Abstract
The effects of the tetramic acid insecticide, spirotetramat and the agricultural adjuvant, Destiny, were evaluated on the Cladoceran, Ceriodaphnia dubia. These compounds were evaluated separately and as a mixture because they can be applied together for control of certain crop pests and therefore have the potential to enter surface water as a binary mixture. Acute mortality estimates (48 h) were developed followed by chronic exposure (8 days) studies where several population parameters were recorded. Acute LC50 and 95% CL for spirotetramat and Destiny were estimated to be 23.8 (14.5–35.4) and 26.71 (20.8–34.0) mg/l, respectively. Thus, spirotetramat and Destiny were equitoxic to C. dubia at LC50. For the chronic population study, C. dubia populations were exposed to a range of concentrations for spirotetramat and Destiny singly and as a mixture. Each chemical alone reduced the number of founding individuals, offspring/female, final population size, and population growth rate in a concentration-dependent manner. However, exposure to the mixture caused significantly greater reductions in these parameters than either compound alone. These results indicate that agricultural adjuvants and pesticides may cause more damage to aquatic organisms as a mixture than either product alone. Therefore, future evaluations of pesticide effects should consider the effects of adjuvants as a mixture with pesticides when these products are recommended to be applied together for pest control.
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References
Abbott WS (1925) A method of computing the effectiveness of an insecticide. J Econ Entomol 18:265–267
Angeli G, Baldessari M, Maines R, Duso C (2005) Side-effects of pesticides on the predatory bug Orius laevigatus (Heteroptera: Anthocoridae) in the laboratory. Biocontrol Sci Tech 7:745–754
Bielza P, Fernández E, Grávalos C, Izquierdo J (2009) Testing for non-target effects of spiromesifen on Eretmocerus mundus and Orius laevigatus under greenhouse conditions. Biocontrol 54:229–236
Cabral S, Garcia P, Soares AO (2008) Effects of pirimicarb, buprofezin and pymetrozine on survival, development and reproduction of Coccinella undecimpunctata (Coleoptera: Coccinellidae). Biocontrol Sci Tech 18:307–318
Chen XD, Culbert E, Hebert V, Stark JD (2010) Mixture effects of the adjuvant R-11 and the insecticide imidacloprid on population growth rate and other parameters of Ceriodaphnia dubia. Ecotoxicol Environ Saf 73:132–137
Deardorff A, Stark JD (2009) Acute toxicity and hazard assessment of spinosad and R-11 to three cladoceran species and Coho salmon. Bull Environ Contam Toxicol 82:549–553
Duso C, Malagnini V, Pozzebon A, Buzzetti FM, Tirello P (2008) A method to assess the effects of pesticides on the predatory mite Phytoseiulus persimilis (Acari phytoseiidae) in the laboratory. Biocontrol Sci Tech 18:1027–1040
Finney DJ (1971) Probit analysis, 3rd edn. Cambridge University Press, Cambridge
Heckmann L-H, Callaghan A, Hooper HL, Connon R, Hutchinson TH, Maund SJ, Sibly RM (2007) Chronic toxicity of ibuprofen to Daphnia magna: effects on life history traits and population dynamics. Toxicol Lett 172:137–145
Henry CJ, Higgins KF, Buhl KJ (1994) Acute toxicity and hazard assessment of Rodeo, X-77 spreader, and Chem-Trol to aquatic invertebrates. Arch Environ Contam Toxicol 27:392–399
Herbert IN, Svendsen C, Hankard PK, Spurgeon DJ (2004) Comparison of instantaneous rate of population increase and critical-effect estimates in Folsomia candida exposed to four toxicants. Ecotoxicol Environ Saf 57:175–183
Jobling S, Sheahan D, Osborne JA, Matthiessen P, Sumpter JP (1996) Inhibition of testicular growth in rainbow trout (Oncorhynchus mykiss) exposed to estrogenic alkyphenolic chemicals. Environ Toxicol Chem 15:194–202
Jumel A, Coutellec MA, Cravedi JP, Lagadic L (2002) Nonylphenol polyethoxylate adjuvant mitigates the reproductive toxicity of fomesafen on the freshwater snail Lymnaea stagnalis in outdoor experimental ponds. Environ Toxicol Chem 21:1876–1888
Laetz CA, Baldwin DH, Hebert V, Stark JD, Scholz NL (2009) The synergistic toxicity of pesticide mixtures: implications for ecological risk assessment and the conservation of threatened Pacific salmon. Environ Health Perspect 117:348–353
Madour NS (2009) Influence of spinosad on immature and adult stages of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae). Biocontrol 54:93–102
Mann RM, Bidwell JR (2001) The acute toxicity of agricultural surfactants to the tadpoles of four Australian and two exotic frogs. Environ Pollut 114:195–205
Medina P, Budia F, Tirry L, Smagghe G, Vinuela E (2001) Compatibility of spinosad, tebufenozide and azadirachtin with eggs and pupae of the predator Chrysoperla carnea (Stephens) under laboratory conditions. Biocontrol Sci Tech 11:597–610
Purcell MF, Schroeder WJ (1996) Effects of Silwet L-77 and Diazinon on three tephritid fruit flies (Diptera: Tephritidae) and associated endoparasitoids. J Econ Entomol 89:1566–1570
SAS Institute (2002–2003) SAS user’s guide: statistics. SAS institute, Cary, NC
Scott-Dupree CD, Convoy L, Harris CR (2009) Impact of currently used or potentially useful insecticides for canola agroecosystems on Bombus impatiens (Hymenoptera: Apidae), Megachile rotundata (Hymentoptera: Megachilidae), and Osmia lignaria (Hymenoptera: Megachilidae). J Econ Entomol 102:177–182
Sibly RM (1999) Efficient experimental designs for studying stress and population density in animal populations. Ecol Apps 9:496–503
Stark JD, Banks JE (2001) Selective pesticides: are they less hazardous to the environment? Bioscience 51:980–982
Stark JD, Walthall WK (2003) Agricultural adjuvants: acute mortality and effects on population grow rate of Daphina pulex after chronic exposure. Environ Toxicol Chem 22:3056–3061
Stark JD, Tanigoshi L, Bounfour M, Antonelli A (1997) Reproductive potential: its influence on the susceptibility of a species to pesticides. Ecotoxicol Environ Saf 37:273–279
U.S. Environmental Protection Agency (1989) Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms, 2nd edn. EPA/600/4-89/001
U.S. Environmental Protection Agency (2008a) Spirotetramat pesticide fact sheet. http://www.epa.gov/opprd001/factsheets/spirotetramat.pdf
U.S. Environmental Protection Agency (2008b) Spirotetramat, pesticide tolerances. Federal Register 73, No. 132, pp 39251–39256
Walthall WK, Stark JD (1997) A comparison of acute mortality and population growth rate as endpoints of toxicological effects. Ecotoxicol Environ Saf 37:45–52
Acknowledgments
This study was supported by the Agricultural Research Center (ARC) of Washington State University. We thank Ralph Cavalieri, Associate Dean of the College of Agricultural, Human, and Natural Resource Sciences and Director of the Agricultural Research Center of Washington State University for his continued support. Thanks to Grace and Oriki Jack for their assistance with this study.
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Chen, X.D., Stark, J.D. Individual- and population-level toxicity of the insecticide, spirotetramat and the agricultural adjuvant, Destiny to the Cladoceran, Ceriodaphnia dubia . Ecotoxicology 19, 1124–1129 (2010). https://doi.org/10.1007/s10646-010-0495-y
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DOI: https://doi.org/10.1007/s10646-010-0495-y