PAN Pesticides Database - California Pesticide Use

Pesticide Use on Corn in 2012

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

 

Top 50 Pesticides Used on Corn in California 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 358,662 0.21 52,455 1,676,670
Uses:
Methomyl (383)
N-Methyl Carbamate Yes 67,076 0.44 26,146 153,508
Uses: Insecticide, Breakdown product
Sulfur (560)
Inorganic Not Listed 54,299 21.8 2,076 2,485
Uses: Fungicide, Insecticide
Nonyl phenoxy poly (ethylene oxy) ethanol (1743, 1397, 3999, 5755)
Polyalkyloxy Compound Not Listed 15,580 0.09 35,642 169,300
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
Chlorpyrifos (253)
Organophosphorus Yes 12,073 0.96 11,324 12,621
Uses: Insecticide, Nematicide
Metolachlor (1996)
Chloroacetanilide Yes 11,969 2.08 5,746 5,758
Uses: Herbicide
Pendimethalin (1929)
2,6-Dinitroaniline Not Listed 11,662 1.15 9,929 10,102
Uses: Herbicide
Glyphosate, potassium salt (5820)
Phosphonoglycine Not Listed 11,574 1.44 6,917 8,041
Uses: Herbicide
Polyoxyethylene soybean oil fatty acid ester (mol. Wt. 850) (3338)
Polyalkyloxy Compound Not Listed 11,522 0.38 6,491 30,547
Uses: Insecticide, Adjuvant
Polyoxyethylene sorbitol, mixed ethyl ester (1178)
Polyalkyloxy Compound Not Listed 11,458 0.96 2,773 11,909
Uses: Adjuvant
Mineral oil, unrefined (401, 2045, 765, 763, 2687, 473)
Petroleum derivative-Aromatic Yes 10,990 0.46 5,398 24,051
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
Atrazine (45)
Triazine Yes 10,827 1.23 8,602 8,778
Uses: Herbicide
Mineral oil, refined (3846, 2601, 2106, 2768, 1641)
Petroleum derivative-Saturated Not Listed 10,256 0.97 4,565 10,572
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
Ethylene glycol (276)
Glycol Not Listed 9,677 0.18 7,317 54,178
Uses: Solvent, Adjuvant
Methyl soyate (3519)
Fatty acid ester Not Listed 8,519 0.32 10,289 26,353
Uses: Adjuvant
Propargite (445)
Unclassified Yes 7,043 2.17 3,604 3,252
Uses: Insecticide
Esfenvalerate (2321)
Pyrethroid Not Listed 6,396 0.05 21,564 134,695
Uses: Insecticide
Glyphosate, isopropylamine salt (1855)
Phosphonoglycine Not Listed 6,272 1.38 3,901 4,544
Uses: Herbicide
Phosphoric acid (871)
Inorganic Not Listed 4,489 0.05 16,444 89,067
Uses: Fungicide, pH Adjustment, Herbicide, Microbiocide
Bifenthrin (2300)
Pyrethroid Yes 4,405 0.27 9,869 16,357
Uses: Insecticide
Lecithin (3264)
Botanical Not Listed 4,121 0.13 7,352 30,674
Uses: Fungicide
p-nonylphenyl polyoxyethylene (4-14 moles)dihydrogen phosphate ester (5016)
Polyalkyloxy Compound Not Listed 3,681 0.29 6,280 12,723
Uses: Adjuvant, Soap/Surfactant
Spiromesifen (5858)
Keto-enol Not Listed 3,612 0.21 17,598 17,259
Uses: Insecticide
Metolachlor, (S) (5133)
Chloroacetanilide Yes 3,393 1.61 2,699 2,111
Uses: Herbicide
Propionic acid (505)
Animal derived Yes 3,299 0.12 5,320 26,841
Uses: Fungicide, Microbiocide, Preservative
Undecyl polyoxyethylene (5 moles ethylene oxide) (3929)
Polyalkyloxy Compound Not Listed 3,245 0.11 7,350 30,107
Uses: Adjuvant
Imidacloprid (3849)
Neonicotinoid Not Listed 3,162 0.65 3,280 4,878
Uses: Insecticide
Flubendiamide (5948)
Anthranilic diamide Not Listed 2,975 0.09 9,468 32,185
Uses: Insecticide
Oxydemeton-methyl (382)
Organophosphorus Yes 2,737 1.05 3,110 2,601
Uses: Insecticide
Sodium chlorate (536)
Inorganic Yes 2,466 5.99 411.4 411.4
Uses: Defoliant, Herbicide, Microbiocide
Oleic acid, methyl ester (2266)
Fatty acid ester Not Listed 2,459 0.34 5,262 7,318
Uses: Adjuvant
Isopropyl alcohol (342)
Alcohol/Ether Not Listed 2,405 0.03 17,035 89,770
Uses: Microbiocide, Solvent
Malathion (367)
Organophosphorus Yes 2,245 1.02 1,303 2,196
Uses: Insecticide
Ethylene glycol polymer (2558, 1600, 2103, 2797, 2104)
Polyalkyloxy Compound Not Listed 2,228 0.13 4,276 17,342
Note! Data for Ethylene glycol polymer summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Adjuvant, Soap/Surfactant
Cyhalothrin, lambda (2297)
Pyrethroid Not Listed 2,038 0.03 14,658 68,979
Uses: Insecticide
Indoxacarb, S-isomer (5331)
Unclassified Not Listed 1,997 0.07 9,671 30,368
Uses: Insecticide
Alachlor (678)
Chloroacetanilide Yes 1,920 2.29 1,416 837.2
Uses: Herbicide
Tall oil (2912)
Botanical Not Listed 1,365 0.07 5,694 18,666
Uses: Adjuvant
Chlorantraniliprole (5964)
Anthranilic diamide Not Listed 1,234 0.05 10,059 23,342
Uses: Insecticide
Hexythiazox (2303)
Unclassified Yes 1,131 0.13 8,293 8,772
Uses: Insect Growth Regulator
Zinc sulfate (667, 2995)
Inorganic-Zinc Yes 1,085 0.02 8,075 62,719
Note! Data for Zinc sulfate summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Microbiocide, Herbicide
Cypermethrin, zeta (3866)
Pyrethroid Yes 1,072 0.05 9,546 22,474
Uses: Insecticide
Carbaryl (105)
N-Methyl Carbamate Yes 1,061 1.97 235.0 539.0
Uses: Insecticide, Plant Growth Regulator, Nematicide
Fatty acids, mixed (2069)
Fatty acid Not Listed 990.7 0.04 6,411 26,430
Uses: Adjuvant
Ammonium sulfate (1363)
Inorganic Not Listed 930.5 0.14 5,890 6,523
Uses: Herbicide, pH Adjustment
Cyfluthrin (2223, 3956)
Pyrethroid Not Listed 913.0 0.03 7,755 35,460
Note! Data for Cyfluthrin summarizes data from 2 or more chem codes and may not agree with DPR summaries which total data for each chem code.
Uses: Insecticide
Emulsifiable methylated vegetable oil (5224)
Not Listed 869.1 0.16 860.0 5,453
Uses: Insecticide, Adjuvant
Tall oil acids (1389)
Fatty acid Not Listed 807.9 0.07 2,991 11,092
Uses: Adjuvant
Permethrin (2008)
Pyrethroid Yes 736.5 0.19 2,893 3,927
Uses: Insecticide
Diethylene glycol (2334)
Glycol Not Listed 681.1 0.04 6,258 17,534
Uses: Adjuvant, Solvent

