Increased efficacy and extended shelf life of spinosad formulated in phagostimulant granules against Spodoptera frugiperda

Tamez Guerra, Patricia y Tamayo Mejía, Fernando y Gómez Flores, Ricardo Alberto y Rodríguez Padilla, Cristina y Damas, Gabriela y Tamez Guerra, Reyes Silvestre y Ek Ramos, María Julissa y Williams, Trevor (2017) Increased efficacy and extended shelf life of spinosad formulated in phagostimulant granules against Spodoptera frugiperda. Pest Management Science, 74 (1). pp. 100-110. ISSN 1526498X

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Resumen

Abstract BACKGROUND:SpinosadisrecommendedforcontrolofSpodopterafrugiperda(J.E.Smith)larvae;itsapplicationwithphagostimulants may reduce the quantity of active ingredient required for effective pest control. Spinosad (Tracer®) was formulated inmaizeflourmatrixgranulesandthreefieldtestscompared10–100ppma.i.granules(equivalentto0.24–2.4ga.i.ha–1)with Tracerasanaqueousspray(200ppma.i.;60ga.i.ha–1),andtherecommendedapplicationratesofBacillusthuringiensis,achemicalandanuntreatedcontrolswereperformed. RESULTS:The100ppmspinosadgranulesresultedinsimilarS.frugiperdamortalitycomparedwiththechemicaltreatmentsin allthreefieldtrials,andresultedinasignificantlyhighermaizegrainyieldcomparedwithunformulatedandcontroltreatments (4141vs.2857and2407kgha–1,respectively)thatwassimilartothechemicaltreatment(3778kgha–1).Bioassaysofgranules stored at room and cold temperatures showed that after 5years, ∼ 70% of the original activity remained (OAR) of spinosad whenformulatedasgranules.Nevertheless,after9years,efficacywasreduced(26.2%and48.5%OAR)atbothroom(25∘C)and refrigeratedtemperatures(4∘C). CONCLUSION:Spinosad,inthegranularphagostimulantformulationsevaluatedinthisstudy,hadadvantagesmeasuredashigh efficacyandlongshelflife.

Tipo de elemento:	Article
Usuario depositante:	Lic. Josimar Pulido
Creadores:	Creador Email ORCID Tamez Guerra, Patricia NO ESPECIFICADO orcid.org/0000-0002-4831-2340 Tamayo Mejía, Fernando NO ESPECIFICADO NO ESPECIFICADO Gómez Flores, Ricardo Alberto ricardo.gomezfl@uanl.edu.mx NO ESPECIFICADO Rodríguez Padilla, Cristina NO ESPECIFICADO NO ESPECIFICADO Damas, Gabriela NO ESPECIFICADO NO ESPECIFICADO Tamez Guerra, Reyes Silvestre NO ESPECIFICADO NO ESPECIFICADO Ek Ramos, María Julissa maria.ekramos@uanl.edu.mx NO ESPECIFICADO Williams, Trevor NO ESPECIFICADO NO ESPECIFICADO
Fecha del depósito:	22 Ago 2019 20:04
Última modificación:	05 Mar 2024 16:06
URI:	http://eprints.uanl.mx/id/eprint/16641

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