Determination of Fumigant, Contact, and Repellent-Attractant Effects of Lamium purpureum L. Essential Oil on Alphitobius diaperinus (Coleoptera: Tenebrionidae)

This study was carried out to determine the fumigant, contact, and repellent effects of the essential oil obtained from Lamium purpureum L. plant growing in Balıkesir province on the poultry pest Alphitobius diaperinus (Coleoptera: Tenebrionidae). Essential oil extraction from the aerial parts of the L. purpureum plant was carried out with the Clevenger device. Services were purchased for the GC-MS analysis determination of the components of the oil obtained. Three different doses of the obtained essential oil (1000, 800, and 600 mg/L) were applied to A. diaperinus larvae in 3 different ways: fumigant, contact, and repellent-attractant. Acetone was used for the control group. The main components of the oil were determined as 2-pentadecanone, 6,10,14-trimethyl (19.35%), phytol (13.10%), and germacrene-D (5.79%). It was observed that the oil prepared at concentrations of 600, 800, and 1000 mg/L had no lethal effect on A. diaperinus larvae-* but it affected some biological properties. It was observed that 600 and 1000 mg/L applications in fumigant application and 1000 mg/L applications in contact application shorten the pre-adult periods and increase adult life span. In addition, the repellent effect of the oil was less in the experimental groups compared to the control. It shows that L. purpureum essential oil is not a direct alternative to synthetic insecticides; however, it shows that it can contribute to environment-friendly biological control strategies.