Air-assistance in spray booms which have different spray volumes and nozzle types for chemically controlling Spodoptera frugiperda on corn
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São Paulo State University – Plant Protection Department P.O. Box 237, 18610-307 Botucatu, São Paulo, Brazil
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Marcelo Junior Gimenes
São Paulo State University – Plant Protection Department P.O. Box 237, 18610-307 Botucatu, São Paulo, Brazil
Journal of Plant Protection Research 2012;52(2):247-253
The study aimed to evaluate the performance of air assistance in spray booms using different types of nozzles and spray volumes. We took into account spray deposits, fall armyworm control and crop corn performance in a narrow row cropping system. The experiment was carried out at the experimental area of Sao Paulo State University, Botucatu/SP, Brazil, during the 2008/2009 agricultural season, in randomized blocks with a factorial scheme (2x2+1) and four replications. Two spray nozzles (flat fan nozzle and hollow cone nozzle) were tested, combined with two air assistance levels in the spray boom (with and without air assistance) and a treatment control. In the experimental spraying, Spinosad insecticide was sprayed in amounts of 48 g active substance (a.s.)/ha. The air assistance in the spray boom increased the spray deposits in the V 4 growth stage of the corn plants. Moreover, the application of this technology showed higher efficiency on fall armyworm control, reaching a 100% level 15 days after spraying, in the V 10 growth stage of the plants. The hollow cone nozzle increased the spray deposit level on the corn plants compared with the flat fan nozzle, at growth stage V 4 . However, the flat fan nozzle, combined with air assistance technology, was more effective for controlling fall armyworm in the same growth stage (V 4 ), although the hollow cone nozzle increased the deposit levels on the plants. All the technologies tested in the study promoted a reduction of plant damage from fall armyworm attack. Corn productivity is directly related to the control efficiency of fall armyworm.
The authors have declared that no conflict of interests exist.
Andrei E. 2009. Compendium of Agricultural Pesticides. 8th ed. São Paulo, 1338 pp.
Bauer F.C., Raetano C.G. 2004. Volumetric distribution of spray volume produced by spray nozzles XR, TP and TJ under different operating conditions. Planta Daninha 22 (2): 275–284.
Cooke B.K., Hislop E.C., Herrington P.J., Western N.M., Humpherson-Jones F. 1990. Air assisted spraying of arable crops, in relation to deposition, drift and pesticide performance. Crop Prot. 9 (1): 303–311.
Cruz I., Figueiredo M.L.C., Oliveira A.C., Vasconcelos C.A. 1999. Damage of Spodoptera frugiperda (Smith) in different maize genotypes cultivated in soil under three levels of aluminum saturation. Int. J. Pest Manage. 45 (2): 293–296.
Cruz I., Gonçalves E.P., Figueiredo M.L. 2002. Effect of a nuclear polyhedrosis virus on Spodoptera frugiperda (Smith) larvae, its damage and yield of maize crop. Revista Brasileira de Milho e Sorgo (RBMS) 1 (2): 20–27.
Cunha J.P.A.R., Reis E.F., Santos R.O. 2006. Chemical control of Asian soybean rust according to spray nozzles and spray volume. Ciênc. Rural 36 (5): 1360–1366.
FAO (Food and Agriculture Organization of the United Nations). 2009. FAOSTAT – Agriculture Statistics. Rome. Available from: http://www.fao.org/corp/statis.... Accessed on 9 January 2011.
Figueiredo M.L.C., Martins-Dias A.M.P., Cruz I. 2006. Effects of chlorpyrifos and its interaction with natural enemies on control of Spodoptera frugiperda (J.E. Smith, 1797), in corn crop. Revista Brasileira de Milho e Sorgo RBMS 5 (3): 325–339.
Freeman K.W., Girma K., Arnall D.B., Mullen R.W., Martin K.L, Teal R.K., Raun W.R. 2007. By-plant prediction of corn forage biomass and nitrogen uptake at various growth stages using remote sensing and plant height. Agron. J. 99 (3): 530–536.
