%0 Journal Article
%T Repellent, Insecticidal, and Oviposition Inhibitory Effects of Nicotiana tabacum, Nicotiana rustica, and Nepeta cataria on the Trialeurodes vaporariorum
%A Souvic Sarker
%A Un Taek Lim
%J Entomology and Applied Science Letters
%@ 2349-2864
%D 2024
%V 11
%N 2
%R 10.51847/K4krev6R25
%P 30-39
%X Trialeurodes vaporarium (Westwood) is one of the important pests of ornamental, greenhouse, field, and vegetable plants worldwide. Because of the acute effects of chemical pesticides, it is necessary to investigate low-risk alternatives for the control of this pest. In this study, the insecticidal, repellent, and oviposition-inhibiting effects of ethanolic extracts of Nicotiana tabacum, Nicotiana rustica, and Nepeta cataria on adult Trialeurodes vaporarium were calculated at three concentrations (1000, 2000, and 5000 ppm) and after three times (12, 24, and 48 hours) in a factorial completely randomized design with four replications. The findings showed that the percentage of mortality increased with increasing concentration and exposure duration to the extracts. The LC50 values ​​of Nicotiana rustica, Nicotiana tabacum, and Nepeta cataria extracts were 10704, 11996, and 13989 ppm, respectively. The highest and lowest percentage of mortality was reported in Nicotiana rustica extract at a concentration of 5000 ppm and after 48 hours with 95% mortality and Nepeta cataria extract at a concentration of 1000 ppm and after 12 hours with 28.24% mortality, respectively. The effect of the extracts on egg-laying inhibition showed that as time passed and the effect of the extracts decreased, the number of eggs laid increased slowly. The results of the repellent tests showed that Nicotiana tabacum extract had the highest repellent effect of 90% after 48 hours and Nepeta cataria extract had the lowest repellent effect of 22.42% after 12 hours. Overall, the findings of the study indicated that these extracts had desirable effects and could be used as safe compounds in the integrated management program for this pest.
%U https://easletters.com/article/repellent-insecticidal-and-oviposition-inhibitory-effects-of-nicotiana-tabacum-nicotiana-rustica-3pm50somg5z7mcy