Insecticidal Activity of Nanoparticles and Mechanism of Action

Saranya, S.; Selvi, A.; Babujanarthanam, Ranganathan; Rajasekar, Aruliah; Madhavan, Jagannathan

doi:10.1007/978-981-15-1702-0_12

Cited by 8 publications

(2 citation statements)

References 92 publications

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“…By manipulating particle size and surface area, SNPs can exhibit higher absorption, increase the efficacy of new insecticide formulations, and reduce the amount of insecticide required for pest control [22]. Nanoparticles are known for their insecticidal properties; they interact with the cell membranes of the insects, causing the denaturation of organelles and enzymes, oxidative stress, and cell death [23,24].…”

Section: Introductionmentioning

confidence: 99%

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

Araujo-Yépez,

Tigrero-Salas,

Delgado-Rodríguez

et al. 2023

Beilstein J. Nanotechnol.

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The purpose of this research was to synthesize nanocomposites consisting of sulfur nanoparticles coated with eucalyptus and rosemary essential oils to determine the insecticidal effect in the control of nymphs of paratrioza (Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)) in potato crops. A solution of thiosulfate was reduced to elemental sulfur, and the sulfur nanoparticles were coated with eucalyptus and rosemary essential oils with the three concentrations of 0.25%, 0.5%, and 0.75%. The samples were characterized by UV–visible spectroscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and scanning electron microscopy. The insecticidal efficacy of the nanocomposites was evaluated in the entomology laboratory 24, 48, and 72 h after application. Furthermore, efficacy was compared to the commercial insecticide thiamethoxam (0.25%) and a control. The results show that eucalyptus nanocomposites with oil concentrations of 0.25%, 0.5%, and 0.75% and rosemary nanocomposites with an oil concentration of 0.5% have an insecticidal efficacy of 100% for the control of insect nymphs 24 h after application. The insecticidal efficacy of rosemary nanocomposites with oil concentrations of 0.25% and 0.75% increases over time and reaches 100% at 24 and 72 h, respectively. The synthesized nanocomposites are more effective in controlling nymphs of paratrioza than the commercial insecticide thiamethoxam; thus, they could be used for the development of new insecticides.

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Section: Introductionmentioning

confidence: 99%

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

Araujo-Yépez,

Tigrero-Salas,

Delgado-Rodríguez

et al. 2023

Beilstein J. Nanotechnol.

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“…Nanoparticles are known insecticidal properties, interacting with the cell membrane of the insect [23]. Causing the denaturation of organelles and enzymes, oxidative stress and cell death [24].…”

mentioning

confidence: 99%

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)

Araujo¹,

Tigrero²,

Delgado³

et al. 2023

Preprint

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The purpose of this research was to synthesize nanocomposites formed by sulfur nanoparticles, coated with eucalyptus and rosemary essential oil. To determinate the insecticidal effect in the control of nymphs of paratrioza (Bactericera cockerelli Sulc) in potato crops. A solution of thiosulfate was reduced to zero valent sulfur, the sulfur nanoparticles were coated with eucalyptus and rosemary essential oil at three concentrations: 0.25%, 0.5% and 0.75%. The samples were characterized by UV-visible spectroscopy, energy dispersive spectroscopy, transmission electron microscopy and scanning electron microscopy. Insecticidal efficacy was evaluated at 24, 48 and 72 hours after application. Furthermore, efficacy was compared versus the commercial insecticide thiamethoxam 0.25% and a control. The results show that eucalyptus nanocomposites at concentrations: 0.25%, 0.5% and 0.75% and rosemary nanocomposites at concentration of 0.5%, have an insecticidal efficacy of 100% for the control of insect nymphs 24 hours after application. While the insecticidal efficacy of rosemary nanocomposites at concentrations of 0.25% and 0.75% increases over time, reaching 100% at 24 and 72 hours respectively. The synthesized nanocomposites are more effective in controlling nymphs of paratrioza than the commercial insecticide thiamethoxam. Could be used for the development of new insecticides.

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