Hexythiazox (128849)

Screening-level Usage Analysis (SLUA)

Date: 03-31-06  

What is a Screening Level Usage Analysis (SLUA)?

Available estimates of pesticide usage data for a particular active
ingredient that is used on agricultural crops in the United States.

What does it contain?

Pesticide usage data for a single active ingredient only.

Agricultural use sites (crops) that the pesticide is reported to be used
on. 

Available pesticide usage information (i.e., does not include all of the
United States).

Annual percent of crop treated (average & maximum) for each agricultural
crop.

Average annual pounds of the pesticide applied for each agricultural
crop (i.e., for the states surveyed, not for the entire United States).

What assumptions can I make about the reported data?

Average pounds of active ingredient applied - Values are calculated by
merging pesticide usage data sources together; averaging by year,
averaging across all years, & then rounding.  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 significant digit. 
Estimated values of 1,000,000 or greater are rounded to 2 significant
digits.)

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.

Maximum percent of crop treated - Value is the single maximum value
reported across all data sources, across all years, & 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 1999 to
2004.

Private Pesticide Market Research – pesticide usage data from 1999 to
2004.

NCFAP 97 (National Center for Food and Agricultural Policy), and NPUD
2002 (National Pesticide Use Database) – insecticide pesticide usage
data from NCFAP 97, and fungicide and herbicide usage data from NPUD 02,
of the CropLife Foundation,  are used only if data are not available
from the other sources.

California DPR data can be requested separately.

What are the data limitations?

Additional registered uses may exist but are not included because the
available surveys do not report usage (e.g., small acreage crops).

Lack of reported usage data for the pesticide on a crop does not imply
zero usage.

Usage data on a particular site may be noted in data sources, but not
quantified.  In these instances, the site would not be reported in the
SLUA.

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 show some use, even though they are not on the label.  This
usage could be due to Section 18 requests, existing stocks of the
chemical, data collection errors, experimental use permit (EUP), and/or
because of an illegal use. 

Who do I contact for further information and/or questions on this SLUA?

BEAD Analyst: Jenna Carter (703-308-8370)

Reviewer: Art Grube (703-308-8095)                             

Wednesday, March 29, 2006 9:22

Screening Level Estimates of Agricultural Uses of HEXYTHIAZOX (128849)

Sorted Alphabetically

	  	 		

	            Crop	 		    Lbs. A. I.			Percent Crop Ttd.				  	 							
Avg.		Max.

	1 	Almonds *		       <500			<1           	<2.5

	2 	Apples		                  1,000			<1              	  5

	3 	Apricots		       <500	                          5               	  5

	4 	Cherries		       <500			<1           	<2.5

	5 	Dates			       <500			10             	10

	6 	Hops (NCFAP '97)	      2,000			60		--

	7 	Nectarines *		       <500			  5              	  5

	8 	Peaches		      1,000			  5              	  5

	9 	Pears			      1,000			  5             	15

          10	Prunes & Plums *	       <500			<1           	<2.5

          11	Strawberries		      4,000			25            	30

          12	Walnuts		       <500			<1           	<2.5

	  	 		

All numbers rounded.		

'<500' indicates less than 500 pounds of active ingredient.		

'<2.5' indicates less than 2.5 percent of crop is treated.		

'<1'	indicates less than 1	percent of crop is treated.	

* CA data only, but 95% or more of U.S. acres are in California		

	  	 	 

Last Revised on 03/01/2006

