Droplet Spectra and Drift Potential Generated by Flat-Fan Nozzles Spraying New Formulations of 2,4-D Engineered for Drift Reduction
dc.contributor.author | Antuniassi, Ulisses R. [UNESP] | |
dc.contributor.author | Moreira, Caio A. F. [UNESP] | |
dc.contributor.author | Chechetto, Rodolfo G. | |
dc.contributor.author | Pinheiro, Ana Cristina T. C. | |
dc.contributor.author | Lucio, Felipe R. | |
dc.contributor.author | Fritz, B. K. | |
dc.contributor.author | Butts, T. R. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | AgroEfetiva | |
dc.contributor.institution | Corteva Agrisciences | |
dc.date.accessioned | 2019-10-04T11:55:34Z | |
dc.date.available | 2019-10-04T11:55:34Z | |
dc.date.issued | 2018-01-01 | |
dc.description.abstract | The aim of this work was to analyze the effect of spray solutions containing new formulations of 2,4-D choline salt (Enlist (TM) with Colex-D (TM) and Enlist Duo (TM) with Colex-D) on the droplet spectra and drift potential generated by flat-fan nozzles. The experimental design included comparisons between solutions with a single herbicide in it: 2,4-D dimethylamine salt (DMA (TM) 806 BR) and 2,4-D choline salt (Enlist with Colex-D). We also compared the premix of 2,4-D choline salt and glyphosate dimethylamine salt (Enlist Duo Colex-D) with tank mixtures of the 2,4-D dimethylamine salt with three different formulations of glyphosate (Glizmax Prime, Roundup Transorb R, and Zapp QI). Labeled rates of the herbicides were diluted to 80 L ha land sprayed with flat-fan nozzles at 2.8 bar (Teejet XR11002 and AIXR11002). The volume median diameter and the percentage of droplets smaller than 105 p.m (V105) were obtained using an online particle-size analysis system. The drift index was calculated based on data collected in a wind tunnel at a wind speed of 2.5 m s-1. The amount of drift deposited on nylon strings at 2 m downwind from the nozzle was converted to a percentage of the total volume of spray solution sprayed on each replication. The results showed that the new formulation of 2,4-D choline salt engineered for drift reduction (Enlist Colex-D) provided lower drift potential based on both the droplet spectra and the wind tunnel data compared to the standard 2,4-D dimethylamine salt. The same result was found when comparing the premix of 2,4-D choline salt and glyphosate dimethylamine salt with tank mixtures of 2,4-D dimethylamine salt with glyphosate, regardless of whether glyphosate formulation was part of the tank mixture. | en |
dc.description.affiliation | Sao Paulo State Univ, R Dr Jose Barbosa Barros 1780, BR-18610307 Botucatu, SP, Brazil | |
dc.description.affiliation | AgroEfetiva, R Pinheiro Machado 689, BR-18600180 Botucatu, SP, Brazil | |
dc.description.affiliation | Corteva Agrisciences, Alameda Itapecuru 506, BR-06454080 Barueri, SP, Brazil | |
dc.description.affiliationUnesp | Sao Paulo State Univ, R Dr Jose Barbosa Barros 1780, BR-18610307 Botucatu, SP, Brazil | |
dc.format.extent | 1-10 | |
dc.identifier | http://dx.doi.org/10.1520/STP161020170182 | |
dc.identifier.citation | Pesticide Formulation And Delivery Systems: 38th Volume, Innovative Application, Formulation, And Adjuvant, Technologies. West Conshohocken: Astm International, v. 1610, p. 1-10, 2018. | |
dc.identifier.doi | 10.1520/STP161020170182 | |
dc.identifier.issn | 0066-0558 | |
dc.identifier.uri | http://hdl.handle.net/11449/184169 | |
dc.identifier.wos | WOS:000453650400001 | |
dc.language.iso | eng | |
dc.publisher | Astm International | |
dc.relation.ispartof | Pesticide Formulation And Delivery Systems: 38th Volume, Innovative Application, Formulation, And Adjuvant, Technologies | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | glyphosate | |
dc.subject | 2,4-D choline salt | |
dc.subject | formulations | |
dc.subject | wind tunnel | |
dc.subject | nozzles | |
dc.title | Droplet Spectra and Drift Potential Generated by Flat-Fan Nozzles Spraying New Formulations of 2,4-D Engineered for Drift Reduction | en |
dc.type | Trabalho apresentado em evento | |
dcterms.rightsHolder | Astm International |