PAN Pesticides Database - California Pesticide Use

Pesticide Use in Merced in 2009, San Joaquin Valley 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 Merced

Agricultural Commissioner Contact Information
Click below for detailed map of
Merced
David Robinson
2139 Wardrobe Ave.
Merced, CA 95340-6495
Phone:209-385-7431
Fax: 209-725-3536
Email: ag00@co.merced.ca.us
Web: http://www.co.merced.ca.us/ag/index.html

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

Top 50 Pesticides Used on All Sites in Merced 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 5,925,340 1.13 444,608 4,920,240
Uses:
Sulfur (560)
Inorganic Not Listed 1,643,530 14.3 45,067 114,576
Uses: Fungicide, Insecticide
1,3-Dichloropropene (573)
Halogenated organic Yes 698,435 107.5 9,288 6,494
Uses: Fumigant, Nematicide
Metam-sodium (616)
Dithiocarbamate Yes 405,664 246.2 2,280 1,646
Uses: Fumigant, Herbicide, Fungicide, Microbiocide, Algaecide
Petroleum oil, unclassified (765)
Petroleum derivative Not Listed 365,454 8.40 41,959 43,513
Uses: Insecticide, Herbicide, Fungicide, Adjuvant
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 336,949 1.10 159,262 202,539
Uses: Herbicide
Mineral oil (401, 2687, 473)
Petroleum derivative Yes 311,983 6.24 38,533 44,695
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
Metam potassium (970)
Dithiocarbamate Yes 219,734 138.3 2,728 1,589
Uses: Fumigant, Fungicide, Microbiocide, Algaecide, Nematicide
Methyl bromide (385)
Halogenated organic Yes 190,153 43.3 6,132 4,124
Uses: Fumigant, Insecticide, Herbicide, Nematicide
Lime-sulfur (358)
Inorganic Not Listed 138,549 33.9 5,363 4,084
Uses: Insecticide, Fungicide
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 117,626 2.06 65,110 56,857
Uses: Herbicide
Chloropicrin (136)
Inorganic Yes 109,226 90.8 2,139 1,202
Uses: Fumigant, Nematicide
Paraquat dichloride (1601)
Bipyridylium Yes 56,896 0.76 79,310 74,777
Uses: Herbicide
Kaolin (2629)
Inorganic Not Listed 55,730 29.3 2,219 1,899
Uses: Insecticide, Adjuvant, Fungicide, Microbiocide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 52,769 0.14 248,533 360,718
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
Glyphosate (2997)
Phosphonoglycine Not Listed 51,032 1.03 33,915 48,486
Uses: Herbicide
Trifluralin (597)
2,6-Dinitroaniline Not Listed 49,685 1.02 38,214 48,613
Uses: Herbicide
Copper hydroxide (151)
Inorganic-Copper Not Listed 44,546 1.73 26,048 25,701
Uses: Fungicide, Microbiocide, Nematicide
Chlorothalonil (677)
Substituted Benzene Yes 44,153 2.08 21,371 21,159
Uses: Fungicide
Oxyfluorfen (1973)
Diphenyl ether Not Listed 40,462 0.31 107,968 112,410
Uses: Herbicide
Ammonium sulfate (1363)
Inorganic Not Listed 36,581 0.27 87,857 129,486
Uses: Herbicide, pH Adjustment
Chlorpyrifos (253)
Organophosphorus Yes 34,416 0.84 37,378 40,767
Uses: Insecticide, Nematicide
Glufosinate-ammonium (3946)
Unclassified Not Listed 29,794 0.64 39,467 35,203
Uses: Herbicide
2,4-D, dimethylamine salt (806)
Chlorophenoxy acid or ester Yes 28,387 0.74 43,302 37,516
Uses: Herbicide
Diatomaceous earth (195)
Inorganic Not Listed 27,631 - - -
Uses: Insecticide, Molluscicide
Diuron (231)
Urea Yes 26,028 0.45 30,389 33,291
Uses: Herbicide
Metolachlor, (S) (5133)
Chloroacetanilide Yes 25,239 1.12 18,671 22,488
Uses: Herbicide
Ethephon (1626)
Organophosphorus Yes 25,143 0.93 19,466 26,890
Uses: Plant Growth Regulator
Urea dihydrogen sulfate (2270)
Inorganic Not Listed 25,054 1.76 12,942 14,206
Uses: Plant Growth Regulator, Herbicide
MCIAL code 401 (2045)
Petroleum derivative Not Listed 24,847 0.76 27,044 32,114
Uses: Insecticide, Adjuvant
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 24,216 1.06 20,436 21,034
Uses: Herbicide
MCPA, dimethylamine salt (786)
Chlorophenoxy acid or ester Yes 23,173 0.59 39,318 38,121
Uses: Herbicide
Petroleum distillates, refined (2106)
Petroleum derivative Not Listed 21,419 0.76 1,042 1,250
Uses: Insecticide
Malathion (367)
Organophosphorus Yes 21,259 1.02 19,271 20,350
Uses: Insecticide
Sodium hypochlorite (539)
Inorganic Yes 20,788 12.5 - 6.00
Uses: Microbiocide, Water Treatment, Nematicide
Sodium chlorate (536)
Inorganic Not Listed 20,727 5.61 3,997 3,696
Uses: Defoliant, Herbicide, Microbiocide
Oryzalin (1868)
2,6-Dinitroaniline Yes 20,383 1.94 13,280 9,930
Uses: Herbicide
Methyl soyate (3519)
Fatty acid ester Not Listed 19,801 0.26 57,535 73,763
Uses: Adjuvant
Copper sulfate (basic) (162)
Inorganic-Copper Not Listed 18,993 5.82 3,693 3,261
Uses: Fungicide, Algaecide, Molluscicide
Oleic acid, methyl ester (2266)
Fatty acid ester Not Listed 16,761 0.24 34,717 69,449
Uses: Adjuvant
Iprodione (2081)
Dicarboximide Yes 16,517 0.49 37,739 33,859
Uses: Fungicide
Simazine (531)
Triazine Yes 15,110 0.52 25,278 27,555
Uses: Herbicide
p-nonylphenyl polyoxyethylene (4-14 moles)dihydrogen phosphate ester (5016)
Polyalkyloxy Compound Not Listed 14,547 0.26 34,024 54,921
Uses: Adjuvant, Soap/Surfactant
Copper sulfate (pentahydrate) (161)
Inorganic-Copper Not Listed 14,303 12.2 894.5 867.8
Uses: Algaecide, Fungicide, Insecticide, Water Treatment, Molluscicide
Acrolein (3)
Aldehyde Yes 13,330 - - -
Uses: Algaecide, Fumigant
Copper oxide (ous) (175)
Inorganic-Copper Not Listed 12,803 3.18 4,135 4,023
Uses: Fungicide, Insecticide
Propylene oxide (508)
Alcohol/Ether Yes 11,616 - - -
Uses: Fumigant
Diethylene glycol (2334)
Glycol Not Listed 9,882 0.11 59,972 80,678
Uses: Adjuvant, Solvent
Propargite (445)
Unclassified Yes 8,664 1.85 6,380 4,687
Uses: Insecticide
Propanil (503)
Anilide Not Listed 8,431 4.28 1,984 1,969
Uses: Herbicide

