PAN Pesticides Database - California Pesticide Use

Pesticide Use in San Luis Obispo in 2009, Central 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 San Luis Obispo

Agricultural Commissioner Contact Information
Click below for detailed map of
San Luis Obispo
Robert F. Lilley
2156 Sierra Way, Ste A
San Luis Obispo, CA 93401-4556
Phone:805-781-5910
Fax: 805-781-1035
Email: Agcommslo@co.slo.ca.us
Web: http://www.sloag.org/

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

Top 50 Pesticides Used on All Sites in San Luis Obispo 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 2,191,330 1.48 127,241 1,416,900
Uses:
Sulfur (560)
Inorganic Not Listed 481,194 4.52 28,468 106,431
Uses: Fungicide, Insecticide
Metam-sodium (616)
Dithiocarbamate Yes 350,383 269.2 1,581 1,301
Uses: Fumigant, Herbicide, Fungicide, Microbiocide, Algaecide
Chloropicrin (136)
Inorganic Yes 282,818 121.3 2,756 2,330
Uses: Fumigant, Nematicide
1,3-Dichloropropene (573)
Halogenated organic Yes 194,224 113.9 2,309 1,706
Uses: Fumigant, Nematicide
Methyl bromide (385)
Halogenated organic Yes 162,378 155.6 1,113 1,043
Uses: Fumigant, Insecticide, Herbicide, Nematicide
Petroleum distillates, refined (2106)
Petroleum derivative Not Listed 64,012 4.04 9,302 15,841
Uses: Insecticide
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 59,880 1.05 31,454 36,827
Uses: Herbicide
Lime-sulfur (358)
Inorganic Not Listed 48,828 31.4 1,006 1,554
Uses: Insecticide, Fungicide
Malathion (367)
Organophosphorus Yes 40,482 1.71 11,674 23,683
Uses: Insecticide
Mineral oil (401, 2687, 473)
Petroleum derivative Yes 38,907 1.55 7,294 24,582
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
Petroleum oil, unclassified (765)
Petroleum derivative Not Listed 32,068 19.1 1,336 1,634
Uses: Insecticide, Herbicide, Fungicide, Adjuvant
Captan (104)
Thiophthalimide Yes 31,569 2.05 2,157 15,409
Uses: Fungicide
Calcium hypochlorite (326)
Inorganic Yes 26,225 3.20 395.0 6,945
Uses: Algaecide, Water Treatment
Sulfuryl fluoride (618)
Inorganic Yes 24,960 - - -
Uses: Fumigant
Maneb (369)
Dithiocarbamate Yes 15,277 1.41 7,630 10,768
Uses: Fungicide
Oxyfluorfen (1973)
Diphenyl ether Not Listed 14,202 0.48 29,599 27,603
Uses: Herbicide
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 10,464 1.40 9,416 7,351
Uses: Herbicide
Bifenthrin (2300)
Pyrethroid Yes 10,460 0.13 2,886 4,287
Uses: Insecticide
Glufosinate-ammonium (3946)
Unclassified Not Listed 9,598 0.46 19,166 20,776
Uses: Herbicide
Copper hydroxide (151)
Inorganic-Copper Not Listed 9,582 0.56 16,762 16,737
Uses: Fungicide, Microbiocide, Nematicide
Chlorpyrifos (253)
Organophosphorus Yes 8,553 1.36 7,278 6,275
Uses: Insecticide, Nematicide
Thiram (589)
Dithiocarbamate Yes 8,421 2.23 1,278 3,776
Uses: Fungicide
Copper sulfate (pentahydrate) (161)
Inorganic-Copper Not Listed 8,167 8.99 111.3 906.3
Uses: Algaecide, Fungicide, Insecticide, Water Treatment, Molluscicide
Potassium bicarbonate (5037)
Inorganic Not Listed 8,059 2.32 2,874 3,465
Uses: Fungicide
Neem oil (3979)
Botanical Not Listed 8,007 1.85 3,534 4,316
Uses: Insecticide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 7,753 0.10 38,759 71,687
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
Propamocarb hydrochloride (4022)
Other Carbamate Not Listed 5,681 1.09 3,600 5,189
Uses: Fungicide
Oryzalin (1868)
2,6-Dinitroaniline Yes 5,237 1.80 5,867 2,632
Uses: Herbicide
Metam potassium (970)
Dithiocarbamate Yes 5,150 143.1 180.0 36.0
Uses: Fumigant, Fungicide, Microbiocide, Algaecide, Nematicide
Methyl soyate (3519)
Fatty acid ester Not Listed 5,014 0.43 7,244 11,641
Uses: Adjuvant
2,4-D, dimethylamine salt (806)
Chlorophenoxy acid or ester Yes 4,943 0.58 10,560 8,021
Uses: Herbicide
Potassium phosphite (5766)
Inorganic Not Listed 4,920 3.05 1,108 1,607
Uses: Fungicide
MCIAL code 401 (2045)
Petroleum derivative Not Listed 4,822 0.73 6,006 6,276
Uses: Insecticide, Adjuvant
Alpha-(p-(1,1,3,3-tetramethyl butyl) phenyl)-omega-hydroxy poly (1932)
Polyalkyloxy Compound Not Listed 4,753 0.15 25,536 32,009
Uses: Adjuvant
Naled (418)
Organophosphorus Yes 4,592 0.85 2,400 5,383
Uses: Insecticide
Imidacloprid (3849)
Neonicotinoid Not Listed 4,590 0.13 37,359 33,983
Uses: Insecticide
DCPA (179)
Alkyl Phthalate Yes 4,255 3.75 2,286 1,134
Uses: Herbicide
Chlorothalonil (677)
Substituted Benzene Yes 4,235 1.27 1,987 3,077
Uses: Fungicide
Dimethyl poly siloxane (1861)
Silicone Not Listed 4,158 0.11 18,192 38,666
Uses: Insecticide, Adjuvant
Propyzamide (694)
Amide Yes 4,051 1.03 5,560 3,926
Uses: Herbicide
Boscalid (5790)
Anilide Not Listed 4,045 0.30 12,245 13,348
Uses: Fungicide
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 3,929 1.70 3,553 1,880
Uses: Herbicide
Cyprodinil (4000)
Pyrimidine Not Listed 3,919 0.39 8,453 9,990
Uses: Fungicide
Paraquat dichloride (1601)
Bipyridylium Yes 3,788 0.97 4,036 3,877
Uses: Herbicide
Fenhexamid (4032)
Anilide Not Listed 3,701 0.52 4,137 7,074
Uses: Fungicide
Bensulide (70)
Organophosphorus Yes 3,695 3.12 2,983 1,185
Uses: Herbicide
Simazine (531)
Triazine Yes 3,504 1.20 4,258 2,761
Uses: Herbicide
Alpha-pinene polymer (3996)
Polymer, Polymer Not Listed 3,487 0.26 2,129 13,375
Uses: Insecticide
Oxydemeton-methyl (382)
Organophosphorus Yes 3,400 0.76 3,899 4,395
Uses: Insecticide

