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Spray deposition and chemical control of the coffee leaf-miner with different spray nozzles and auxiliary boom

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dc.contributor.author Gitirana Neto, Jefferson
dc.contributor.author Cunha, João P. A. R. da
dc.date.accessioned 2018-12-20T10:40:09Z
dc.date.available 2018-12-20T10:40:09Z
dc.date.issued 2016-07
dc.identifier.citation GITIRANA NETO, J.; CUNHA, J. P. A. R. Spray deposition and chemical control of the coffee leaf-miner with different spray nozzles and auxiliary boom. Engenharia Agrícola, Jaboticabal, v.36, n.4, p.656-663, jul./ago. 2016. pt_BR
dc.identifier.issn 1809-4430
dc.identifier.uri http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n4p656-663/2016 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/10711
dc.description.abstract The coffee crop requires great spray ability to penetrate into the plant canopy during the application of pesticides. The aim of this study was to evaluate the spray deposition on leaves of coffee plants and the chemical control of the leaf miner provided by the application of different spray nozzles, with and without the use of an auxiliary boom. The deposition on the upper, middle and lower parts of the plants and the losses to the soil were evaluated using a tracer quantified by spectrophotometer. We also evaluated the chemical control of the leaf miner, counting the larvae, after the application of the insecticides cartap and fenpropathrin. The trial was carried out in a randomized block design, with four replications, in a factorial model (2×2+1): with and without the auxiliary boom, three spray nozzles (hollow cone – MAG 02, flat fan – AD 11002 and air induction hollow cone – TVI 8002) and a control. The use of the auxiliary boom increased the deposit ion in the lower part of the plants but decreased in the middle part, besides the increase in the runoff. The different nozzles do not provided differences in the deposition, showing the technical feasibility in the use of the hollow cone nozzles with coarse droplets and flat fan. All the chemical control decreased the leaf miner population, without differentiation. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Associação Brasileira de Engenharia Agrícola pt_BR
dc.relation.ispartofseries Engenharia Agrícola;v.36, n.4, p.656-663, 2016;
dc.rights Open Access pt_BR
dc.subject Coffea arabica L. pt_BR
dc.subject Leucoptera coffeella pt_BR
dc.subject Spray pt_BR
dc.subject Application technology pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Spray deposition and chemical control of the coffee leaf-miner with different spray nozzles and auxiliary boom pt_BR
dc.type Artigo pt_BR

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