Glades County: Soil Ratings for Selecting Pesticides¹

G.W. Hurt and T.A. Obreza²

Resource soil scientists with the USDA Natural Resources Conservation Service have rated the soils that are delineated by map units in the Glades 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 the list in Table 1 (sequence numbers 1, 2, 3, ...) Where this occurs, the user should use the multimap 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. Carter, L., D. Lewis, and J. Vega. 2000. Soil Survey of Glades County, Florida. USDA, NRCS in cooperation with the University of Florida, Institute of Food and Agricultural Sciences, Agricultural Experiment Stations and Soil and Water Science Department. U.S. GPO, Washington, DC.

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.

Tables

Table 1. Soil Ratings for Glades County. (see footnotes for explanation of column headings)

MUID	SEQ NUM	MUSYM	SOIL NAME	SOIL LEACH	SOIL RUNOFF
043002	1	2	HALLANDALE	High	High
043004	1	4	VALKARIA	High	High
043005	1	5	SMYRNA	Medium	High
043006	1	6	MALABAR	Low	High
043007	1	7	POPLE	Low	High
043008	1	8	GATOR	Low	High
043009	1	9	SANIBEL	Low	High
043010	1	10	FELDA	Medium	High
043011	1	11	TEQUESTA	Low	High
043012	1	12	CHOBEE	Low	High
043013	1	13	BOCA	Medium	High
043014	1	14	BASINGER	High	High
043015	1	15	PINEDA	Low	High
043016	1	16	FLORIDANA	Low	High
043017	1	17	OKEELANTA	Low	High
043019	1	19	TERRA CEIA	Low	High
043020	1	20	EAUGALLIE	Medium	High
043022	1	22	ASTOR	High	High
043023	1	23	OLDSMAR	Low	High
043024	1	24	HALLANDALE	High	High
043024	2	24	POPLE	Low	High
043026	1	26	IMMOKALEE	Medium	High
043027	1	27	FT. DRUM	Medium	High
043028	1	28	POMELLO	Medium	Medium
043029	1	29	MYAKKA	Medium	High
043032	1	32	FLORIDANA	Low	High
043032	2	32	ASTOR	High	High
043032	3	32	FELDA	Medium	High
043034	1	34	BASINGER	High	High
043035	1	35	ARENTS	High	High
043036	1	36	MALABAR	Low	High
043037	1	37	LAUDERHILL	Low	High
043038	1	38	PAHOKEE	Low	High
043040	1	40	PLANTATION	Low	High
043041	1	41	DANIA	Low	High
043042	1	42	OKEELANTA	Low	High
043042	2	42	DANIA	Low	High
043043	1	43	SANIBEL	Low	High
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 Glades 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 (urban land, water, etc.).
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.

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Footnotes

1. This document is SL173, 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: September 2000. 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.

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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.