Prohibited Materials List 2025
Information obtained from the Department of Pesticide Regulation sources based on flagged materials registered for use on grapes.
Due to the fluctuating registrations of many materials, trade names are not listed. It is the responsibility of the applicant to list trade names and active ingredients on documentation.
The active ingredients on this list cannot be used on certified acres between December 1, 2024 and November 30, 2025. See Standard 9.1.1.
| Active Ingredient | Cholinesterase Inhibiting | Groundwater Protection | Toxic Air Contaminant | CA DPR Restricted | Federal DPR Restricted |
|---|---|---|---|---|---|
| 2,4-D, Dimethylamine Salt | ✕ | ✕ | |||
| 4-Aminopyridine | ✕ | ✕ | |||
| Abamectin | ✕ | ||||
| Acephate | ✕ | ||||
| Aluminum Phosphide | ✕ | ✕ | ✕ | ||
| Bentazon, Sodium Salt | ✕ | ||||
| Beta-Cyfluthrin | ✕ | ||||
| Bifenthrin | ✕ | ✕ | |||
| Captan | ✕ | ||||
| Carbaryl | ✕ | ✕ | ✕ | ||
| Chloropicrin | ✕ | ✕ | ✕ | ||
| Chlorpyrifos | ✕ | ✕ | ✕ | ✕ | |
| Cyfluthrin | ✕ | ||||
| Diazinon | ✕ | ✕ | |||
| Dimethoate | ✕ | ||||
| Diphacinone | ✕ | ||||
| Diuron | ✕ | ✕ | |||
| Ethephon | ✕ | ||||
| Fenbutatin-Oxide | ✕ | ||||
| Fenpropathrin | ✕ | ||||
| Hydrogen Cyanamide | ✕ | ||||
| Magnesium Phosphide | ✕ | ✕ | ✕ | ||
| Malathion | ✕ | ||||
| Mancozeb | ✕ | ||||
| Meta-Cresol | ✕ | ||||
| Methiocarb | ✕ | ✕ | |||
| Methomyl | ✕ | ✕ | ✕ | ||
| Methyl Bromide | ✕ | ✕ | ✕ | ||
| Naled | ✕ | ✕ | |||
| Norflurazon | ✕ | ||||
| Oxydemeton-Methyl | ✕ | ✕ | ✕ | ||
| Paraquat Dichloride | ✕ | ✕ | |||
| Phosmet | ✕ | ||||
| Potassium N-Methyldithiocarbamate | ✕ | ✕ | ✕ | ||
| Propargite | ✕ | ||||
| Propylene Oxide | ✕ | ✕ | |||
| Propyzamide | ✕ | ||||
| (S)-Cypermethrin | ✕ | ||||
| Simazine | ✕ | ✕ | |||
| Sulfur Dioxide | ✕ | ||||
| Sulfuryl Fluoride | ✕ | ✕ | ✕ | ||
| Trifluralin | ✕ | ||||
| Zeta-Cypermethrin | ✕ | ||||
| Zinc Phosphide | ✕ | ✕ | ✕ |