Top 50 Crops and Sites for for All Chemicals use in San Luis Obispo 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)
2,191,330 1.48 127,241 1,416,900 81,564
Strawberries (1016)
701,847 3.02 3,808 232,715 3,940
Wine Grapes (29143)
477,101 0.80 32,424 598,188 12,866
Carrots (29111)
333,884 15.6 3,356 21,435 186
Table and Raisin Grapes (29141)
130,741 4.34 1,030 30,138 609
Avocado (28000)
46,398 1.56 3,602 29,766 788
Onions (14011)
46,375 2.16 993.5 21,434 272
Head Lettuce (13045)
43,200 0.40 4,934 109,171 8,703
Structural Pest Control (10)
37,354 - - - 3,663
Uncultivated Agricultural Area (66000)
34,564 4.28 2,039 8,076 92
Peas (29127)
33,298 11.9 846.8 2,796 336
Unknown (-1)
29,919 2.23 883.5 13,406 285
Broccoli (13005)
29,329 0.28 9,736 106,400 7,342
Lemons (2004)
28,835 4.85 1,152 5,951 340
Raspberries (1006)
24,450 10.9 196.0 2,244 175
Right of Way (40)
21,322 - - - 941
Landscape (30)
19,854 0.50 740.1 86.0 3,273
Greenhouse Flowers (151)
14,343 1.52 43.8 9,357 4,873
Outdoor Flower Nursery (152)
11,812 2.66 64.5 4,439 1,114
Cabbage (13007)
11,666 1.44 1,453 8,083 1,091
Leaf Lettuce (13031)
8,963 0.54 3,325 16,569 3,750
Chinese Cabbage (13010)
8,535 0.54 2,283 15,889 3,609
Celery (29113)
8,437 0.35 1,285 24,370 2,619
Aquatic Area (65000)
8,233 9.93 - 829.0 12
Greenhouse Plants (153)
8,185 0.43 54.2 18,018 5,766
Cauliflower (13008)
6,195 0.51 2,082 12,146 1,048
Melons (29122)
5,366 3.63 353.0 1,476 18
Potatoes (14013)
4,367 0.44 585.0 9,840 75
Alfalfa for Forage (23001)
4,285 0.37 2,540 11,708 146
Irrigation Systems (65021)
3,999 - - - 9
Forage Grasses (22000)
3,797 0.23 8,129 16,281 287
Oranges (2006)
3,545 5.60 216.0 633.0 62
Bell Peppers (11003)
3,009 0.60 1,312 5,020 427
Squash (10012)
2,929 2.99 330.1 980.8 92
Tomatoes (11005)
2,846 2.47 266.9 1,153 70
Succulent Beans (15003)
2,640 1.24 480.9 2,129 61
Outdoor Propagation Nursery (156)
2,269 0.66 57.8 2,996 3,512
Citrus (2000)
2,140 9.62 66.8 222.4 45
Barley (29103)
1,884 0.10 10,159 19,599 111
Rangeland (28045)
1,880 0.09 12,098 20,695 74
Other Fumigation (91)
1,875 - - - 46
Oats (29125)
1,784 0.21 3,734 8,342 145
Greenhouse Propagation (155)
1,745 0.59 53.4 2,207 3,278
Vertebrate Pest Control (80)
1,740 - - - 749
Bok Choy (13502)
1,729 0.49 1,308 3,533 1,420
Apples (4001)
1,345 1.57 202.6 857.5 94
Spinach (13024)
1,140 0.54 1,514 2,117 786
Olives (28014)
1,075 0.75 510.0 1,431 82
Summer Squash (10013)
916.8 1.71 240.1 535.4 53
Cilanto (13501)
812.6 2.93 371.0 277.6 87
 
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.

To print this page, choose Print. To export this data, choose Save As 'HTML Source' and open it in Excel or equivalent program.

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.