                                       
                              Mesotrione (122990)
                     Screening Level Usage Analysis (SLUA)
                               November 14, 2018
                                       
What is a Screening Level Usage Analysis (SLUA)?
 A summary of U.S. usage for a pesticidal active ingredient by agricultural crop.
 The information presented is not proprietary, business confidential, or trade secret. 
What does it contain?
 Pesticide usage statistics for a single active ingredient only.
 Available U.S., national summary statistics for pesticide usage information by crop.
 Average pounds of active ingredient applied  -  Annual average pounds of the pesticide reported applied for each agricultural crop (i.e., for surveyed states, not for the entire United States). Values are calculated by merging pesticide usage data sources together; averaging across all observations within a year for each data source, averaging across data sources within years, averaging across year, and then rounding.  Any surveyed year without reported usage for the AI is included as a value of zero pounds applied in the calculation of the average. Values are rounded using common rounding rules (i.e., the half round up method).  Note:  If the estimated value is less than 500, then that value is labeled <500.  Estimated values between 500 & <1,000,000 are rounded to 1 place value.  Estimated values of 1,000,000 or greater are rounded to the hundred thousand' place value. (Examples: 478 would be reported as ">500"; 43,873 would be reported as "40,000"; 47,873,901 would be reported as "47,900,000")
 Average percent of crop treated - Values are calculated by merging data sources together; averaging by year, averaging across all years, & rounding to the nearest multiple of 5.  Note:  If the estimated value is less than 1, then the value is labeled <1.  If the estimated value is less than 2.5, then the value is labeled <2.5.
 Maximum percent of crop treated - Value is the single maximum annual average value reported across all data sources, across all years. The value is rounded up to the nearest multiple of 5.  Note:  If the estimated value is less than 2.5, then the value is labeled <2.5.
What are the data sources used?
 USDA-NASS (United States Department of Agriculture's National Agricultural Statistics Service)  -  pesticide usage data from 2007 to 2016. (available at https://quickstats.nass.usda.gov/) 
 Agricultural Market Research Data (AMRD)  -  pesticide usage data from 2007 to 2016.
 California Department of Pesticide Regulation (DPR) Pesticide Use Reporting (PUR) data for 2007 to 2016. (available at http://www.cdpr.ca.gov/docs/pur/purmain.htm)
What should I consider when interpreting the reported data?
 The surveys sample from enough states to represent 80% or more of the crop production, in most cases. In rare cases, the survey may sample fewer states than required to reach 80% of the crop production, such deviations are based on the scope of the survey and availability of resources.
 Usage statistics are included only for surveyed crops with reported, quantitative use of the active ingredient during the sampling period (i.e., 2007 to 2016). 
 Lack of reported usage data for the pesticide on a crop does not imply zero usage. There are several reasons for this.  As with any sampling data, it is possible to some usage may be overlooked. Also, even if usage is noted in data sources, it may not be quantified.  In such instances, site and associated usage are not reported in the SLUA. 
 Additional registered uses may exist but are not included because the available surveys neither collect, nor report, usage for those crops (e.g., small acreage crops).
 Non-agricultural use sites (e.g., turf, post-harvest, mosquito control, etc.) are not reported in the SLUA.  A separate request must be made to receive these estimates.
 Some sites have reported usage without a registered §3 use.  This usage could be due to various factors, including, but not limited to Section 18 requests, existing stocks of the chemical, data collection errors, and experimental use permits (EUPs).  
	 
                                       
     Screening Level Estimates of Agricultural Uses of Mesotrione (122990)
                             Sorted Alphabetically
                          Reporting Years: 2007-2016
                               November 14, 2018
                                                                               

                                Annual Average
                             Percent Crop Treated
                                                                               
Crop
                               Lbs. A.I. Applied
                                    Average
                                    Maximum
                                                                              1
Almond
                                     3,300
                                    <2.5
                                    <2.5
                                                                              2
Asparagus
                                    <500
                                       5
                                       5
                                                                              3
Blueberries
                                     1,000
                                      10
                                      15
                                                                              4
Caneberries
                                    <500
                                       5
                                      10
                                                                              5
Corn
                                   2,300,000
                                      20
                                      30
                                                                              6
Oranges
                                    <500
                                     <1
                                    <2.5
                                                                              7
Pistachios
                                    <500
                                    <2.5
                                    <2.5
                                                                              8
Plums/Prunes
                                    <500
                                     <1
                                    <2.5
                                                                              9
Sorghum
                                    50,000
                                       5
                                      15
                                                                             10
Sugarcane
                                     7,000
                                       5
                                      10
                                                                             11
Sweet Corn
                                    10,000
                                      15
                                      25
                                                                             12
Walnuts
                                    <500
                                     <1
                                    <2.5

All numbers are rounded to one significant digit, except those over 1 million, which are rounded to two significant digits.
  <500: less than 500 pounds of active ingredients.
  	<2.5: less than 2.5 percent of crop is treated.
 	 <1: less than 1 percent of crop is treated.

SLUA data sources include: 
  USDA-NASS (United States Department of Agriculture's National Agricultural Statistics Service) 
Agricultural Market Research Data
These results reflect amalgamated data developed by the Agency and are releasable to the public.


