Pratyush Kumar Das¹, Satyabrata Nanda^2,*

Phyton-International Journal of Experimental Botany, Vol.93, No.12, pp. 3217-3235, 2024, DOI:10.32604/phyton.2024.057956 - 31 December 2024

Abstract Insect pests cause severe crop damage, resulting in substantial economic losses and threats to global food security. Conventional insecticides are low-cost chemical agents that kill the target insects and some non-specific beneficial organisms. Due to their toxic and non-biodegradable nature, these conventional insecticides persist in the environment, thus causing pollution and accumulating in the food chain. The development of novel insecticidal products based on double-stranded (dsRNA)-based RNA interference (RNAi) technology is a sustainable tool to effectively control insect pests. The dsRNA-based insecticides are known for their specificity, non-toxicity, and biodegradability. The current review introduces the… More >

Arnoldo E. Alfaro-Corres¹, Daniel González-Mendoza², Esaú Ruiz-Sánchez^1,*, Carlos Ail-Catzin², Benjamín Valdez-Salas³, Federico Gutiérrez-Miceli⁴, Arturo Reyes-Ramírez¹, Jacques Fils Pierre¹

Journal of Renewable Materials, Vol.11, No.11, pp. 3933-3943, 2023, DOI:10.32604/jrm.2023.031129 - 31 October 2023

Abstract This work was carried out to evaluate the insecticidal effect of mono, bi and trimetallic nanoparticles (NPs) from leaf extract of habanero pepper (Capsicum chinense Jacq.) on the red flour beetle (Tribolium castaneum herbst.) and cotton mealybug (Phenacoccus solenopsis Tinsley). The results showed that Cu NPs, Cu/Mn NPs and Zn/Cu NPs had high insecticidal effect against T. castaneum (63%–80% mortality after 96 h). The Cu NPs and Zn/Cu NPs showed also insecticidal effect against P. solenopsis, but to a lesser extent (20%–28% after 96 h). With regards to the physicochemical characterization, Cu NPs had a zeta potential of 21.1 More > Graphic Abstract

Ha ABDEL MAKSOUD¹, Mk MAHFOUZ¹, Mi SOLIMAN¹, Mohamed G ELHARRIF^2,*, M ABBASS¹, Ma EL-BADRY¹,

BIOCELL, Vol.44, No.1, pp. 111-115, 2020, DOI:10.32604/biocell.2020.08399 - 01 March 2020

Abstract Pyrethroid esters are widely used as insecticides worldwide. In this study, we aimed to evaluate the harmful effect of deltamethrin on the male reproductive system through the assessment of reproductive hormones, inflammatory markers, and testicular function. To achieve our aim, eighty male 7-9-week-old, Wistar rats were taken, weighed, and divided into four experimental groups. The first group was kept as a control group, and the other three groups were given deltamethrin orally at different concentrations (0.87, 8.7, and 17.4 mg/kg body weight) for nine weeks. The results indicated that deltamethrin administration associated with a significant More >

V. Mendez-Trujillo¹, B. Valdez-Salas², M. Carrillo-Beltran², M. A. Curiel-Alvarez², O. Tzintzun-Camacho³, C. Ceceña-Duran³ and D. Gonzalez-Mendoza^3,*

Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 269-275, 2019, DOI: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 More >

Hernandez-Trejo A¹, B Estrada-Drouaillet¹, JA López-Santillán¹, C Rios-Velasco², SE Varela-Fuentes¹, R Rodríguez-Herrera³, E Osorio-Hernández¹

Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 47-54, 2019, DOI:10.32604/phyton.2019.04611

Abstract The control of Spodoptera frugiperda is based on synthetic insecticides, so some alternatives are the use of entomopathogenic fungi (EF) and neem extract. The objective of the study was to evaluate in vitro effectiveness of native EF and neem extracts on S. frugiperda larvae. Six EF were identified by DNA sequencing of ITS regions from three EF (Fusarium solani, Metarrhizium robertsii, Nigrospora spherica and Penicillium citrinum). They were evaluated in concentrations of 1 × 10⁸ spores/ mL. In addition, a second bioassay was carried out evaluating only F. solani, M. robertsii and N. sphaerica and… More >

Cerna-Chávez E¹, Y Martínez-Martínez², J Landeros-Flores¹, L Aguirre-Uribe¹, V Sánchez-Valdes¹, M Cepeda-Siller¹, O Hernández-Bautista², YM Ochoa-Fuentes^*1

Phyton-International Journal of Experimental Botany, Vol.85, pp. 256-261, 2016, DOI:10.32604/phyton.2016.85.256

Abstract Bemisia tabaci (Gennaadius) biotype B is one of the most important pests due to the number of hosts and economic losses it produces. Its control is based on the application of chemicals, which has led to resistance problems. However, the host may also influence the induction of resistance to pesticides. Therefore, the present study evaluated the susceptibility of populations of B. tabaci biotype B developed indifferent hosts to three insecticides belonging to different toxicological groups. Bemisia tabaci biotype B populations were collected and reared in six different hosts (three crops and three associated weeds: Solanum lycopersicum, Solanum… More >

Turkyilmaz Unal B¹, A Esiz Dereboylu²

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 144-147, 2015, DOI:10.32604/phyton.2015.84.144

Abstract The aim of the study was to investigate some physiological effects of an insecticide (Akira 20-SP) with acetamiprid agent on Cin misir Adapop 10 and Sert misir Adapop 2 cultivars of corn plants in different concentrations [0 g/L, 0.6 g/L (recommended concentration), 1.2 g/L]. Photosynthetic pigment substances, total soluble protein and proline contents were determined. Analysis of treated leaves showed that the recommended concentration resulted in higher chlorophyll value in Cin misir Adapop 10 and Sert misir Adapop 2. Carotenoid amounts increased in Cin misir Adapop 10 and decreased in Sert misir Adapop 2 to More >

Cerna E, Y Ochoa, LA Aguirre, M Flores, J Landeros

Phyton-International Journal of Experimental Botany, Vol.82, pp. 63-68, 2013, DOI:10.32604/phyton.2013.82.063

Abstract Southeastern potato growing regions from Coahuila and Nuevo León contribute with 15% to domestic production. Such production has been impacted by several factors, in particular Bactericera (=Paratrioza) cockerelli Sulc potato psyllid, one of the most important pests affecting this crop. Its control is based on Insecticide applications, leading to unsatisfactory results and high selection pressure. Five insecticides were evaluated in four field populations of B. cockerelli from the growing region, using a susceptible laboratory line for comparison. The field populations were collected from greenhouse and commercial orchards located at Huachichil, Saltillo, Raíces and San Rafael localities. All… More >