International Journal of Agricultural Research1816-48972152-2553Academic Journals Inc.10.3923/ijar.2012.134.143Spodoptera frugiperda Management and Narrow Row Corn Performance]]>GimenesM.J. RaetanoC.G. PogettoM.H.F.A. Dal PradoE.P. RezendeD.T. ChristovamR.S. 3201273The high demand of pesticides in the production systems makes the application technology one of the main alternatives to optimize the products efficiency. In this context, the study aimed to evaluate the effects of spray nozzles and spray volumes on spraying deposits, armyworm control and crop corn performance in narrow row sowing system. The experiment was carried out at experimental area of Sao Paulo State University, Campus of Botucatu/SP, Brazil, during the 2009/2010 agricultural season, in randomized blocks with factorial scheme (2x2+1) and four replications. It was tested two flat fan spray nozzles (with and without air induction) combined with two spray volumes (100 and 200 L ha-1) plus a control treatment. There was no influence of spray nozzles (without air induction) in the spray deposits levels on plants. However, the flat fan nozzle with air induction was more effective on fall armyworm, with 100% of control against 47.84% from other at 15 days after spraying. The increase in the spray volume promoted high spray deposits (415.4 and 388.6 μL g-1 dry mass for flat fan nozzle with and without air induction, respectively at V10 growth stage) and consequently, the highest spray volume (200 L-1) was more efficient in the fall armyworm suppression, with 100% of control. All the technologies tested showed lower plant injury from fall armyworm. The insecticide sprayed with different technologies did not affect the parameters of plant height and leaf area index. The corn productivity was directly related with control efficiency of fall armyworm.]]>Andrei, E.,20098th Edn.,Pages: 1338Pages: 1338Azevedo, R., A.D. Grutzmacher, A.E. Loeck, F.F. Silva, G. Storch and M.I. Herpich,2004Spodoptera frugiperda in corn and sorghum cultivated on lowland.]]>107177Azimi, M., A.A. Pourmirza, M.H. Safaralizadeh and G. Mohitazar,2009Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) with two bioassay methods.]]>216Bauer, F.C. and C.G. Raetano,200422275284Boller, W. and M. Machry,200727722727Brasil,20092009Casa, R.T., E.N. Moreira, A. Bogo and L. Sangoi,200733353357Costa, M.A.G., A.D. Grutzmacher, J.F.S. Martins, E.C. Costa, G. Storch and G.J.S. Junior,2005Spodoptera frugiperda in corn and sorghum in low land areas.]]>3512341242Cruz, I., M.L.C. Figueiredo, A.C., Oliveira and C.A. Vasconcelos,1999Spodoptera frugiperda (Smith) in different maize genotypes cultivated in soil under three levels of aluminium saturation.]]>45293296Cunha, J.P.A.R., E.F. Reis and R.O. Santos,20063613601366Dahmardeh, M.,201164449Derksen, R.C., H. Zhu, R.D. Fox, R.D. Brazee and C.R. Krause,20075014931501Farinelli, R. and D.F. Filho,2006Spodoptera frugiperda (J E Smith, 1797) (Lepidoptera: Noctuidae) in corn plants.]]>34197202Figueiredo, M.D.L.C., A.M.P. Martins-Dias and I. Cruz,2006Spodoptera frugiperda (J.E. Smith, 1797), in corn crop.]]>5325339Gimenes, M.J., E.P. Prado, R.S. Christovam and M.H.F.A. Dal Pogetto,2010Brachiaria brizanta densities on weeds in the intercropping with corn.]]>42530Guler, H., H. Zhu, R.C. Kerksen, Y. Yu and C.R. Krause,200750745754Hammer, G.L., Z. Dong, G. Mclean, A. Doherty and C. Messina et al.,200949299312Henderson, C.F. and E.W. Tilton,195548157161Kandil, M.A., A.Y. Saleh, W.H. El Dieb and S.F. Farghaly,2008Bemisia tabaci (Homoptera: Aleyrodidae) to thiamethoxam and profenofos.]]>13338Khoramivafa, M., S.Z. Salmasi, A.D.M. Nassab, A. Javanshir and A.M. Shuti,2006Zea mays L.) and pumpkinseed (Cucurbita pepo var. styriaca) intercropping by reciprocal yield model and some competitive indices.]]>5456460Koppen, W.,1948pp: 478 pp: 478 Matthews, G.A.,20003rd Edn.,pp: 448pp: 448Miller, P.C.H., M.C.B. Ellis and A.J. Gilbert,2002661724Ishfaque, M., M. Ashfaq and A.H. Sayyed,20058567570Ozkan, H.E.,20012001Palladini, L.A., C.G. Raetano and E.D. Velini,200562440445Pauletti, V., B.M. Serrat, A.C.V. Motta, F. Nerilde and A. dos Anjos,201053563574Rashid, A., H.A. Saeed, L.H. Akhtar, S.Z. Siddiqi and M. Arshad,2003Helicoverpa armigera Hubner) on chickpea.]]>2403405Samarbakhsh, S., F. Rejali, M.R. Ardakani, F.P. Nejad and M. Miransari,2009Zea mays L.) growth and yield under field conditions.]]>9372379Taiz, L. and E. Zeiger,20064th Edn.,Zhu, H., J.W. Dorner, D.L. Rowland, R.C. Derksen and H.E. Ozkan,200487275283Zhu, H., R.D. Brazee, R.C. Derksen, R.D. Fox, C.R. Krause, H.E. Ozkan and K.E. Losely,20064912851294