Insecticidal Activity against Myzus persicae of Terpinyl Acetate and Bornyl Acetate in Thuja occidentalis Essential Oil

Abstract

Essential oils have insecticidal activity against several insects and are composed of numerous compounds. This study investigated the insecticidal effects of the Thuja occidentalis L. (Cupressaceae) essential oil, terpinyl acetate, and bornyl acetate against the peach aphid [Myzus persicae (Sulzer)]. The insecticidal effect of essential oils on three Cupressaceae plants was highest in T. occidentalis. The Thuja occidentalis essential oil was extracted by steam distillation, and the optimum conditions were found. The GC-MS profiling of essential oil components extracted from T. occidentalis leaves identified 16 volatile compounds. The main components were α-thujone (16.58%), β-myrcene (14.62%), bornyl acetate (9.31%), and terpinyl acetate (8.52%). As a result of the metabolite profiling of three Cupressaceae plants, terpinyl acetate and bornyl acetate were present in large amounts in all of the essential oils, and they had an acetate structure, so it was estimated that they had insecticidal activity. The insecticidal activity of these two compounds was stronger than the other individual monoterpene compounds. The addition of surfactants to the terpinyl acetate and bornyl acetate showed strong insecticidal activity. Terpinyl acetate and bornyl acetate can be used as environmentally friendly insecticidal-active compounds.

Exploring the Volatile Composition and Antibacterial Activity of Edible Flower Hydrosols with Insights into Their Spontaneous Emissions and Essential Oil Chemistry

“…On the other hand, 1-octene-3-ol and bornyl acetate were characteristic compounds of B. cucullata . They exhibited strong antibacterial activity, especially against Gram-positive strains [ 66 , 67 ], which could be one of the reasons why the hydrosols of this species were effective on S. aureus . Bornyl acetate is also documented for its insecticidal activity [ 68 ] and anti-inflammatory effect in human chondrocytes [ 69 ].…”

Chemical Composition and Future Perspectives of Essential Oil Obtained from a Wild Population of Stachys germanica L. Distributed in the Balkan Mountains in Bulgaria

“…It also finds application in cosmetics as an agent with antioxidant and antispotting efficiency [ 87 ]. Bornyl acetate is known for its insecticidal activity as well, which enables it to be used as an environmentally friendly repellent [ 88 , 89 ]. Although the compound presents in low concentrations in this EO, it could potentiate the anti-inflammatory and the analgesic effects of camphor.…”

A Comparison between Bulgarian Tanacetum parthenium Essential Oil from Two Different Locations

“…Due to its anti-oxidant and anti-inflammatory properties, it has been suggested as a potential therapeutic agent in the treatment of atherosclerosis [146], osteoarthritis [147], autoimmune demyelinating diseases (including multiple sclerosis) [148], and memory disorders [149]. Several studies pinpointed its insecticidal effects and possible use as an environmentally friendly biopesticide [124,125,150]. Inhalation of bornyl acetate in low doses causes a sedative effect without affecting vigilance [151].…”