PAN Pesticides Database - California Pesticide Use

Pesticide Use in San Mateo in 2012, Bay Area 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 2012, 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 2012, with information on gross pounds used, application rate, acres planted, and number of applications.

Basic County Information for San Mateo

Agricultural Commissioner Contact Information
Click below for detailed map of
San Mateo
Gail M. Raabe
728 Heller Street
Redwood City, CA 94064
send mail to:
P.O. Box 999
Redwood City, CA 94064-0999
Phone:650-363-4700
Fax: 650-367-0130
Email: SMateoAg@cdfa.ca.gov
Web: http://www.co.sanmateo.ca.us/agriculture/index.htm

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

Top 50 Pesticides Used on All Sites in San Mateo in 2012


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 (NA, 00)
Not Listed 212,230 2.38 5,889 23,125
Uses:
Sulfuryl fluoride (618)
Inorganic Yes 45,789 - - -
Uses: Fumigant
1,3-Dichloropropene (573)
Halogenated organic Yes 23,000 120.1 371.5 191.5
Uses: Fumigant, Nematicide
Mono- and di- potassium salts of phosphorous acid (5766)
Inorganic Not Listed 16,470 1.31 285.5 270.8
Uses: Fungicide, Microbiocide
Glutaraldehyde (139)
Not Listed 15,063 - - -
Uses: Microbiocide, Fungicide
Mineral oil, refined (3846, 2601, 2106, 2768, 1641)
Petroleum derivative-Saturated Not Listed 13,759 9.24 23.5 45.6
Note! Data for Mineral oil, refined summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Herbicide, Plant Growth Regulator, Insecticide, Adjuvant, Solvent
Metam-sodium (616)
Dithiocarbamate-MITC Yes 12,666 79.0 261.0 156.5
Uses: Fumigant, Herbicide, Fungicide, Microbiocide, Algaecide
Mineral oil, unrefined (401, 2045, 765, 763, 2687, 473)
Petroleum derivative-Aromatic Yes 7,155 7.29 41.0 151.9
Note! Data for Mineral oil, unrefined 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, Herbicide, Fungicide
Disodium octaborate tetrahydrate (1800)
Inorganic Not Listed 6,863 - - -
Uses: Insecticide, Herbicide
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 4,620 2.03 189.5 78.3
Uses: Herbicide
Chlorothalonil (677)
Substituted Benzene Yes 4,385 1.58 802.5 870.6
Uses: Fungicide
Calcium hypochlorite (326)
Inorganic Yes 4,305 - - -
Uses: Algaecide, Water Treatment
Limonene (979, 2531)
Oil - essential, Botanical Not Listed 3,596 - - -
Note! Data for Limonene summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Insect Repellent, Insecticide, Dog and Cat Repellent
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 3,448 2.09 209.9 84.1
Uses: Herbicide
Metam potassium (970)
Dithiocarbamate-MITC Yes 3,391 123.3 21.5 27.5
Uses: Fumigant, Fungicide, Microbiocide, Algaecide, Nematicide
PCNB (464)
Substituted Benzene Not Listed 3,267 21.4 245.0 143.5
Uses: Fungicide, Nematicide, Algaecide
Permethrin (2008)
Pyrethroid Yes 2,852 0.38 47.5 28.2
Uses: Insecticide
Diquat dibromide (229)
Bipyridylium Yes 2,591 6.73 40.5 110.2
Uses: Herbicide, Dessicant
Sodium bromide (1103)
Inorganic Not Listed 2,008 - - -
Uses: Molluscicide, Herbicide, Insecticide, Microbiocide
Sodium dichloro-s-triazinetrione dihydrate (1818)
Triazinetrione Yes 1,902 - - -
Uses: Microbiocide, Water Treatment
Sodium hypochlorite (539)
Inorganic Yes 1,715 1.27 - 112.7
Uses: Microbiocide, Water Treatment, Nematicide
Trichloro-s-triazinetrione (407)
Triazinetrione Yes 1,676 - - -
Uses: Microbiocide, Water Treatment
Fosetyl-Al (2210)
Unclassified Yes 1,615 5.84 268.3 64.9
Uses: Fungicide
Boric acid (769)
Inorganic Not Listed 1,473 - - -
Uses: Insecticide
Sulfur (560)
Inorganic Not Listed 1,454 3.99 417.2 362.2
Uses: Fungicide, Insecticide
Daminozide (7)
Unclassified Yes 1,355 11.3 129.5 15.2
Uses: Plant Growth Regulator
Glyphosate, dimethylammonium salt (5972)
Phosphonoglycine Not Listed 1,314 - - -
Uses: Herbicide
Mancozeb (211)
Dithiocarbamate-ETU, Inorganic-Zinc Yes 1,244 2.24 150.3 209.1
Uses: Fungicide
Sodium carbonate peroxyhydrate (5785)
Inorganic Not Listed 1,173 71.7 - 16.0
Uses:
2,4-D, dimethylamine salt (806)
Chlorophenoxy acid or ester Yes 1,166 1.35 3,900 331.0
Uses: Herbicide
Triclopyr, butoxyethyl ester (2170)
Chloropyridinyl, Glycol Ether Not Listed 1,113 0.92 - 4.10
Uses: Herbicide
Thiophanate-methyl (1696)
Benzimidazole precursor Yes 1,101 2.41 203.5 118.2
Uses: Fungicide
Dazomet (233)
Unclassified Not Listed 792.0 - - -
Uses: Fumigant, Fungicide, Nematicide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 627.4 0.07 452.5 550.4
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, Soap/Surfactant
Cypermethrin (2171)
Pyrethroid Not Listed 555.9 - - -
Uses: Insecticide
Imazapyr, isopropylamine salt (2257)
Imidazolinone Not Listed 443.7 1.41 - 100.0
Uses: Herbicide
Imidacloprid (3849)
Neonicotinoid Not Listed 418.9 0.04 637.0 1,029
Uses: Insecticide
Metaldehyde (379)
Aldehyde Not Listed 405.5 0.92 298.8 167.0
Uses: Molluscicide
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 404.2 1.16 63.5 8.98
Uses: Herbicide
Ethephon (1626)
Organophosphorus Yes 383.0 1.62 255.5 43.4
Uses: Plant Growth Regulator
Bromacil (83)
Uracil Yes 366.6 - - -
Uses: Herbicide
Potassium bicarbonate (5037)
Inorganic Not Listed 354.1 3.08 70.7 114.9
Uses: Fungicide
Bacillus thuringiensis, subsp. Kurstaki, strain ABTS-351, fermentation solids and solubles (5829)
Microbial Not Listed 346.3 1.54 63.7 94.7
Uses: Insecticide
Fipronil (3995)
Pyrazole Not Listed 335.4 - - -
Uses: Insecticide
Bacillus sphaericus, serotype H-5A5B, strain 2362 (2409)
Microbial Not Listed 335.3 1.50 - 108.0
Uses: Insecticide
Copper ammonium acetate (6103)
Inorganic-Copper Not Listed 335.2 - - -
Uses: Fungicide
Iprodione (2081)
Dicarboximide Yes 334.7 0.95 133.3 49.4
Uses: Fungicide
MCPP, dimethylamine salt (1016)
Chlorophenoxy acid or ester Not Listed 322.4 - - -
Uses: Herbicide
Methiocarb (375)
N-Methyl Carbamate Yes 318.8 3.98 130.5 55.4
Uses: Insecticide, Molluscicide
Chlorpyrifos (253)
Organophosphorus Yes 315.6 0.68 358.5 408.8
Uses: Insecticide, Nematicide

