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Abstract: Nine accessions of Abelmoschus esculentus (L.) Moench. and three of Abelmoschus moschatus Medik were both grown in Central Italy for the evaluation of the production of seeds. Furthermore, the volatiles emitted by the mature seeds were sampled by mean of SPME. Seventy compounds were detected in the headspace of the seeds of A. esculentus. The principal constituents common to all the nine accessions were isopentyl 2-methyl butanoate (24.5–59.1%) and heptanoic acid 2-methylbutyl ester (6.6–13.5%). In the headspace around the seeds of A. moschatus 93 components were detected. Among the main volatiles shared by the three accessions, n-tridecane (1.5–26.9%), isopentyl 2-methyl butanoate (0.2–14.3%) and decanal (1.6–5.7%) should be mentioned. Many differences were present in the volatiles emitted by the various accessions and between the two Abelmoschus species. [Copyright &y& Elsevier]

Highlights: [•] A quantitative LC–MS/MS method for sweet glycosides of Stevia rebaudiana was developed. [•] The method was validated according to ICH. [•] The method was applied to compare samples cultivated in Italy. [•] Samples with the highest levels of steviol glycosides were identified. [•] Results were treated by PCA, identifying genotypic differences. [ABSTRACT FROM AUTHOR]

Highlights: [•] Tea tree essential oil was tested against Ceratitis capitata and its parasitoid Psyttalia concolor. [•] Ingestion, contact and fumigation experiments were carried out in laboratory conditions. [•] The main constituents of tea tree oil were 4-terpineol (35.10%) and γ-terpinene (17.40%). [•] In laboratory assays tea tree oil was more toxic against C. capitata over P. concolor. [•] Tea tree oil could be an eco-friendly alternative to broad-spectrum insecticides in medfly IPM. [Copyright &y& Elsevier]