PAN Pesticides Database - California Pesticide Use

Pesticide Use in Napa in 2009, North Coast Region

Note: See Working with the Information on this Page section below for important notes about this data.

Basic Information about this county including contact information for the California County Agricultural Commissioner in this county.
Top 50 pesticides used in this county or region in 2009, with information on the identity, use type and toxicity of each pesticide, as well as gross pounds used, application rate, acres planted, and number of applications.
Top crops and sites for chemical use in this county or region in 2009, with information on gross pounds used, application rate, acres planted, and number of applications.

Basic County Information for Napa

Agricultural Commissioner Contact Information
Click below for detailed map of
Napa
David R. Whitmer
1710 Soscol Ave., Suite 3
Napa, CA 94559-1315
Phone:707-253-4357
Fax: 707-253-4881
Email: NapaAg@cdfa.ca.gov
Web: http://www.co.napa.ca.us

For more detailed county agricultural contact information, see the CDFA County Ag Liaison Office.

Top 50 Pesticides Used on All Sites in Napa in 2009


Totals for 2003 and later may be under-reported due to omission of adjuvants in DPR's data since that time.
Chemical Name
(CA Chem Code)
Chemical Class PAN Bad Actor Gross
Pounds
Application Rate
Pounds per acre treated
Acres Planted
where all or part
has been sprayed
Acres Treated
All Chemicals (00)
Not Listed 1,526,930 1.76 52,821 835,658
Uses:
Sulfur (560)
Inorganic Not Listed 1,050,420 7.41 42,484 141,836
Uses: Fungicide, Insecticide
Petroleum distillates, refined (2106)
Petroleum derivative Not Listed 111,014 5.26 16,484 21,105
Uses: Insecticide
Mineral oil (401, 2687, 473)
Petroleum derivative Yes 78,716 5.66 9,113 13,511
Note! Data for Mineral oil summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Insecticide, Adjuvant
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 31,326 1.04 25,149 23,807
Uses: Herbicide
Lime-sulfur (358)
Inorganic Not Listed 21,403 22.0 1,533 971.3
Uses: Insecticide, Fungicide
Sulfur dioxide (561)
Inorganic Yes 19,134 - - -
Uses: Dessicant, Preservative
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 17,664 1.50 16,515 11,741
Uses: Herbicide
Copper hydroxide (151)
Inorganic-Copper Not Listed 14,523 1.12 9,790 12,905
Uses: Fungicide, Microbiocide, Nematicide
Copper oxide (ous) (175)
Inorganic-Copper Not Listed 13,366 0.96 13,914 13,878
Uses: Fungicide, Insecticide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 12,695 0.16 27,366 75,032
Note! Data for Nonyl phenoxy poly (ethylene oxy) ethanol summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Adjuvant, Plant Growth Regulator, Adjuvant, Soap/Surfactant
Potassium bicarbonate (5037)
Inorganic Not Listed 12,673 3.19 5,543 3,979
Uses: Fungicide
Sodium carbonate peroxyhydrate (5785)
Not Listed 12,093 37.5 - 34.0
Uses:
Petroleum oil, unclassified (765)
Petroleum derivative Not Listed 11,873 6.47 1,989 1,820
Uses: Insecticide, Herbicide, Fungicide, Adjuvant
Ammonium sulfate (1363)
Inorganic Not Listed 9,815 0.96 12,636 10,159
Uses: Herbicide, pH Adjustment
1,3-Dichloropropene (573)
Halogenated organic Yes 8,152 331.8 27.0 24.6