Top 50 Crops and Sites for for All Chemicals use in San Mateo in 2012

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)
212,230 2.38 5,889 23,125 20,182
Structural Pest Control (10)
59,275 - - - 8,211
Landscape (30)
49,872 - - - 4,320
Brussel Sprouts (13006)
43,628 3.23 685.0 13,507 510
Aquatic Industrial Uses (65503)
19,174 1.27 - 112.7 81
Public Health Pest Control (50)
13,958 - - - 173
Right of Way (40)
8,024 - - - 427
Greenhouse Plants (153)
4,644 0.99 27.5 1,347 4,018
Outdoor Container Nursery (154)
2,755 2.17 144.5 876.8 894
Aquatic Area (65000)
2,311 5.85 - 395.0 14
Wine Grapes (29143)
1,783 0.69 110.8 2,569 352
Irrigation Systems (65021)
1,311 - - - 8
Soil Preplant (40008)
945.1 118.1 70.0 8.00 1
Regulatory (100)
720.8 - - - 19
Other Fumigation (91)
497.8 - - - 2
Greenhouse Flowers (151)
418.1 1.17 8.00 189.1 420
Pasture (28035)
380.0 1.51 1,260 252.0 10
Peas (29127)
369.3 2.95 67.0 125.0 20
Uncultivated Agricultural Area (66000)
342.9 0.37 235.0 935.2 78
Ornamental Turf (33008)
339.2 2.00 216.0 141.6 32
Outdoor Flower Nursery (152)
315.3 0.56 187.1 392.0 145
Bean, Broad (Fava, Horse Bean) (28059)
306.1 0.42 99.9 730.7 107
Pears (4003)
240.6 3.76 4.00 64.0 16
Apples (4001)
172.8 3.60 3.00 48.0 16
Table and Raisin Grapes (29141)
91.7 0.44 10.0 210.0 30
Peaches (5004)
67.6 9.65 1.00 7.00 7
Beans (28001)
59.1 0.27 77.0 220.0 35
Artichokes (13018)
48.1 0.12 72.0 404.0 31
Leeks (14010)
32.3 0.29 14.1 112.0 20
Vertebrate Pest Control (80)
29.6 - - - 28
Rangeland (28045)
21.4 0.53 2,500 40.0 2
Apricots (5001)
20.6 4.58 1.50 4.50 3
Oats for Forage (22006)
19.2 0.71 30.0 27.0 1
Uncultivated Non-Agricultural Area (67000)
15.1 0.58 32.0 26.2 34
Succulent Beans (15003)
14.0 0.05 10.0 309.0 18
Greenhouse Propagation (155)
8.82 - - - 3
Swiss Chard (13025)
8.13 0.33 4.83 24.0 19
Pumpkins (10011)
5.44 0.12 11.0 44.0 4
Celery (29113)
4.66 1.17 2.00 3.98 4
Plums (5005)
0.66 - - - 2
Broccoli (13005)
0.32 - 0.50 - 10
Kale (13011)
0.32 - 0.50 - 13
Cabbage (13007)
0.15 - 0.50 - 10
Collards (13009)
0.07 - 0.10 - 5
Radishes (14014)
0.06 - 1.75 - 5
Summer Squash (10013)
0.03 - 0.14 - 2
Beets (29109)
0.02 - 0.50 - 4
Carrots (29111)
0.02 - 0.25 - 4
Leaf Lettuce (13031)
0.02 - 0.40 - 3
Basil (8006)
0.02 - 0.28 - 3
 
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.