Toxicity of citronella essential oil and its nanoemulsion against the sawtoothed grain beetle Oryzaephilus surinamensis (Coleoptera: Silvanidae)

Gharsan, Fatehia Nasser; Kamel, W.M.; Alghamdi, Tariq Saeed; Alghamdi, Azla Aedh; Althagafi, Abeer Olayana; Aljassim, Fatima Jasim; Alghamdi, Sameera A.

doi:10.1016/j.indcrop.2022.115024

Cited by 19 publications

(8 citation statements)

References 39 publications

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“…On the other hand, Nakahara et al 16 presented primary constituents of geranyl acetate, trans -citral, geraniol, cis -citral, citronellal, and citronellol. However, numerous aspects such as climatic, seasonal, genetic variations, and harvest stage can affect the chemical constituents of EOs 36 . Also, Kaur et al 14 reported that citronella EO chemical composition varies with environmental factors, climatic conditions, and harvest time.…”

Section: Resultsmentioning

confidence: 99%

“…The suitable condition of CEO nano-formulation was 4 °C without increased droplet size for 28 days 27 . Gharsan et al 36 also fabricated citronella nanoemulsions with a nonionic surfactant (Tween 80) and determined that droplet stability is because the surfactant reducing the free interface energy, which provides a mechanical barrier to the incorporation. In addition, the reduced droplet size could enhance EO solubility, which would also increase solution stability.…”

Section: Resultsmentioning

confidence: 99%

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Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide

Somala,

Laosinwattana,

Chotsaeng

et al. 2023

Sci Rep

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A natural herbicide nanoemulsion was fabricated from citronella (Cymbopogon nardus L.) essential oil (CEO) and a nonionic surfactant Tween 60 mixed with Span 60 at hydrophilic-lipophilic balance 14 using a microfluidization method. The main constituents of CEO were citronellol (35.244%), geraniol (21.906%), and citronellal (13.632%). CEO nanoemulsion droplet size and polydispersity index (PI) were evaluated by dynamic light scattering (DLS). The smallest droplet size (33.2 nm, PI 0.135) was obtained from a microfluidizer at 20,000 psi, 7 cycles. Nanoemulsion droplet in transmission electron microscopy correlated with DLS confirmed CEO to successfully produce nanoemulsion. The herbicidal activity of the nanoemulsion as a foliar spray was evaluated against Echinochloa cruss-galli and Amaranthus tricolor as representative narrow- and broadleaf weed plants, both of which presented visual toxicity symptoms. The modes of action of the nanoemulsion were then determined in terms of membrane integrity (relative electrolyte leakage; REL), malondialdehyde (MDA), and photosynthetic pigment contents. The results showed increase in REL and MDA which indicated the destruction of the treated plants; additionally, chlorophylls and carotenoid contents were decreased. Consequently, CEO nanoemulsion may have the possibility to act as a natural herbicide resource, and natural herbicides from citronella nanoemulsions could be good alternatives for use in sustainable agriculture.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide

Somala,

Laosinwattana,

Chotsaeng

et al. 2023

Sci Rep

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show abstract

“…Almadiy (2021) [76] reported a superior bioactivity of a nanoemulsion of Achillea biebersteinii on the red flour beetle when compared with the free essential oil and its main monoterpenes; likewise, Suresh et al (2020) found that the sea fennel in nanoemulsion was close to twice as bioactive than its free form [77]. In the same way, various essential oil nanoemulsions have demonstrated to be more effective against agriculture and stored food pests than the free essential oil, this is appreciated in a lower concentration requirement to neutralized 50% (LC 50 ) of arthropod population in toxicity assays [78][79][80].…”

Section: Evaluation Of Free Compound and Nanoemulsion Three Against A...mentioning

confidence: 99%

Evaluation of the Stability of a 1,8-Cineole Nanoemulsion and Its Fumigant Toxicity Effect against the Pests Tetranychus urticae, Rhopalosiphum maidis and Bemisia tabaci

