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
|
Texto
236.pdf - Versión Publicada Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (561kB) | Vista previa |
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: |
|
|||||||||||||||||||||||||||
Fecha del depósito: | 22 Ago 2019 20:04 | |||||||||||||||||||||||||||
Última modificación: | 05 Mar 2024 16:06 | |||||||||||||||||||||||||||
URI: | http://eprints.uanl.mx/id/eprint/16641 |
Actions (login required)
Ver elemento |