing.

Chlorpyrifos (Lorsban) -- Check current California registration status. California has implemented notable restrictions on chlorpyrifos use, and the registration situation has changed frequently. As of the information available at this writing, chlorpyrifos use in California is heavily restricted. Confirm current registration status before any application.

Phosmet (Imidan) -- Organophosphate used for leafhopper and mealybug management. RUP in California.

1,3-Dichloropropene (Telone II) -- Soil fumigant used for nematode and phylloxera management in new vineyard sites. RUP with notable additional restrictions.

Methyl bromide -- Highly restricted, only permitted under specific quarantine and critical-use exemptions. Requires separate state and federal permits beyond standard RUP compliance.

Various organophosphates used in vineyard IPM -- check the DPR restricted use pesticide list at cdpr.ca.gov for the current complete list.

Who Can Apply Restricted-Use Pesticides in California

California requires that all restricted-use pesticide applications in California be made by or under the direct supervision of a California-licensed Pest Control Operator (PCO) or Pest Control Adviser (PCA).

Pest Control Operator (PCO) license: Required to commercially apply pesticides for hire in California. PCO license is issued by the California Department of Pesticide Regulation. License number must appear on every pesticide use report.

Pest Control Adviser (PCA) license: PCAs provide pest control recommendations and can supervise RUP applications. PCA license number is required on RUP records when the PCA is the responsible party for the recommendation.

Farm owner/operator exemption: California allows agricultural operators to apply pesticides on property they own or are directly employed to farm without a PCO license, but they must still hold a Qualified Applicator Certificate (QAC) for restricted-use pesticides. The QAC license number must appear on RUP records for owner-applied applications.

What this means for your records: Every RUP application record must include a valid California license number -- PCO, PCA, or QAC. Missing or invalid license numbers are the single most common DPR citation in vineyard RUP records. VitiScribe requires you to enter this number before you can submit an RUP spray entry, building the compliance check into the workflow rather than leaving it to memory.

Filing Deadlines: The 24-Hour Rule

California's pesticide use reporting requirements include expedited filing deadlines for restricted-use pesticides in most counties.

Standard RUP filing deadline: 7 days to the County Agricultural Commissioner (CAC) for most counties.

Expedited filing counties: Several major California wine counties operate under expedited reporting requirements where RUPs must be filed within 24 hours of application. These include Napa, Sonoma, Mendocino, Monterey, and others. Check with your specific county's Agricultural Commissioner office for current filing deadlines, as these can change.

How the deadline works: The clock starts at the time of application completion. If you finish applying at 5 PM on a Wednesday, a 24-hour filing deadline means the record must reach the CAC by 5 PM Thursday. Electronic filing systems in many counties allow same-day submission.

Consequences of late filing: DPR citations for late-filed RUP records typically range from $500 to $2,000 per violation, with escalating penalties for repeat violations. In some counties, CACs conduct proactive record request audits rather than waiting for complaints -- meaning your filing history is actively monitored.

Required Fields for California RUP Records

California DPR's Pesticide Use Report (PUR) requires specific fields for all commercial pesticide applications, with additional requirements for restricted-use pesticides.

Standard PUR fields (all pesticides):

Grower or operator name and contact information
Application site (section, township, range, or address)
County
Application date
Commodity (wine grapes)
Pesticide product name
EPA pesticide registration number
Application method
Amount of pesticide used (units)
Units treated (acres)
Target pest

Additional fields for RUP records:

Licensed applicator name and license number (PCO, PCA, or QAC)
License type designation

VitiScribe's DPR integration: When you log a spray application in VitiScribe and select an RUP-classified product, the system flags it as restricted-use and requires you to enter the applicator license number before the record can be submitted. The record is formatted for PUR submission with all required fields pre-populated from your vineyard profile and product library. See California DPR spray record requirements in full detail.

County Agricultural Commissioner Filing

California's PUR system routes through County Agricultural Commissioners. Each county has its own filing office and, in many cases, its own online submission portal.

Filing methods vary by county:

Electronic submission through county CAC portal (most counties)
VitiScribe API integration with some county systems
Printed PUR forms (still accepted in most counties, but slower)

Your County Agricultural Commissioner's office is the authoritative source for current filing requirements, deadlines, and submission methods for your specific county. Filing requirements have changed in some counties in recent years, and what was true two seasons ago may not reflect current requirements.

