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Green Synthesis of Bimetallic Nanoparticles From Prosopis juliflora (Sw) DC., and Its Effect Against Cotton Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae)

V. Mendez-Trujillo1, B. Valdez-Salas2, M. Carrillo-Beltran2, M. A. Curiel-Alvarez2, O. Tzintzun-Camacho3, C. Ceceña-Duran3 and D. Gonzalez-Mendoza3,*

1 Facultad de Medicina de la Universidad Autónoma de Baja California, Dr. Humberto Torres Sanginés S/N, Centro Cívico, 21000, Mexicali, Baja California, México.
2 Instituto de Ingeniería de la Universidad Autónoma de Baja California, Calle de la Normal S/N y Boulevard Benito Juárez, 21100, Mexicali, Baja California, México.
3 Instituto de Ciencias Agrícolas de la Universidad Autónoma de Baja California (ICA-UABC). Carretera a Delta S/N C.P. 21705, Ejido Nuevo León, Baja California, México.

Phyton-International Journal of Experimental Botany 2019, 88(3), 269-275. https://doi.org/10.32604/phyton.2019.07316

Abstract

Phenacoccus solenopsis has been recognized as an aggressively invasive species on cotton plants in different countries. This study was conducted to investigate the effect of green synthesized Cu/Zn-nanoparticles using aqueous leaf extract of Prosopis juliflora (mezquite) against P. solenopsis. The scanning electron microscope (SEM) showed bimetallic nanoparticles of Cu/Zn-NPs with spherical shape with varying size of 74.33 nm to 59.46 nm. More than 30% mortality of P. solenopsis was observed with Cu/Zn-nanoparticles (100 ppm) at 96 hours after treatment. Negligible mortality of P. solenopsis was recorded with Cu/Zn solution (100 ppm) and aqueous P. juliflora extracts. The results of the viability test for Cu/Zn-nanoparticles of P. juliflora showed a significant reduction of the cell viability by 50% in insect exposed to Cu/Zn-nanoparticles-P.juliflora. Therefore studies about nanotoxicity of Cu/Zn-NPs of P.juliflora are needed to reveal the mechanism of toxicity this phytonanoparticles in P.solenopsis.

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Mendez-Trujillo, V., Valdez-Salas, B., Carrillo-Beltran, M., Curiel-Alvarez, M. A., Tzintzun-Camacho, O. et al. (2019). Green Synthesis of Bimetallic Nanoparticles From Prosopis juliflora (Sw) DC., and Its Effect Against Cotton Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae). Phyton-International Journal of Experimental Botany, 88(3), 269–275. https://doi.org/10.32604/phyton.2019.07316

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