PAN Pesticides Database - California Pesticide Use

Pesticide Use on Corn in 2008

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

Identifying information about Corn, including commodity group and code number.
Top 50 pesticides used on Corn, 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.
Pesticide use on Corn by county for all counties in California, with information on gross pounds used, application rate, acres planted, and number of applications.

Crop or Site information for Corn

Basic Identification Information About This Crop or Site
Name
CDFA Commodity Group
Use Category
EPA Site Code
DPR Site Code
Corn, General
Field Crops
AG
29119
29119

There are two types of corn reported in the PUR data: for human consumption and for forage. Due to inconsistencies in how these are reported, actual variability in acres planted, and possibly errors in the original data as well, reported corn acreage is highly variable. Combining the two types of corn into a single category eliminates some of the variability.

 

Top 50 Pesticides Used on Corn in California in 2008


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 212,030 0.23 47,922 908,247
Uses:
Sulfur (560)
Inorganic Not Listed 31,659 24.8 1,243 1,278
Uses: Fungicide, Insecticide
Methomyl (383)
N-Methyl Carbamate Yes 31,037 0.43 19,016 72,614
Uses: Insecticide, Breakdown product
Polyoxyethylene sorbitol, mixed ethyl ester (1178)
Polyalkyloxy Compound Not Listed 17,540 1.15 3,195 15,261
Uses: Adjuvant
Propargite (445)
Unclassified Yes 16,783 2.15 9,095 7,790
Uses: Insecticide
Chlorpyrifos (253)
Organophosphorus Yes 10,372 1.25 7,408 8,323
Uses: Insecticide, Nematicide
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 7,443 1.12 5,963 6,623
Uses: Herbicide
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 6,256 1.18 4,860 5,285
Uses: Herbicide
Diazinon (198)
Organophosphorus Yes 6,194 0.87 4,310 7,108
Uses: Insecticide
Metolachlor, (S) (5133)
Chloroacetanilide Yes 6,037 1.18 5,696 5,108
Uses: Herbicide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 5,401 0.13 13,554 41,658
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
Metolachlor (1996)
Chloroacetanilide Yes 5,022 1.71 3,073 2,936
Uses: Herbicide
MCIAL code 401 (2045)
Petroleum derivative Not Listed 4,784 0.28 4,197 17,294
Uses: Insecticide, Adjuvant
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 4,690 1.08 4,744 4,336
Uses: Herbicide
Atrazine (45)
Triazine Yes 4,498 1.25 3,780 3,607
Uses: Herbicide
Oxydemeton-methyl (382)
Organophosphorus Yes 4,152 0.61 6,955 6,842
Uses: Insecticide
Methyl soyate (3519)
Fatty acid ester Not Listed 3,814 0.18 6,469 21,735
Uses: Adjuvant
Esfenvalerate (2321)
Pyrethroid Not Listed 2,729 0.05 13,519 56,922
Uses: Insecticide
Fatty acids, methyl esters (389)
Fatty acid ester Not Listed 2,676 0.17 2,880 15,433
Uses: Adjuvant
Lecithin (3264)
Botanical Not Listed 2,189 0.13 2,952 16,564
Uses: Fungicide
Propionic acid (505)
Unclassified Yes 2,169 0.13 2,943 16,558
Uses: Fungicide, Microbiocide, Preservative
Bacillus thuringiensis (berliner), subsp. Kurstaki, strain SA-11 (3862)
Microbial Not Listed 2,029 0.54 1,659 3,727
Uses: Insecticide
Carbaryl (105)
N-Methyl Carbamate Yes 1,878 1.39 1,058 1,347
Uses: Insecticide, Plant Growth Regulator, Nematicide
Alkylaryl poly(oxyethylene) glycol (748)
Polyalkyloxy Compound Not Listed 1,631 0.18 4,042 9,143
Uses: Adjuvant
Bifenthrin (2300)
Pyrethroid Yes 1,576 0.14 8,390 11,644
Uses: Insecticide
Alachlor (678)
Chloroacetanilide Yes 1,533 2.87 1,719 534.4
Uses: Herbicide
Spiromesifen (5858)
Keto-enol Not Listed 1,508 0.13 11,592 11,585
Uses: Insecticide
Glyphosate (2997)
Phosphonoglycine Not Listed 1,299 0.66 1,985 1,957
Uses: Herbicide
EPTC (264)
Thiocarbamate Yes 1,057 3.62 287.0 291.9
Uses: Herbicide
Endosulfan (259)
Organochlorine Yes 986.0 1.02 685.0 965.0
Uses: Insecticide
Citric acid (142)
Unclassified Yes 985.1 0.04 7,117 23,706
Uses: pH Adjustment, Fungicide, Microbiocide
Mineral oil (401, 2687, 473)
Petroleum derivative Yes 955.4 0.67 484.4 1,433
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
Poly (methylene para nonylphenoxy) - poly (oxypropylene) propanol (1788)
Polyalkyloxy Compound Not Listed 910.5 0.06 3,034 15,587
Uses: Adjuvant
Phosphoric acid (871)
Inorganic Not Listed 903.8 0.03 13,895 30,896
Uses: Fungicide, pH Adjustment, Herbicide, Microbiocide
Cypermethrin, zeta (3866)
Pyrethroid Yes 861.0 0.05 7,430 18,181
Uses: Insecticide
p-nonylphenyl polyoxyethylene (4-14 moles)dihydrogen phosphate ester (5016)
Polyalkyloxy Compound Not Listed 857.1 0.63 1,012 1,355
Uses: Adjuvant, Soap/Surfactant
Methoxyfenozide (5698)
Diacylhydrazine Not Listed 841.4 0.14 5,304 6,071
Uses: Insecticide
Poly oxyethylated tallow amine (2807)
Polyalkyloxy Compound Not Listed 716.7 0.05 2,880 15,433
Uses: Adjuvant
Oleic acid, methyl ester (2266)
Fatty acid ester Not Listed 699.9 0.85 724.1 822.4
Uses: Adjuvant
Ammonium sulfate (1363)
Inorganic Not Listed 678.7 0.13 4,625 5,146
Uses: Herbicide, pH Adjustment
Isopropyl alcohol (342)
Alcohol/Ether Not Listed 676.4 0.03 13,628 26,070
Uses: Microbiocide, Solvent
Malathion (367)
Organophosphorus Yes 654.6 1.14 463.0 575.5
Uses: Insecticide
Cyhalothrin, lambda (2297)
Pyrethroid Not Listed 653.1 0.03 7,969 22,169
Uses: Insecticide
Permethrin (2008)
Pyrethroid Not Listed 617.5 0.18 3,472 3,391
Uses: Insecticide
Aluminum phosphide (484)
Inorganic Yes 604.8 0.03 193.0 193.0
Uses: Fumigant, Fungicide
Solvent naphtha (petroleum), light aromatic (862, 3804)
Petroleum derivative Not Listed 520.0 0.82 636.0 633.0
Note! Data for Solvent naphtha (petroleum), light aromatic summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Solvent, Insecticide
Petroleum oil, unclassified (765)
Petroleum derivative Not Listed 492.6 2.11 135.0 234.0
Uses: Insecticide, Herbicide, Fungicide, Adjuvant
Polybutenes (1040)
Polymer Not Listed 468.1 0.03 2,880 14,900
Uses: Rodenticide
Bentazon, sodium salt (1944)
Unclassified Yes 448.7 1.09 91.0 413.0
Uses: Herbicide
Bacillus thuringiensis, Subsp. Aizawai, Strain ABTS-1857 (5879)
Microbial Not Listed 447.6 0.92 232.4 485.3
Uses: Insecticide