Uses: Fumigant, Nematicide
Oxyfluorfen (1973)
Diphenyl ether Not Listed 6,480 0.83 10,820 7,599
Uses: Herbicide
Myrothecium verrucaria, dried fermentation solids & solubles (3966)
Microbial Not Listed 5,761 5.04 1,648 1,144
Uses: Insecticide, Nematicide
Boscalid (5790)
Anilide Not Listed 4,105 0.22 19,782 18,954
Uses: Fungicide
Mancozeb (211)
Dithiocarbamate, Inorganic-Zinc Yes 3,957 1.50 1,514 1,544
Uses: Fungicide
3-(3-hydroxypropyl)-hepta-methyl trisiloxane, ethoxylated, acetate (2610)
Silicone Not Listed 3,718 0.17 12,102 21,343
Uses: Adjuvant
Methyl bromide (385)
Halogenated organic Yes 3,411 391.4 9.00 8.60
Uses: Fumigant, Insecticide, Herbicide, Nematicide
Glufosinate-ammonium (3946)
Unclassified Not Listed 3,214 0.52 8,717 6,212
Uses: Herbicide
QST 713 strain of dried Bacillus subtilis (5447)
Microbial Not Listed 2,766 0.36 6,146 7,614
Uses: Fungicide
Triflumizole (2260)
Azole Not Listed 2,501 0.23 10,505 11,084
Uses: Fungicide
Diuron (231)
Urea Yes 2,442 0.70 669.0 59.2
Uses: Herbicide
Oryzalin (1868)
2,6-Dinitroaniline Yes 2,349 1.57 4,164 1,271
Uses: Herbicide
Metam-sodium (616)
Dithiocarbamate Yes 2,305 - - -
Uses: Fumigant, Herbicide, Fungicide, Microbiocide, Algaecide
Simazine (531)
Triazine Yes 2,260 1.89 2,492 1,196
Uses: Herbicide
Tebuconazole (3850)
Azole Not Listed 2,239 0.12 16,651 18,909
Uses: Fungicide
Pyraclostrobin (5759)
Strobin Not Listed 2,093 0.11 19,782 18,954
Uses: Fungicide
Buprofezin (3947)
Unclassified Not Listed 2,059 0.52 5,869 3,941
Uses: Insect Growth Regulator
Poly (methylene para nonylphenoxy) - poly (oxypropylene) propanol (1788)
Polyalkyloxy Compound Not Listed 2,059 0.10 8,712 20,267
Uses: Adjuvant
Cyprodinil (4000)
Pyrimidine Not Listed 2,027 0.49 7,522 4,105
Uses: Fungicide
Fenhexamid (4032)
Anilide Not Listed 1,978 0.58 6,796 3,433
Uses: Fungicide
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 1,977 1.85 1,092 749.9
Uses: Herbicide
Alcohol ethoxylate (C9-C11, 6 EO) (2700)
Polyalkyloxy Compound Not Listed 1,922 0.16 9,738 12,020
Uses: Adjuvant
Potassium phosphite (5766)
Inorganic Not Listed 1,906 - - -
Uses: Fungicide
Quinoxyfen (5787)
Quinoline Not Listed 1,862 0.10 19,420 19,297
Uses: Fungicide
Flumioxazin (5802)
Unclassified Not Listed 1,841 0.18 16,309 9,933
Uses: Herbicide
Chlorpyrifos (253)
Organophosphorus Yes 1,841 1.91 1,262 962.7
Uses: Insecticide, Nematicide
Sodium tetrathiocarbonate (2273)
Inorganic Yes 1,691 38.5 205.0 43.9
Uses: Fumigant, Fungicide, Nematicide
Trifloxystrobin (5321)
Strobin Not Listed 1,334 0.08 15,403 15,753
Uses: Fungicide
Kaolin (2629)
Inorganic Not Listed 1,225 17.7 460.0 69.3
Uses: Insecticide, Adjuvant, Fungicide, Microbiocide
Myclobutanil (2245)
Azole Yes 1,174 0.10 11,728 11,684
Uses: Fungicide
Bacillus pumilus strain QST 2808 (5770)
Microbial Not Listed 1,092 0.10 5,534 10,478
Uses: Plant Growth Regulator
Allyl oxy poly ethylene glycol monoallyl acetate (2376)
Polyalkyloxy Compound Not Listed 1,061 0.05 11,924 20,550
Uses: Adjuvant
Sulfuryl fluoride (618)
Inorganic Yes 970.6 1.39 36.0 21.5
Uses: Fumigant
Malathion (367)
Organophosphorus Yes 965.8 1.59 2,138 588.2
Uses: Insecticide
Potash soap (1596)
Soap Not Listed 951.6 6.15 294.0 152.6
Uses: Herbicide, Insecticide, Adjuvant

