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Relative Leaching Potential - Insecticides
High - Very High Moderate Low - Very Low
Ethoprop (Mocap)
Fenaminophos (Nemacure)
Isazophos (Triumph)
Oxydemeton Methyl (Metasystox)
Trichlorfon (Dylox & Others)
Dimethoate (Cygon, Dimethoate)
Imidacloprid (Merit & others)
Isofenphos (Oftanol & Others)
Lindane (Lindane & Gamma-Mean)
Abamectin (Avid)
Acephate (Orthene)
Bendiocarb (Ficam & Turcam)
Bifenthrin (Talstar)
Carbaryl (Sevin & Others)
Chlorpyrifos (Dursban & Others)
Cyfluthrin (Tempo)
Cyhalothrin (Demand & Scimitar)
Cypermethrin (Demon & Cynoff)
Diazinon (Diazinon & Others)
Esfenvalerate (Sect-B-gone)
Fenoxycarb (Award)
Fenvalerate (Tribute)
Fipronil (Chipco Choice)
Fluvalinate (Mavrik,Yardex)
Fonophos (Crusade)
Hydramethylnon (Amdro, Siege)
Malathion (Malathion & Others)
Permethrin (Astro, Dragnet & Others)
Spinosad (Conserve)
PESTICIDE MOVEMENT IN SOIL
DR. MICHAEL PFEIFFER
The relative ease with which pesticides move in soil
has a profound effect on control of target pests in soil
and on protection of the environment. The ability of a
pesticide to move within soil can be quite beneficial in
controlling pests in soil and can potentially be very
damaging if the material reaches groundwater and
becomes a pollutant. Knowledge of the potential
movement of specific pesticides is essential for
successful control of soil borne pest and in protecting
the environment.
Many things have to be factored in when considering
the potential of a specific pesticide to pollute ground
water. Some of the factors which determine whether a
particular pesticide could pollute ground water are:
nearness to the surface of the groundwater, soil type and
pH, microbial populations, amount of irrigation or
rainfall, water solubility of the active ingredient (a.i.),
degree of absorption or adsorption of the a.i. to soil or
organic matter, persistence of the a.i. and the amount of
product applied. None of these single factors by
themselves can be used to reliably predict whether or
not a particular product will become a ground water
pollutant.
The tables below are only general guidelines for the
potential of specific products to pollute ground water
and should not be considered as an endorsement.
Remember, many factors are involved in whether or not
a particular product is likely to pollute groundwater.
The data in these tables in most cases was generated
from the OSU, Extension Pesticide Properties Database.
The OSU database relies heavily on databases devel-
oped by USDA. References are presented.
The relative leaching potential of specific materials are
grouped by type of pesticide: insecticides, herbicides
and fungicides. The common names for pesticides are
presented followed by some or all of the currently used
trade names in parenthesis. Due to space limitations, not
all trade names could be included in these tables.
Apologies are extended to companies whose trade
names are not entered in these tables.
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Relative Leaching Potential - Fungicides
High - Very High Moderate Low - Very Low
Fenarimol (Rubigan)
Mefenoxam (Subdue Maxx)
Metalaxyl (Subdue 2E & Others)
Etridiazole (Koban & Ohers)
Myclobutanil (Eagle)
Propiconazole (Banner)
Triadimefon (Bayleton & Others)
Vinclozolin (Curalan & Touche)
Azoxystrobin (Heritage)
Captan (Captan)
Chloroneb (Teremec & Others)
Chlorothalonil (Daconil & Others)
Fosetyl-Aluminum (Aliette & Prodigy)
Iprodione (Chipco 26019 & Others)
Mancozeb (Fore & Others)
Propamocarb (Banol)
Quintozene (PCNB & Many Names)
Thiophanate methyl (Fungo & 3336)
Thiram ( Spotrete & Thiram)
Relative Leaching Potential - Herbicides
High - Very High Moderate Low - Very Low
Bentazon (Basagran)
Chlorsulfuron (Telar, Corsair)
Clopyralid amine salt (Lontrel)
Dicamba (Vanquish)
Imazaquin (Image)
Imazapyr (Arsenal)
MCPA (MCPA & Others)
Mecoprop (MCPP & Others)
Metalachlor (Pennant)
Metribuzin (Sencor)
Metsulfuron methyl (Manor)
Simazine (Princep & Others)
Triclopyr Amine salt (Turflon)
Bensulide (Betasan & Bensumec)
2,4-D Amine salt (HiDep, Savage,
Weedar 64 & Others)
2,4-D Ester (Weedone LV, & Others)
Diclobenil (Casoron & Others)
Ethofumesate (Prograss)
Napropamide (Devrinol)
Siduron (Tupersan & Others)
Benefin (Balan)
Bromoxynil (Buctril)
DCPA (Dacthal)
Diclofop (Illoxan)
DSMA (DSMA & Others)
Glufosinate-Ammonium (Finale)
Glyphosate (Roundup & Others)
Fenoxprop-p-ethyl (Acclaim)
Fluazifop-p-butyl (Fusilade & Others)
Isoxaben (Gallery)
MSMA ( MSMA & Others)
Oryzalin (Surflan)
Oxadiazon (Ronstar)
Pendimethalin (Pendulum & Others)
Prodiamine (Barricade)
Pronamide (Kerb)
Sethoxydim (Vantage)
Trifluralin (Treflan, Preen)
© 2001 PESTICIDE TRAINING RESOURCES
SELECTED REFERENCES:
Augustijn-Beckers, P.W.M., Hornsby, A.G. and R.D.Wauchope. 1994. The SCS/ARS/CES Pesticide Properties Database for
Environmental Decision Making II. Additional Compounds. Reviews of Environmental Contamination and Toxicology.
137:1-82.
Vogue, P.A., Kerle, E.A. and J.J. Jenkins 1994. OSU Extension Pesticide Properties Database. Oregon State University.
11pp.
Wauchope, R.D., Buttler, T.M., Hornsby, A.G., Augustijn-Beckers, P.W.M. and J.P. Burt. 1992. The SCS/ARS/CES Pesticide
Properties Database for Environmental Decision Making. Reviews of Environmental Contamination and Toxicology.
123:1-155.