Ayllón-Gutiérrez

López-Maldonado

Macías-Alonso

et al. 2023

Insects

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Pest control is a main concern in agriculture. Indiscriminate application of synthetic pesticides has caused negative impacts leading to the rapid development of resistance in arthropod pests. Plant secondary metabolites have been proposed as a safer alternative to conventional pesticides. Monoterpenoids have reported bioactivities against important pests; however, due to their high volatility, low water solubility and chemical instability, the application of these compounds has been limited. Nanosystems represent a potential vehicle for the broad application of monoterpenoids. In this study, an 1,8-cineole nanoemulsion was prepared by the low energy method of phase inversion, characterization of droplet size distribution and polydispersity index (PDI) was carried out by dynamic light scattering and stability was evaluated by centrifugation and Turbiscan analysis. Fumigant bioactivity was evaluated against Tetranychus urticae, Rhopalosiphum maidis and Bemisia tabaci. A nanoemulsion with oil:surfactant:water ratio of 0.5:1:8.5 had a droplet size of 14.7 nm and PDI of 0.178. Formulation was stable after centrifugation and the Turbiscan analysis showed no particle migration and a delta backscattering of ±1%. Nanoemulsion exhibited around 50% more bioactivity as a fumigant on arthropods when compared to free monoterpenoid. These results suggest that nanoformulations can provide volatile compounds of protection against volatilization, improving their bioactivity.

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“…Searching for more sustainable and ecologically viable alternatives, Saito and Lucchini 14 studied plants as a potential source of chemical compounds to protect agricultural production. Many plant‐derived compounds have been already studied for controlling insect pests in stored grains using various application methodologies 15‐22 . Essential oils and their constituents are alternatives to conventional insecticides due to their short persistence in the environment and low toxicity to mammals 23,24 …”

Section: Introductionmentioning

confidence: 99%

“…Many plant-derived compounds have been already studied for controlling insect pests in stored grains using various application methodologies. [15][16][17][18][19][20][21][22] Essential oils and their constituents are alternatives to conventional insecticides due to their short persistence in the environment and low toxicity to mammals. 23,24 Mustard essential oil is one of the many that have already been tested for insect control in stored grains.…”

Section: Introductionmentioning

confidence: 99%

Toxicity of allyl isothiocyanate applied in systems with or without recirculation for controllingSitophilus zeamais, Rhyzopertha dominica, andTribolium castaneumin corn grains

et al. 2023

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BACKGROUNDThe application of allyl isothiocyanate (AITC) has been proposed as an alternative to control stored‐grain insects. However, AITC is a compound with a low diffusion coefficient, making its distribution throughout the grain mass difficult. Therefore, the objective of the present study was to evaluate the effectiveness of AITC applied in systems with or without recirculation for controlling Sitophilus zeamais (Mots. 1855) (Coleoptera: Curculionidae), Rhyzopertha dominica (Fabr.) (Coleoptera: Bostrichidae), and Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) infesting a corn grain mass. The assays used a polyvinyl chloride (PVC) prototype, dimensioned 1.60 m in length, 0.30 m in diameter, and a static capacity of 60 kg of grains. AITC toxicity to insects was evaluated at the base, 0.5 m from the base, and top of the grain column (1.0 m). Different concentrations of AITC were tested for an exposure period of 48 h.RESULTSIn the system without AITC recirculation, insect mortality was verified only at the base of the grain column. However, insect mortality was considered uniform at the different positions of the column when the AITC recirculation system was adopted. In this system, there was also a marked reduction in the instantaneous population growth rate of S. zeamais, T. castaneum, and R. dominica, and a decrease in the dry matter loss of the grains, when the AITC concentrations were increased.CONCLUSIONAITC recirculation proved to be a viable strategy for protecting grains against the species S. zeamais, R. dominica, and T. castaneum. AITC fumigation ultimately did not cause changes in grain quality. © 2023 Society of Chemical Industry.

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Toxicity of citronella essential oil and its nanoemulsion against the sawtoothed grain beetle Oryzaephilus surinamensis (Coleoptera: Silvanidae)

Cited by 19 publications

References 39 publications

Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide

Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide

Evaluation of the Stability of a 1,8-Cineole Nanoemulsion and Its Fumigant Toxicity Effect against the Pests Tetranychus urticae, Rhopalosiphum maidis and Bemisia tabaci

Toxicity of allyl isothiocyanate applied in systems with or without recirculation for controllingSitophilus zeamais, Rhyzopertha dominica, andTribolium castaneumin corn grains

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