Regional Use for All Chemicals on Corn in 2012

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)
358,662 0.21 52,455 1,676,670 19,773
Fresno (10)
103,497 0.15 11,308 705,738 5,453
Imperial (13)
100,195 0.23 10,595 444,965 4,271
Merced (24)
72,687 0.74 14,362 97,915 1,144
Contra Costa (07)
32,481 0.26 3,564 122,680 2,026
San Joaquin (39)
14,120 0.17 2,127 83,791 1,727
Riverside (33)
12,260 0.13 2,884 90,996 1,687
Ventura (56)
8,164 0.14 1,380 56,519 614
Madera (20)
3,387 0.23 1,292 12,177 103
Santa Clara (43)
3,142 0.15 883.0 20,298 923
Yolo (57)
2,794 0.20 917.0 13,682 434
Sacramento (34)
2,531 0.23 489.0 10,808 361
Los Angeles (19)
1,305 0.18 170.0 7,095 228
Kings (16)
666.2 0.43 647.0 1,556 36
San Benito (35)
576.8 0.18 172.3 3,279 376
Tulare (54)
307.4 0.26 159.0 1,165 66
Colusa (06)
236.0 0.13 428.3 1,775 18
Solano (48)
158.1 0.12 235.0 1,320 46
San Diego (37)
73.3 0.13 80.0 560.8 175
Monterey (27)
38.0 0.42 7.50 90.0 6
Orange (30)
14.1 0.88 39.5 16.0 10
Kern (15)
10.3 0.07 9.00 144.0 7
Mendocino (23)
8.62 0.10 20.0 89.2 30
San Bernardino (36)
4.85 1.86 0.60 2.60 12
Yuba (58)
4.83 1.38 4.25 3.50 1
Butte (04)
0.64 0.25 1.00 2.50 4
Santa Barbara (42)
0.53 0.09 834.0 6.00 6
San Luis Obispo (40)
0.06 - - - 2
Stanislaus (50)
0.05 - - - 3
Shasta (45)
0.04 0.09 0.20 0.40 2
El Dorado (09)
0.02 0.0000 0.25 0.25 2
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.