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DeSoto County: Soil Ratings for Selecting Pesticides1
G.W. Hurt and T.A. Obreza2RATINGS 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
- 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.
- 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. Please visit the EDIS Web site 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 extension publications, contact your county Cooperative Extension service.
U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean.
Copyright Information
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