Hammer G.L., Dong Z., Mclean G., Doherty A., Messina C., Schussler J., Zinselmeier C., Paszkiewicz S., Cooper M. 2009. Can changes in canopy and/or root system explain historical maize yield trends in the U.S. Corn Belt? Crop Sci. 49 (3): 299–312.
Henderson C.F., Tilton E.W. 1955. Tests with acaricides against the brown wheat mite. J. Econ. Entom. 48 (2): 157–161.
Köppen W. 1948. Climatology: A Study of the Earth Climates. FCE: FCE: Fondo de Cultura Económica, Mexico, 478 pp.
Lima M.P.L., Oliveira J.V., Gondim Junior M.G.C., Marques E.J., Correia A.A. 2010. Formulation Bioactivity of NIM (Azadirachta indica A. JUSS, 1797) and Bacillus thuringiensis subsp. Aizawai on Spodoptera frugiperda. Cienc. Agrotec. 34 (6): 1381–1389.
Negrisoli A.S., Garcia M.S., Negrisoli C.R.C.B., Bernadi D. 2010. Efficacy of entomopathogenic nematodes (Nematoda: Rhabditida) and insecticide mixtures to control Spodoptera frugiperda(Smith, 1797) (Lepidoptera: Noctuidae) in corn crops. Crop Prot. 29 (2): 677–693.
Ozkan H.E. 2001. Reducing drift in sprays. Bulletin 816-00. Department of Food, Agriculture and Biological Engineering. OSU. Available from: http://www.e-sprinkle.com.br/b.... Accessed on 9 January 2011.
Palladini L.A., Raetano C.G., Velini E.D. 2005. Choice of tracers for the evaluation of spray deposits. Sci.Agricola 62 (5): 440–445.
Raetano C.G., Merlin A. 2006. Technological advances in Asian soybean rust control. p. 115–138. In: “Asian Soybean Rust” (L. Zambolin, ed.). Viçosa, UFV, 390 pp.
Santiago G.P., Pádua L.E.M., Silva P.R.R., Carvalho E.M.S., Maia C.B. 2008. Effects of plant extracts in biology of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained on artificial diet. Ciênc. Agrotec. 32 (3): 792–796.
Silva M.T.B. 1999. Factors affecting the insecticides efficiency On Spodoptera frugiperda Smith in corn. Ciênc. Rural 29 (3): 383–387.
Taiz L., Zeiger E. 2009. Plant Physiology. 4th ed. Sinauer Associates, Sunderland, 848 pp.
Tomquelski G.V., Martins G.L.M. 2007. Insecticides efficiency on Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) in corn at plains region. Revista Brasileira de Milho e Sorgo (RBMS) 6 (1): 26–39.
USDA (United States Department of Agriculture). 2010. Grain: World Markets and Trade. Foreign Agricultural Service, Washington: USDA. (Circular Series), 54 pp.
Viganó L., Raetano C.G. 2007. Air-assistance and spray volume on spray deposition and red-rice control (Oryza sativa L.). Eng. Agríc. 27 (3): 734–741.
Waquil J.M. 2006. Milho: integrated pest management to the crops success. Correio Agrícola 1 (1): 6–13.
Zhu H., Brazee R.D., Derksen R.C., Fox R.D., Krause C.R., Ozkan H.E., Losely K.E. 2006. A specially designed air-assisted sprayer to improve spray penetration and air jet velocity distribution inside dense nursery crops. Am. Soc. Agric. Biol. Eng. 49 (5): 1285–1294.
Zhu H., Derksen R.C., Ozkan H.E., Reding M.E., Krause C.R. 2008. Development of a canopy opener to improve spray deposition and coverage inside soybean canopies. 2. Opener design with field experiments. Am. Soc. Agric. Biol. Eng. 51 (6): 1913–1922.
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