Top 50 Crops and Sites for for All Chemicals use in Napa in 2009

Crop or Site
(Commodity Code)
Gross
Pounds
Application Rate
pounds per acre treated
Acres Planted
where all or part
has been sprayed
Acres Treated Application
Count
All Sites (00)
1,526,930 1.76 52,821 835,658 42,492
Wine Grapes (29143)
1,455,190 1.75 49,105 831,911 36,313
Other Fumigation (91)
19,174 - - - 634
Aquatic Area (65000)
12,555 2.80 60.0 533.0 77
Soil Preplant (40008)
11,518 347.3 36.0 33.2 4
Landscape (30)
10,859 3.10 535.0 8.00 1,612
Public Health Pest Control (50)
7,586 - - - 153
Right of Way (40)
5,982 - - - 177
Structural Pest Control (10)
2,445 - - - 2,965
Pasture (28035)
555.9 0.28 920.0 2,020 13
Olives (28014)
460.3 1.10 206.8 357.5 233
Aquatic Industrial Uses (65503)
172.8 5.80 - 3.00 26
Regulatory (100)
111.8 2.52 - 27.0 20
Peaches (5004)
79.7 1.15 2.00 64.0 23
Uncultivated Agricultural Area (66000)
48.6 0.25 1,511 198.0 37
Outdoor Container Nursery (154)
35.4 1.20 6.75 29.5 37
Greenhouse Plants (153)
32.0 0.93 2.70 34.4 96
Uncultivated Non-Agricultural Area (67000)
30.0 0.07 410.0 410.0 1
Irrigation Systems (65021)
24.4 2.91 - 4.00 4
Oats (29125)
19.2 0.96 20.0 20.0 3
Nectarines (5003)
14.1 - - - 7
Vertebrate Pest Control (80)
13.3 - - - 23
Apricots (5001)
10.1 6.55 - 1.20 18
Outdoor Flower Nursery (152)
3.75 3.95 1.00 0.95 4
Strawberries (1016)
2.59 1.29 4.50 2.00 1
Commodity Fumigation (90)
1.86 - - - 2
Fruit, Stone (5000)
1.43 0.46 - 1.90 5
Plums (5005)
0.93 - - - 3
Cherries (5002)
0.72 - - - 1
 
Working with the Information on this Page

* Complete 2001 data for Kern county was never submitted by the Kern County Agricultural Commissioners office. This missing data includes approximately 32,000 records totaling roughly 10 million pounds. An omission of this scale will significantly impact statewide trends.

** The 2005 data for Ventura county is incomplete because not all of the data was available at the time of DPR's release. Missing data includes mostly applications made in November and December. An estimate based on reported use in Ventura County during November and December from 2002 to 2004 suggests that the 2005 total pounds is underreported by approximately 500,000 pounds. The active ingredients most affected are captan and petroleum oil. See the DPR's 2005 PUR report for additional details.

NOTE! See methodology and documentation for California Pesticide Use Reporting for important qualifications on these numbers.

Click on the commodities name links for special caveats on the data for each commodity. For more detailed use information, including data for other years, search our California Pesticide Use database. Original source for all pesticide use data is the California Pesticide Use Report (PUR) dataset, collected and managed by the California Department of Pesticide Regulation. Significant processing of the original dataset is required to generate the summary data presented here; see documentation for a full discussion of data handling.

NOTE! Comments on the accuracy of Acres Planted reflect PAN's analysis of acreage data from the California Agricultural Statistics Service (CASS) and Department of Pesticide Regulation Pesticide Use Reporting data. The method used to assess acreage accuracy is described in the documentation. Accuracy was evaluated for aggregate, statewide California acreage, but not for smaller regions (e.g., counties). See CASS acreage estimates for additional information.

Click on underlined terms for definitions or go to the Pesticide Tutorial overview page.

Any underlined term with a book icon has additional information.

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Definitions
  • Acres Planted is the planted acreage of the crop in the selected region where the selected chemical was applied. This figure may not be the total acreage of the selected crop. To obtain the total planted acreage for a crop or county, see the crop and county pages available from the Pesticide Use Search Page. See documentation for important distinctions between acres treated and acres planted.
  • Acres Treated is the acreage of the crop actually treated with the pesticide. Gross Pounds applied divided by Acres Treated is the application rate of the pesticide. The difference between Acres Planted and Acres Treated is best explained through an example:If a farmer has a 100-acre field and sprays 50 acres, then the Acres Planted will be 100 and the Acres Treated will be 50. If a farmer sprays 50 of their 100 acres three times, then the Acres Planted will remain at 100 acres, but now the value of Acres Treated will be 150. This figure may not be the total acreage of the selected crop. See documentation for further distinctions between acres treated and acres planted.
  • Application Count indicates the number of times this chemical was applied.
  • Application Rate indicates the total pounds applied to acreage divided by the total treated acres. Only pounds applied to acreage are used to calculate the application rate. This excludes pesticides used to fumigate stored commodities or other non-cropland applications. See documentation for important distinctions between acres treated and acres planted.
  • Chemical Class indicates the chemical classification of this chemical.
  • Chemical Code is the California Department of Pesticide Regulation code number assigned as an identifier for each chemical.
  • Chemical Uses indicates the major uses for this chemical, with the most common use listed first.
  • County Code is a code number that various California State agencies use to identify each California county. There are 58 total counties.
  • Field Count is the number of fields where this chemical was applied.
  • Gross Pounds indicates the total pounds used, including both pounds used on acreage and pounds used in other applications such as commodity fumigation.
  • PAN Bad Actor indicates whether this chemical belongs to the group of most toxic pesticides or not. See link for a full definition of this term.