Spray nozzles for application of fungicides in common bean
Keywords:application technology, diseases, Phaseolus vulgaris, yield, spray quality
common beans (Phaseolus vulgaris) are one of the staple foods for Brazilians. Production can be reduced by the action of unwanted factors, including the occurrence of diseases. In the integrated management of diseases there is the strategy of chemical control. The objective of the study was to evaluate the influence of spray nozzles on the chemical control of diseases in common bean. The experimental design used was in randomized blocks with six treatments and four replications. The treatments consisted of control (without fungicide application on bean plants) and application of fungicides with spray nozzles hollow cone jet, double flat jet, extended range flat jet, wide angle flat jet and air induction flat jet. The sprayer used was the backpack pressurized by CO2. The experiment was conducted in the region of Campos Gerais (Paraná, Brazil) during the 2016, 2017 and 2018 crop seasons. The variables analyzed were the incidence and severity of diseases, spray quality (covered area, density, and relative amplitude) and common bean yield components. It is concluded that the chemical control of fungal diseases in bean plants reduced the action of diseases and losses in productivity. There were significant changes in spraying quality in all variables analyzed. There were no differences among the nozzles regarding the analysis of incidence, severity and yield components of the bean crop.
CARNEIRO JES, PAULA JÚNIOR TJ, BORÉM A (2015) Feijão do plantio à colheita. Viçosa: Editora UFV, 2015. 384 p.
¬¬¬CHAIN A, VALARINI PJ, PIO LC (2000) Evaluation of losses in the spraying of pesticides in the bean crop. Revista de ecotoxicologia e meio ambiente, 1(10), p.13-22, http://dx.doi.org/10.5380/pes.v10i0.39659
CONAB - Companhia Nacional de Abastecimento (2018) Acompanhamento da safra brasileira de grãos. Brasília, DF: CONAB. 129p.
CUNHA JPAR, TEIXEIRA MM, VIEIRA RF (2005) Evaluation of hydraulic spray nozzles for fungicide application on common bean. Ciência Rural, 35(5), p.1069-1074, https://doi.org/10.1590/S0103-84782005000500013
CUNHA G, OLIVEIRA CAA, ALVES TC, LIMA LP, CUNHA JPAR (2020) Effect of spray nozzles and adjuvant in the pesticides application technology on bean crop. Enciclopédia Biosfera, 17(34), 205–222, https://doi.org/10.18677/EnciBio_2020D16
EPAGRI – Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (2012) Informações técnicas para o cultivo de feijão na Região Sul brasileira. Florianopolis: EPAGRI. 157p.
FANCELLI AL, DOURADO-NETO D (2007) Produção de feijão. Piracicaba: Livroceres. 386p.
GARCIA LC, MARTINS MA, FRARE IC, MELO MH, MIGLIORINI NETO E, ZARDO FILHO R, WEIRICH NETO PH, ROCHA CH, GOMES JÁ, SOUZA NM (2020) Efficiency of soybean crop fungicide spray applications at timed intervals based on a calendar schedule versus agrometeorological data. Crop Protection, 132(20), 01-07, https://doi.org/10.1016/j.cropro.2020.105128
MATTHEWS GA (2008) Developments in application technology. Environmentalist, 28(1), 19-24, https://doi.org/10.1007/s10669-007-9039-2
MATTHEWS GA, BATEMAN R, MILLER P (2014) Pesticide application methods. 4.ed. Oxford: Wiley-Blackwell. 536p.
TEEJET - TeeJet Technologies (2012) Spray products. Wheaton, IL: TeeJet. 153p.
How to Cite
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.