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Publication #SL73

DeSoto County: Soil Ratings for Selecting Pesticides1

G.W. Hurt and T.A. Obreza2

RATINGS FOR DESOTO COUNTY SOILS FOR PESTICIDE SELECTION

Resource soil scientists with the U. S. Natural Resources Conservation Service have rated the soils that are delineated by map units in the DeSoto County Soil Survey Report1 for their potential for leaching and runoff of pesticides. The rating criteria are given in a companion publication entitled "Soil Ratings for Selecting Pesticides for Water Quality Goals." These soil ratings have been developed to help pesticide users determine the potential for pesticides to be lost to groundwater or surface water bodies.

As explained in Circular 9592, factors that determine pesticide leaching ratings in soil are permeability and the occurrence of mucky layers in the upper 80 inches of the soil. Soils rated High have a high potential for pesticides to leach to groundwater, soils rated Medium have a medium potential for pesticides to leach to groundwater, and soils rated Low have a low potential for pesticides to leach to groundwater. Factors that determine pesticide runoff ratings from soils are hydrologic group, permeability, and slope. Soils rated High have a high potential for pesticide runoff, soils rated Medium have a medium potential for pesticide runoff, and soils rated Low have a low potential for pesticide runoff.

NOTE: The user may discover that one or more map unit names in Table 1 have been updated from names given in the legend of the soil survey report1. For example, a soil map unit may be listed in the survey report with a single soil series name, whereas the same soil map unit is shown as comprising two or more soil series in Table 1 (sequence numbers 1, 2, 3, ..) Where this occurs, the user should use the multi-named map unit given here, and make pesticide selections based on the most limiting condition to be found on the land in question. If necessary, the local Natural Resources Conservation Service office should be contacted to perform an on-site evaluation of the land in question.

REFERENCES

  1. Cowherd, W.D., W.G. Henderson, Jr., E.J. Sheehan and S.T. Ploetz. 1989. Soil Survey of DeSoto County, Florida. USDA/NRCS in cooperation with University of Florida, Institute of Food and Agricultural Sciences, Agricultural Experiment Stations, Soil and Water Science Department and the Florida Department of Agriculture and Consumer Services.

  2. Obreza, T.A. and G. W. Hurt. 2006. Soil Ratings For Selecting Pesticides For Water Quality Goals. Circular 959, Soil and Water Science Department, Cooperative Extension Service, University of Florida, Gainesville, Florida, 32611. 5pp.

ACKNOWLEDGMENTS

The development of this document was supported by the USDA/ES Water Quality Initiative Project # 89EWQI-1-9134.

Tables

Table 1. 

Soil Ratings for DeSoto County (see footnotes for explanations of column headings).

MUID

SYS NUM

MUSYM

SOIL NAME

SOIL LEACH

SOIL RUNOFF

27002 1 2 ANCLOTE High High
27003 1 3 BASINGER High High
27004 1 4 BASINGER High High
27005 1 5 BASINGER High High
27006 1 6 BRADENTON Low High
27007 1 7 BRADENTON Low High
27007 2 7 FELDA Low High
27007 3 7 CHOBEE Low High
27008 1 8 BRADENTON Low High
27008 2 8 FELDA Low High
27008 3 8 CHOBEE Low High
27009 1 9 CASSIA Low Medium
27010 1 10 CHOBEE Low High
27011 1 11 DELRAY Low High
27012 1 12 DURBIN High High
27012 2 12 WULFERT High High
27013 1 13 EAUGALLIE Low High
27014 1 14 FARMTON Low High
27015 1 15 FELDA Low High
27016 1 16 FELDA Low High
27017 1 17 FELDA Low High
27018 1 18 FLORIDANA Low High
27019 1 19 GATOR Low High
27020 1 20 IMMOKALEE Medium High
27021 1 21 MALABAR Low High
27022 1 22 MALABAR Low High
27023 1 23 MALABAR Low High
27024 1 24 MYAKKA Medium High
27025 1 25 ONA Medium High
27026 1 26 PINEDA Low High
27027 1 27 PINEDA Low High
27028 1 28 PINEDA Low High
27029 1 29 PINEDA Low High
27029 2 29 PINELLAS Low High
27030 1 30 POMELLO Medium Medium
27031 1 31 POMPANO High High
27032 1 32 PUNTA Low High
27033 1 33 QUARTZIPSAMENTS High Low
27034 1 34 SAMSULA Medium High
27035 1 35 SATELLITE High Medium
27036 1 36 SMYRNA Medium High
27037 1 37 TAVARES High Low
27038 1 38 TERRA CEIA Medium High
27039 1 39 TERRA CEIA Medium High
27040 1 40 VALKARIA High High
27041 1 41 WABASSO Low High
27042 1 42 ZOLFO High Medium
Footnotes:
MUID = Natural Resources Conservation Service's map unit identifier.
SEQ NUM = Sequence Number, indicating a particular soil name among one or more names constituting a map unit name.
MUSYM = Map Unit Symbol from the soil map and legend in the Soil Survey of DeSoto County, Florida. Note that if a MUSYM appears more than once in this list it signifies that two or more soils are co-dominant in that map unit, and each such soil is rated separately here.
SOIL NAME = Name of soil or other landscape component.
SOIL LEACH = The rating of the soil for leaching of pesticides through the soil profile.
SOIL RUNOFF = The rating of the soil for runoff of pesticides from the soil surface.
NOTE: See "Soil Ratings for Selecting Pesticides for Water Quality Goals" (IFAS Extension Circular 959) for explanations of the criteria used to develop soil ratings presented in the right-hand four columns of this list.

Footnotes

1.

This document is SL73, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: April 1991, revised September 2006. Reviewed June 2013. Please visit the EDIS website at http://edis.ifas.ufl.edu.

2.

G.W. Hurt, National Leader for Hydric Soils, Natural Resources Conservation Service, USDA; T.A. Obreza, Professor, Soil and Water Science Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.