Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

Almadiy, Abdulrhman A.; Nenaah, Gomah E.; Albogami, Bader Z.; Shawer, Dalia M.; Alasmari, Saeed

doi:10.3390/su15108021

Cited by 4 publications

(1 citation statement)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9 It is also a potent compound for pest control, being active as a tick killer against Ixodes scapularis 32 or insecticide against the rice weevil (Sitophuilus oryzae). 33 Finally, nootkatone (4) is an insect antifeedant and ixodicidal agent. 6 Hydrolates.…”

Section: Resultsmentioning

confidence: 99%

Valorization of the Sabinas Forest Waste (Juniperus phoenicea and Juniperus thurifera) as Source of Biopesticides

Galisteo,

Zaher,

Lopez-Menchero

et al. 2024

Natural Product Communications

View full text Add to dashboard Cite

Objectives: The potential forestry use of Juniperus phoenicea and Juniperus thurifera pruning woods is studied by analyzing the composition of the woods and testing the biological activities of the corresponding components with the ultimate target of finding new biopesticides. Methods: The air-dried wood from each plant was crushed and subjected to hydrodistillation, and the residue was extracted with a Soxhlet apparatus using different solvents. The corresponding extracts were fractionated, and their composition were studied by gas chromatography-mass spectrometry and nuclear magnetic resonance techniques. The ixodicidal and antifungal activities of the different samples obtained were evaluated. Results: The fraction oxygenated of the essential oil from both J. thurifera (cedrol >60%) and J. phoenicea shows a remarkable bioactivity as antitick with EC50 values of 3.4 μg/mg and 10 μg/mg, respectively. Cedrol and methyl hinokiate, present in the hexane extract J. thurifera, show a potent antifungal effect against Aspergillus niger with EC50 values of 45.99 and 52.23 μg/mL, respectively. Conclusions: Pruning woods from these species proved to be renewable and easily accessible sources of bioactive natural products such as cedrol, thujopsene, nootkatone, and totarol.

show abstract

Section: Resultsmentioning

confidence: 99%

Valorization of the Sabinas Forest Waste (Juniperus phoenicea and Juniperus thurifera) as Source of Biopesticides

Galisteo,

Zaher,

Lopez-Menchero

et al. 2024

Natural Product Communications

View full text Add to dashboard Cite

show abstract

Efficacy of Cupressus sempervirens essential oils against Trogoderma granarium everts (Coleoptera: Dermestidae)

Abdelkader,

Tine,

Tine-Djebbar

et al. 2024

Int J Trop Insect Sci

View full text Add to dashboard Cite

Environmentally Benign Design of Renewable Oleoresin-Bioenergized Imidacloprid Nanohydrocolloids for Improved Activity, Lower Toxicity, and Agroecological Sustainability

Iqbal,

Thirunavukkarasu,

Krishna

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Imidacloprid is a first-generation neonicotinoid that is frequently used to manage a variety of pests. Run-off problems, poor wettability, limited effectiveness, and high dosages are the main drawbacks of its current formulations, which negatively affect consumers, pollinators, and the environment. In response to all of these issues, a powerful and environmentally safe imidacloprid nanosuspension (NS) formulation is made using liquid engineering and the biosynergistic pepper oleoresin. The effects of surfactant types, concentration, sheer mixing speed, duration on particle size, and polydispersity index were thoroughly investigated using Zetasizer and scanning electron microscopy. Quality indicators including zeta potential (−36 mV), viscosity, and particle size (30 nm) were successfully modified using CIPAC principles. Oleoresin increases the viscosity while lowering the sedimentation velocity, giving the NS stability for long-term storage. On cotton whiteflies (Bemisia tabaci), the NS has shown superior effectiveness (92%), which may be attributed to its improved (30%) retention and penetration as well as a lower contact angle (37.10). GC−MS analysis found terpene-rich bioactive compounds such as limonene and caryophyllene that may have improved the insecticidal effects of imidacloprid. The NS is less detrimental (69%) to natural defenses, has minor acute toxicity to fish (LC 50 = 136.3 mg L −1 ), and exhibits low phytotoxicity. The NS reduced the detrimental effects on seed germination and growth. HPLC estimates that the reduced deposits (0.06 mg kg −1 ) on flowers make the NS 3.5 times less harmful for pollinators and more advantageous for soil microbes. Since the residual level in the NS-treated cotton seed oil was below the maximum residue limit (0.01 mg kg −1 ), the oil was determined to be safe for human consumption. Scientific validation of the production of a similar toxin in stable, effective, and safe agricultural nanoforms may increase its efficacy even at lower doses, safeguarding human and environmental health and fostering sustainable growth of green plant protection.

show abstract

Cupressus sempervirens Essential Oil, Nanoemulsion, and Major Terpenes as Sustainable Green Pesticides against the Rice Weevil

Cited by 4 publications

References 67 publications

Valorization of the Sabinas Forest Waste (Juniperus phoenicea and Juniperus thurifera) as Source of Biopesticides

Valorization of the Sabinas Forest Waste (Juniperus phoenicea and Juniperus thurifera) as Source of Biopesticides

Efficacy of Cupressus sempervirens essential oils against Trogoderma granarium everts (Coleoptera: Dermestidae)

Environmentally Benign Design of Renewable Oleoresin-Bioenergized Imidacloprid Nanohydrocolloids for Improved Activity, Lower Toxicity, and Agroecological Sustainability

Contact Info

Product

Resources

About