RT info:eu-repo/semantics/article
T1 Macaronesian Plants as Promising Biopesticides against the Crop Pest Ceratitis capitata
A1 Tavares, Wilson R.
A1 Jiménez Díaz, Ignacio Antonio
A1 Oliveira, Luísa
A1 Kuhtinskaja, Maria
A1 Vaher, Merike
A1 Rosa, José S.
A1 Seca, Ana M. L.
A1 López Bazzocchi, Isabel
A1 Barreto, Maria do Carmo
K1 Ceratitis capitata
K1 pest control
K1 Macaronesian species
K1 ethanolic extracts
K1 Hedychium gardnerianum
K1 Salvia canariensis
K1 myricetin
K1 quercetin
K1 HPLC-MS/MS
AB Ceratitis capitata is responsible for significant economic losses in the fruit production industry,and the market lacks biopesticides that are effective but also cheaper and less contaminating, withfewer negative impacts on the environment. In this regard, the present study suggests as potentialoptions ethanolic extracts from several Macaronesian plants, which inhibit the oviposition and aretoxic to C. capitata, and whose preparation involve a non-toxic solvent (i.e., ethanol), low energyexpenditure and cheap apparatus (i.e., maceration at room temperature). Among the evaluatedspecies, the extracts of Hedychium gardnerianum, Cistus symphytifolius and Salvia canariensis are themost active (50 mg/mL), revealing an increase in C. capitata adults’ mortality from 21.15% to 27.41%after 72 h, a value statistically identical to azadirachtin (25.93%) at the recommended concentration(0.88 mg/mL). Considering the quantity and biomass available to prepare a biopesticide in thefuture, and the level of activity, the ethanolic extract of H. gardnerianum was fractionated and eachfraction tested. The water fraction at 50 mg/mL proved to be more effective than the original extract,both in terms of mortality (57.69%), with LT50 = 72.5 h, and oviposition deterrence (83.43%), valuesstatistically higher than those obtained by azadirachtin at 0.88 mg/mL. Analysis of this fractionby HPLC-MS/MS showed that it is mainly composed of glycosylated derivatives of quercetin andmyricetin in addition to some triterpenes. These findings highlight some Macaronesian species, andin particular, the more polar fraction of H. gardnerianum ethanolic extract, as promising and ecologicalalternatives to conventional insecticides, for use in the integrated management of the C. capitata pest.
YR 2023
FD 2023
LK http://riull.ull.es/xmlui/handle/915/35877
UL http://riull.ull.es/xmlui/handle/915/35877
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DS Repositorio institucional de la Universidad de La Laguna
RD 20-may-2024