Title:	Synergistic potential of dillapiole-rich essential oil with synthetic pyrethroid insecticides against fall armyworm.
Authors:	FAZOLIN, M. ESTRELA, J. L. V. MONTEIRO, A. F. M. SILVA, I. M. da GOMES, L. P. SILVA, M. S. de F.
Affiliation:	MURILO FAZOLIN, CPAF-AC; Joelma Lima Vidal Estrela; ANDRE FABIO MEDEIROS MONTEIRO, CPAF-AC; Iriana Maria da Silva, Uninorte; Luiara Paiva Gomes, Uninorte; Maria Samylla de Farias Silva, Uninorte.
Date Issued:	2016
Citation:	Ciência Rural, Santa Maria, v. 46, n. 3, p. 382-288, mar. 2016.
Description:	The 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.
Thesagro:	Pimenta de macaco Praga de planta Lagarta Spodoptera frugiperda Piperaceae Óleo essencial Inseticida de origem vegetal Inseticida organo-sintético Sinergismo
NAL Thesaurus:	Plant pests Piper aduncum Insect larvae Essential oils Botanical insecticides Pesticide synergists Piperonyl butoxide
Keywords:	Lagarta do cartucho Caterpillars Oruga Homogeneidade Homogeneity Dilapiol Dilapidol Butóxido de piperonila (PBO) Butóxido de piperonil Sinergismo de los plaguicidas Aceites esenciales Insecticidas botánicos Larvas de insectos Plagas de plantas
ISSN:	0103-8478
DOI:	10.1590/0103-8478cr20141500
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AC)