Rizzo Roberto, Pistillo Marco, Germinara Giacinto Salvatore, Lo Verde Gabriella, Sinacori Milko, Maggi Filippo, Petrelli Riccardo, Spinozzi Eleonora, Cappellacci Loredana, Zeni Valeria, Canale Angelo, Benelli Giovanni
CREA Research Centre for Plant Protection and Certification, SS.113, Km 245,5, 90011 Bagheria, PA, Italy.
Department of Agricultural Sciences, Food, Natural Resources and Engineering, University of Foggia, Via Napoli 25, 71122 Foggia, Italy.
Insects. 2021 Sep 29;12(10):880. doi: 10.3390/insects12100880.
Among botanical insecticides based on essential oils (EOs) or their main components, EO and the aromatic polyacetylene carlina oxide, constituting more than 90% of its EO, were recently proven to be effective against the larvae and adults of some insect vectors and pests. In this study, the toxicity of EO and carlina oxide were tested on adults using a protein bait formulation. The LC values of the EO and carlina oxide were 706 ppm and 1052 ppm, respectively. Electroantennographic (EAG) tests on adults showed that both carlina EO and oxide elicited EAG dose-dependent responses in male and female antennae. The responses to the EO were significantly higher than those to carlina oxide, indicating that other compounds, despite their lower concentrations, can play a relevant role. Moreover, Y-tube assays carried out to assess the potential attractiveness or repellency of carlina oxide LC to adults showed that it was unattractive to both males and females of , and the time spent by both sexes in either the control or the treatment arm did not differ significantly. Overall, this study points out the potential use of EO and carlina oxide for the development of green and effective "lure-and-kill" tools.
在基于精油（EOs）或其主要成分的植物源杀虫剂中，EO以及占其EO 90%以上的芳香族聚乙炔卡尔烯氧化物，最近被证明对一些昆虫媒介和害虫的幼虫及成虫有效。在本研究中，使用蛋白质诱饵制剂对成虫测试了EO和卡尔烯氧化物的毒性。EO和卡尔烯氧化物的LC值分别为706 ppm和1052 ppm。对成虫进行的触角电位（EAG）测试表明，卡尔烯EO和氧化物在雄性和雌性触角中均引发了EAG剂量依赖性反应。对EO的反应显著高于对卡尔烯氧化物的反应，这表明其他化合物尽管浓度较低，但也能发挥相关作用。此外，为评估卡尔烯氧化物LC对成虫的潜在吸引力或驱避性而进行的Y形管试验表明，它对[具体昆虫名称]的雄性和雌性均无吸引力，两性在对照臂或处理臂中花费的时间没有显著差异。总体而言，本研究指出了EO和卡尔烯氧化物在开发绿色高效“诱杀”工具方面的潜在用途。
