Chemical components and insecticidal effects of essential oils from three lavender cultivars against adult Sitophilus granarius (L., 1758) (Coleoptera: Curculionidae)

Alkan, Mustafa; Güzel, Merve; Akşit, Hüseyin; Bağdat, Reyhan Bahtiyarca; Alkan, Fatma Ruveyda; Evlice, Emre

doi:10.16970/entoted.988985

Cited by 8 publications

(4 citation statements)

References 59 publications

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“…GC/MS analysis For the GC/MS analysis, a 1.33% w/v solution of the sample in acetone was prepared and 1 µL was injected with a split mode (60:1). Gas chromatographic (GC) analyses were performed using a Thermo Scienti c Trace 1310 GC/MS system, equipped with a DB-5MS capillary column (30 m x 0.25 mm ID and 0.25 µm) according to our previous report (Alkan et al, 2021). Helium (1.2 mL/min) was used as a carrier gas.…”

Section: Methodsmentioning

confidence: 99%

Exploring the Potential of Blueberry Extracts as Natural Antifungal and Bioherbicidal Agents in Agriculture: Composition and Antioxidant Activity

Akşit,

Genç,

YILAR

et al. 2023

Preprint

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This study aims to investigate the composition of essential oils, antioxidant activity, total phenolic and flavonoid content, as well as antifungal and herbicidal activities of the methanol extract of Vaccinium myrtillus collected from two different locations. Using GC/MS analysis, the plant essential oils from Muğla and Mersin locations were found to contain 20 and 19 components, respectively. The main components identified in the essential oils from Muğla and Mersin were α-Pinene (29.16%-15.75%), Eucalyptol (22.19%-26.46%), and Linalool(12.66%-25.27%). The methanol extracts of plant collected from two different areas were tested for antifungal activity against Sclerotinia sclerotiorum (SS), Fusarium oxysporum f sp. melonis (FOM), Fusarium oxysporum f sp. cucumerinum (FOC), and Rhizoctonia solani (RS). At a dose of 3000 ppm, the extracts inhibited mycelium growth by 78.00%, 73.31%, 46.33%, and 31.43% for SS, FOM, FOC, and RS, respectively. In allelopathy tests, the methanol extract of blueberry at a dose of 3000 ppm completely suppressed root-shoot development of Taraxacum officinale, while it significantly inhibited root-shoot development of Rumex crispus seed germination compared to the control. In addition, the plant exhibited significant antioxidant activity.These findings are significant as they provide insights for the development of new natural antifungal agents with potential applications in agriculture.

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Section: Methodsmentioning

confidence: 99%

Exploring the Potential of Blueberry Extracts as Natural Antifungal and Bioherbicidal Agents in Agriculture: Composition and Antioxidant Activity

Akşit,

Genç,

YILAR

et al. 2023

Preprint

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“…The contact activity of the essential oil derived from Thymus citriodorus was assessed using the methodology described by Alkan et al (2021) in the conducted research. Consequently, the applications were topically administered using a microapplicator (Hamilton Company, PB-600, Reno, NV, USA).…”

Section: Contact Toxicity Testsmentioning

confidence: 99%

Insecticidal Effect of Thymus citriodorus (Pers.) Schreb (Lamiaceae) Essential Oil on Sitophilus granarius (Linnaeus, 1758) (Coleoptera: Dryophthoridae) and Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae)

Alkan,

Atay

2023

Turkish JAF Sci.Tech.

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In the current study, the essential oil of Thymus citriodorus (Pers.) Schreb (Lamiaceae) was evaluated for its ability to control adults of two significant pests of stored products, Sitophilus granarius (Linnaeus, 1758) (Coleoptera: Dryophthoridae) and Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae), under laboratory conditions. Using a microapplicator, test insects were exposed to 0.025, 0.05, 0.1 and 0.15 µl/insect concentrations of plant essential oil in order to assess contact toxicity. At 24, 48, 72, and 96 hours following applications, deaths were noted. The experiment revealed that, depending on the insects and dosages, the essential oil showed varying degrees of contact activity. The essential oil of T. citriodorus generally had low effect on adult T. castaneum, with the greatest effect was 15.32% at 0.15 µl/insect dose after 96 hours. Adults of S. granarius showed greater sensitivity to the essential oil of T. citriodorus. After 48 hours, doses of 0.1 and 0.15 µl/insect concentrations of the essential oil resulted in over 95% of S. granarius adult mortality. The findings of the study indicate that T. citriodorus essential oil has the potential to be used in the control of S. granarius.

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“…GC-MS analyses were conducted utilizing a Thermo Scientific Trace 1310 GC-MS system, which was outfitted with an HP-5MS capillary column (30 m x 0.25 mm and 0.25 μm ID) according to previously published methods (Aksit et al, 2022;Alkan et al, 2021). A carrier gas, helium, was employed at a constant flow rate of 1.2 mL/min in split mode with a ratio of 50:1.…”

Section: Gc-ms Analysis Conditionsmentioning

confidence: 99%

Chemical Composition and Antifungal Activity of Origanum acutidens Essential Oil Against Sclerotinia sclerotiorum (Lib.) de Bary and Phytophthora infestans (Mont.) de Bary

Bayar

Akşit

ŞİMŞEK

et al. 2023

Black Sea Journal of Agriculture

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The aim of this study was to investigate the chemical components and evaluate the antifungal activity of Origanum acutidens essential oil. The aerial parts of O. acutidens were collected, and the hydrodistillation method was used to extract the essential oil. Gas chromatography-mass spectrometry (GC-MS) analysis was performed to determine the chemical composition of the essential oil. The main components identified were α-terpineol (4.76%), p-cymene (7.6%), linalool (14.82%), and carvacrol (49.4%). The essential oils were tested against two pathogens in vitro experiments to evaluate their antifungal activity. Different concentrations of the essential oil were applied, and the inhibition of mycelial growth was measured. The results demonstrated that the essential oil exhibited antifungal properties against both pathogens. At a dose of 4.8 µL/Petri dish, mycelial growth of both pathogens was completely inhibited. However, Sclerotinia sclerotiorum showed higher tolerance to the essential oil compared to Phytophthora infestans. Furthermore, a dose-effect study was conducted as a part of this research. The LC50 values (lethal concentration at which 50% of the pathogens' growth is inhibited) for P. infestans and S. sclerotiorum were calculated as 0.982 µL/Petri and 1.61 µL/Petri, respectively. The study concluded that the essential oil of O. acutidens has the potential to be a natural antifungal agent, particularly against S. sclerotiorum and P. infestans. However, further research is needed to investigate the mechanisms of action and explore potential applications of this essential oil in managing plant diseases.

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Chemical components and insecticidal effects of essential oils from three lavender cultivars against adult Sitophilus granarius (L., 1758) (Coleoptera: Curculionidae)

Cited by 8 publications

References 59 publications

Exploring the Potential of Blueberry Extracts as Natural Antifungal and Bioherbicidal Agents in Agriculture: Composition and Antioxidant Activity

Exploring the Potential of Blueberry Extracts as Natural Antifungal and Bioherbicidal Agents in Agriculture: Composition and Antioxidant Activity

Insecticidal Effect of Thymus citriodorus (Pers.) Schreb (Lamiaceae) Essential Oil on Sitophilus granarius (Linnaeus, 1758) (Coleoptera: Dryophthoridae) and Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae)

Chemical Composition and Antifungal Activity of Origanum acutidens Essential Oil Against Sclerotinia sclerotiorum (Lib.) de Bary and Phytophthora infestans (Mont.) de Bary

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