<![CDATA[This study aimed to analyze the effectiveness of ethanol extracts of basil leaves (Ocimum basilicum L.) and sweet flag rhizomes (Acorus calamus L.) as attractants and to evaluate the effect of extract concentration on fruit fly catches (Bactrocera spp.). The study was conducted in a crystal guava plantation in the Jempong Baru area of Mataram from June to August 2026. Fruit fly catches were observed using attractant traps containing ethanol extracts at concentrations of 0%, 5%, 15%, 30%, 45%, and 60%, with three replications for each treatment. The data were analyzed using a Generalized Linear Model (GLM) with a Poisson distribution, Followed by Benferroni-adjusted pairwise comparisons. A total of 296 fruit fly individuals belonging to Bactrocera dorsalis, Bactrocera umbrosa, and Bactrocera carambolae were collected. Fruit fly catches differed significantly between the two plant extracts and concentrations (p < 0.001). Basil leaf ethanol extract attracted more fruit flies than sweet flag rhizome ethanol extract, with estimated mean catches of 12.4 and 3,6 individuals, respectively. Mean fruit fly catches tended to increase with increasing extract concentration, with the highest mean catch observed at 60%. However, the 45% and 60% concentrations were not significantly different in the reported pairwise comparison. Thus, the 60% concentration produced the highest observed mean catch, but cannot be stated as an optimal concentration based solely on the present statistical comparison.]]>
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