Data/hora: 22/06/2024 07:01:30

Biblioteca(s): | Embrapa Acre; Embrapa Agroindústria de Alimentos.
Data corrente: | 25/08/2023
Data da última atualização: | 29/08/2023
Autoria: | FAZOLIN, M.; BIZZO, H. R.; MONTEIRO, A. F. M.; LIMA, M. E. C.; MAISFORTE, N. S.; GAMA, P. E.
Afiliação: | MURILO FAZOLIN, CPAF-AC; HUMBERTO RIBEIRO BIZZO, CTAA; ANDRE FABIO MEDEIROS MONTEIRO, CPAF-AC; MARIA E. C. LIMA, UNIVERSIDADE FEDERAL DO ACRE; NATÁLIA S. MAISFORTE, INSTITUTO FEDERAL DO ACRE; PAOLA ERVATTI GAMA, CTAA.
Título: | Synergism in two-component insecticides with dillapiole against fall armyworm.
Ano de publicação: | 2023
Fonte/Imprenta: | Plants, v. 12, n. 17, 3042, Sept. 2023.
ISSN: | 2223-7747
DOI: | https://doi.org/10.3390/plants12173042
Idioma: | Inglês
Conteúdo: | The fall armyworm (Spodoptera frugiperda), a polyphagous insect pest, is a major threat to food production, rapidly spreading through all the tropical areas in the world. Resistance has developed to the control protocols used so far (pyrethroids, organophosphorus, and genetically modified plants), and alternative strategies must be found. The bioactivity in essential oils is usually associated with the major constituents, but synergistic interactions among the constituents (even minor ones) can improve the levels of activity considerably. Herein, we tested the insecticidal activity of several constituents of the essential oil from Piper aduncum, an Amazonian Piperaceae, both separately and as binary mixtures, through their application on the dorsal side of the larva pronotum. Dillapiole proved to be, isolated, the most active compound in this oil (LD50 = 0.35 ppm). In binary mixtures, a strong synergistic effect was observed for the pairs of dillapiole with &#946;-caryophyllene (LD50 = 0.03 ppm), methyl eugenol (LD50 = 0.05 ppm), and &#945;-humulene (LD50 = 0.05 ppm). In some cases, however, antagonism was recorded, as for dillapiole + &#946;-pinene (LD50 = 0.44 ppm). The use of binary mixtures of essential oil constituents as low-environmental-toxicity insecticides allows a fine tuning of the insecticidal activity, and the exploitation of synergy effects.
Palavras-Chave: | Aceites esenciales; Dilapiol; Fall armyworm; Lagarta do cartucho; Plagas de plantas; Sinergismo de los plaguicidas.
Thesagro: | Inseticida; Óleo Essencial; Pimenta de Macaco; Praga de Planta; Sinergismo; Spodoptera Frugiperda.
Thesaurus Nal: | Essential oils; Pesticide synergists; Piper aduncum; Plant pests.
Categoria do assunto: | O Insetos e Entomologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1156132/1/27498.pdf
Registro original: | Embrapa Acre (CPAF-AC)

Exemplares:

CPAF-AC - (27498-1) - UPC - AP - DD -  -  -  - DIS
CTAA - (15540-1) - UPC - AP - DD -  -  -  - DIS