Top 50 Crops and Sites for for All Chemicals use in Merced 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)
5,925,340 1.13 444,608 4,920,240 62,889
Tomatoes for Processing (29136)
1,336,480 3.34 25,452 400,176 3,917
Almonds (3001)
1,259,660 0.74 102,558 1,686,980 18,239
Sweet Potatoes (14018)
911,911 72.2 8,643 12,631 422
Wine Grapes (29143)
699,222 2.17 12,824 322,213 2,852
Alfalfa for Forage (23001)
220,355 0.33 78,570 677,569 7,401
Outdoor Propagation Nursery (156)
193,672 21.1 817.2 9,173 223
Tomatoes (11005)
186,331 1.42 7,164 120,082 1,713
Right of Way (40)
176,949 0.26 119.6 601.0 1,780
Cotton (29121)
154,025 0.32 27,821 483,310 5,625
Peaches (5004)
114,169 1.75 4,097 65,159 1,965
Outdoor Container Nursery (154)
81,586 6.52 820.5 12,522 276
Corn for Forage (22005)
72,723 0.22 59,382 333,927 3,990
Pistachios (3011)
67,912 0.40 9,199 169,525 1,040
Public Health Pest Control (50)
62,134 - - - 105
Corn (29119)
51,771 0.82 9,200 62,902 561
Animal Husbandry (61001)
41,677 1.16 - 524.4 307
Walnuts (3009)
40,342 0.61 4,963 66,303 1,253
Prunes (5006)
24,044 1.70 1,920 14,185 62
Rice (28072)
22,147 1.33 2,074 16,712 179
Oats for Forage (22006)
18,039 0.16 30,278 114,543 1,659
Melons (29122)
18,022 0.74 2,124 24,248 273
Ornamental Turf (33008)
17,293 33.1 407.0 523.0 20
Cherries (5002)
13,491 3.51 367.5 3,849 124
Commodity Fumigation (90)
12,787 0.0086 - 1,535 130
Structural Pest Control (10)
12,181 - - - 3,802
Wheat (29139)
11,866 0.19 10,983 61,790 651
Table and Raisin Grapes (29141)
10,904 2.76 374.0 3,949 73
Wheat for Forage (22007)
9,968 0.18 11,493 56,428 612
Onions (14011)
7,946 0.56 489.7 14,092 184
Succulent Beans (15003)
6,644 0.33 2,712 20,203 255
Apricots (5001)
5,190 1.72 278.5 3,022 44
Landscape (30)
4,864 - - - 951
Other Fumigation (91)
4,720 - - - 5
Figs (6005)
4,550 0.50 1,289 9,163 75
Radicchio (13524)
4,386 0.26 705.0 16,893 138
Asparagus (16002)
4,135 0.77 401.0 5,377 32
Aquatic Area (65000)
4,096 6.96 60.0 306.3 19
Barley (29103)
3,910 0.22 3,945 17,664 206
Fruit, Stone (5000)
3,893 9.83 80.0 396.0 49
Cantaloupe (10002)
3,618 0.17 3,306 21,810 267
Oats (29125)
3,219 0.19 3,773 16,618 173
Watermelons (10008)
2,819 0.22 621.0 12,952 146
Rye (28064)
1,902 1.75 325.1 1,084 19
Greenhouse Propagation (155)
1,722 3.90 44.0 442.0 93
Dried Beans (15001)
1,692 0.21 1,076 7,901 79
Bell Peppers (11003)
1,621 0.29 341.0 5,426 121
Unknown (-1)
1,538 0.98 281.4 1,568 45
Strawberries (1016)
1,318 48.8 35.0 27.0 8
Forage Grasses (22000)
1,012 0.18 1,803 5,778 59
 
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.