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

Tamez Guerra, Patricia y Tamayo Mejía, Fernando y Gomez Flores, Ricardo y Rodríguez Padilla, Cristina y Damas, Gabriela y Tamez Guerra, Reyes S y Ek-Ramos, Maria J 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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URL o página oficial: http://doi.org/10.1002/ps.4656

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:
CreadorEmailORCID
Tamez Guerra, PatriciaNO ESPECIFICADONO ESPECIFICADO
Tamayo Mejía, FernandoNO ESPECIFICADONO ESPECIFICADO
Gomez Flores, RicardoNO ESPECIFICADONO ESPECIFICADO
Rodríguez Padilla, CristinaNO ESPECIFICADONO ESPECIFICADO
Damas, GabrielaNO ESPECIFICADONO ESPECIFICADO
Tamez Guerra, Reyes SNO ESPECIFICADONO ESPECIFICADO
Ek-Ramos, Maria JNO ESPECIFICADONO ESPECIFICADO
Williams, TrevorNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 22 Ago 2019 20:04
Última modificación: 22 Ago 2019 20:04
URI: http://eprints.uanl.mx/id/eprint/16641

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