03233naa a2200565 a 450000100080000000500110000800800410001902200140006002400370007410000160011124501440012726000090027152015680028065000270184865000190187565000180189465000250191265000180193765000230195565000160197865000330199465000330202765000120206065000200207265000220209265000150211465000200212965000150214965000260216465300230219065300270221365300340224065300170227465300140229165300130230565300180231865300160233665300280235265300240238065300230240465300100242765300220243765300340245970000220249370000230251570000200253870000170255870000230257577300690259820354032021-07-02       2016    bl uuuu     u00u1 u    #d  a0103-84787 a10.1590/0103-8478cr201415002DOI1 aFAZOLIN, M.  aSynergistic potential of dillapiole-rich essential oil with synthetic pyrethroid insecticides against fall armyworm.h[electronic resource]  c2016  aThe objective of this study was to evaluate the synergy and response homogeneity of the Spodoptera frugiperda larvae population to the Piper aduncum essential oil in combination with pyrethroid insecticides (alpha-cypermethrin, beta-cypermethrin, fenpropathrin, and gamma-cyhalothrin) compared to piperonylbutoxide (PBO) as positive control. Synergism (SF) comparisons were obtained using lethal concentration (LC50) and lethal dose (LD50) ratios of insecticides individually and in their respective synergistic combinations with essential oil and PBO. Dose/concentration-mortality slope curves were used to establish relative toxicity increase promoted by synergism. They also determined homogeneity response. Residual contact revealed significant potentiation for commercial insecticides formulated with beta-cypermethrin (SF=9.05-0.5) and fenpropathrin (SF=34.05-49.77) when combined with the P. aduncum essential oil. For topical contact, significant potentiation occurred only for alpha-cypermethrin (SF=7.55-3.68), fenpropathrin (SF=3.37-1.21), and gamma-cyhalothrin (SF=5.79-10.48) insecticides when combined with essential oil. With the exception of fenpropathrin and gamma-cyhalothrin, insecticides synergistic combinations presented homogeneous response by topical as well as residual contact at least with essential oil. The SF significance values of the P. aduncum essential oil combined with alpha-cypermethrin, beta-cypermethrin, fenpropathrin, and gamma-cyhalothrin insecticides indicated potential for this oil to be used as an alternative to PBO.  aBotanical insecticides  aEssential oils  aInsect larvae  aPesticide synergists  aPiper aduncum  aPiperonyl butoxide  aPlant pests  aInseticida de origem vegetal  aInseticida organo-sintético  aLagarta  aÓleo essencial  aPimenta de macaco  aPiperaceae  aPraga de planta  aSinergismo  aSpodoptera frugiperda  aAceites esenciales  aButóxido de piperonil  aButóxido de piperonila (PBO)  aCaterpillars  aDilapidol  aDilapiol  aHomogeneidade  aHomogeneity  aInsecticidas botánicos  aLagarta do cartucho  aLarvas de insectos  aOruga  aPlagas de plantas  aSinergismo de los plaguicidas1 aESTRELA, J. L. V.1 aMONTEIRO, A. F. M.1 aSILVA, I. M. da1 aGOMES, L. P.1 aSILVA, M. S. de F.  tCiência Rural, Santa Mariagv. 46, n. 3, p. 382-288, mar. 2016.