Regional Use for All Chemicals on Corn in 2008

Region
(County Code)
Gross
Pounds
Application
Rate
pounds per acre treated
Acres Planted
where all or part
has been sprayed
Acres Treated Application
Count
California (00)
212,030 0.23 47,922 908,247 13,693
Fresno (10)
61,526 0.20 10,184 309,548 2,576
Imperial (13)
44,258 0.36 6,878 123,475 1,921
Merced (24)
38,214 0.42 10,388 90,086 807
Contra Costa (07)
31,018 0.18 3,842 172,844 3,024
San Joaquin (39)
10,684 0.22 2,543 49,516 1,002
Riverside (33)
8,628 0.15 2,690 58,471 1,462
Santa Clara (43)
4,994 0.26 943.5 19,450 645
Ventura (56)
4,537 0.20 1,838 22,757 492
Santa Barbara (42)
2,501 0.08 2,435 32,318 686
Sacramento (34)
1,796 0.52 529.3 3,487 294
Yolo (57)
1,208 0.19 394.8 6,298 133
Madera (20)
725.3 0.22 201.2 555.1 34
Solano (48)
674.8 0.06 417.0 11,473 222
Tulare (54)
663.2 0.13 3,922 4,918 145
Kings (16)
252.9 0.11 164.4 2,214 53
Glenn (11)
166.0 0.99 167.0 167.0 2
Monterey (27)
109.0 0.43 271.0 254.0 27
San Diego (37)
37.3 0.13 35.0 290.0 64
San Benito (35)
18.4 0.68 17.2 27.1 14
Yuba (58)
7.52 2.15 4.50 3.50 2
Orange (30)
5.66 0.19 10.5 29.7 32
San Luis Obispo (40)
3.87 0.14 42.0 27.2 30
Los Angeles (19)
1.63 0.04 5.00 38.0 22
Stanislaus (50)
0.06 0.06 0.25 1.00 4
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.