Record Retention for California RUP Records

California requires pesticide use records to be retained for a minimum of 2 years from the date of application. This applies to all pesticide applications, not just RUPs. For operations pursuing organic or sustainable certification, longer retention periods (3-5 years) are often required by the certification body.

DPR and county CAC inspectors can audit records going back 2 years. Inspections can be announced or unannounced, and inspectors may request records on-site during a farm visit or may request that records be provided within a specified number of days.

VitiScribe stores all spray records securely in cloud backup with no record expiration. Your records remain accessible and searchable for as long as you maintain your subscription, and records can be exported for local backup or archive purposes. See the pricing guide for retention guarantees across plan tiers.

Frequently Asked Questions

What California restricted use pesticides are commonly used in vineyards?

Common RUPs in California vineyards include mancozeb (Dithane, Penncozeb -- EBDC fungicide used for downy mildew management), phosmet (Imidan -- organophosphate for leafhopper and mealybug), and various soil fumigants (1,3-dichloropropene/Telone II for nematode management in vineyard replanting). Chlorpyrifos has been substantially restricted in California -- confirm current registration status before any use. The complete current California restricted-use pesticide list is maintained at cdpr.ca.gov and updated periodically as new designations are made or existing ones are modified.

What are the CA DPR filing deadlines for restricted use pesticide records?

Filing deadlines for RUP records in California vary by county but are either 7 days (standard) or 24 hours (expedited filing counties). Major wine counties including Napa, Sonoma, and Mendocino operate under expedited filing requirements. The 24-hour clock starts at the completion of the application. Check with your specific County Agricultural Commissioner's office for the current filing deadline in your county -- expedited filing requirements have expanded to more counties in recent years. Late-filed RUP records are among the most commonly cited compliance violations for California vineyard operators.

Who can legally apply restricted use pesticides in California vineyards?

Restricted-use pesticides in California must be applied by or under the direct supervision of a California-licensed Pest Control Operator (PCO), Pest Control Adviser (PCA), or a farm operator holding a Qualified Applicator Certificate (QAC). Farm owners and their direct employees can apply RUPs on property they own or work with a QAC license -- they do not need a commercial PCO license for their own operation. However, any individual applying or supervising RUP applications must hold a valid California license, and the license number must appear on every RUP use report. Applying RUPs without a valid license or without documenting the applicator's license number is a DPR violation.

Does California require a PCA written recommendation for all restricted-use pesticide applications in vineyards?

In most California commercial agricultural settings, a licensed Pest Control Adviser (PCA) written recommendation is required before a restricted-use pesticide can be applied. The PCA provides a written recommendation that specifies the product, rate, site, and target pest -- this document becomes part of your compliance record alongside the PUR. Some exemptions apply for on-farm owner applications under specific conditions, but the safest practice is to secure a PCA recommendation for all RUP applications and retain it with your spray records. County Agricultural Commissioners may request PCA recommendation documents during an audit of your RUP records.

How does VitiScribe handle the 24-hour filing deadline for RUP records in expedited California counties?

VitiScribe's spray record entry triggers an immediate flag when a restricted-use product is selected, prompting you to complete the RUP-specific required fields including applicator license number. After a spray record is saved, the system shows which records are pending submission to your county CAC and displays the filing deadline based on your county's requirements. For expedited counties, this deadline appears prominently to alert you to same-day or next-day action. The one-click export generates the county-formatted PUR document for electronic or physical submission.

What is California DPR Restricted Use Pesticide Records for Vineyards?

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Sources

California Department of Pesticide Regulation (CDPR)
UC Cooperative Extension Viticulture
Wine Institute
American Vineyard Foundation
American Society for Enology and Viticulture (ASEV)

Get Started with VitiScribe

California RUP compliance is unforgiving -- missing the license number or filing after the 24-hour deadline generates citations that compound quickly. VitiScribe's RUP workflow flags restricted-use products at the point of entry, requires the applicator license number before the record can be saved, and generates county-formatted PUR documents ready for same-day submission. Try VitiScribe free and log your first RUP application with the compliance safeguards built in from the start.