Ernesto Cerna Chávez

ORCID: 0000-0003-2263-4322
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About
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Research Areas
  • Insect-Plant Interactions and Control
  • Insect Pest Control Strategies
  • Insect Resistance and Genetics
  • Entomopathogenic Microorganisms in Pest Control
  • Plant and soil sciences
  • Insect and Pesticide Research
  • Plant Pathogens and Fungal Diseases
  • Phytoplasmas and Hemiptera pathogens
  • Nematode management and characterization studies
  • Plant Pathogens and Resistance
  • Plant-Microbe Interactions and Immunity
  • Essential Oils and Antimicrobial Activity
  • Mycotoxins in Agriculture and Food
  • Insect behavior and control techniques
  • Botanical Research and Applications
  • Banana Cultivation and Research
  • Plant Virus Research Studies
  • Agricultural pest management studies
  • Insect Utilization and Effects
  • Insect symbiosis and bacterial influences
  • Mosquito-borne diseases and control
  • Forest Insect Ecology and Management
  • Pesticide Residue Analysis and Safety
  • Cocoa and Sweet Potato Agronomy
  • Scarabaeidae Beetle Taxonomy and Biogeography

Universidad Autónoma Agraria Antonio Narro
2015-2024

Universidad Autónoma de Baja California
2023

Universities UK
2021

Benemérita Universidad Autónoma de Puebla
2016

The use of nanoparticles (NPs) has generated an alternative pest control. objective was to evaluate the insecticidal effect zinc oxide (ZnO NPs), titanium dioxide (TiO2 and their combination on Bactericera cockerelli (Hemiptera: Triozidae) second-stage nymphs under laboratory greenhouse conditions in tomato. research carried out with leaf immersion bioassay method a complete randomized design, by direct plant spraying block design; both designs, control without NPs added. Mortality recorded...

10.3390/agronomy11081460 article EN cc-by Agronomy 2021-07-22

Background/Objective. Seed extracts from Canavalia ensiformis have shown both antiparasitic and repellent effects against pests. To evaluate the effectiveness of extract combined with silicon dioxide nanoparticles (NPs) Meloidogyne incognita eggs. Materials Methods. In vitro experiments were conducted to assess C. seed extracts, alone NPs, on M. juveniles hatching. 150 eggs used, concentrations 0, 2, 4, 6, 8, 10 % applied. Additionally, at 1.5, 2.0, 2.5, 3.0 %, each NP 0.06, 0.08, 0.10,...

10.18781/r.mex.fit.2404-5 article EN Revista mexicana de fitopatología(en línea)/Revista mexicana de fitopatología 2025-01-01

Entre la dieta base de los rumiantes en México se encuentra el ensilaje maíz, que constituye 35 a 50% diaria; sin embargo, uno principales problemas su proceso elaboración es contaminación por hongos fitopatógenos, entre encuentran reportados géneros: Aspergillus spp., Fusarium Penicillium Cladosporium Trichothecium roseum., Geotruchum Altenaria Scopulariopsis spp. y Mucor Algunos estos tienen capacidad producir micotoxinas causan enfermedades muerte, tanto humanos como animales. El objetivo...

10.21640/ns.v16i33.3434 article ES cc-by Nova Scientia 2025-01-31

Se han generado acaricidas específicos para controlar T. urticae. Sin embargo, aspectos fisiológicos de este ácaro llevado a desarrollar resistencia contra estos pesticidas, uno los mecanismos involucrados, es la detoxificación mediante enzimas. En esta investigación, análisis bioquímicos se cuantificaron niveles enzimas detoxificadoras que pudieran conferir resistencia, en tres poblaciones urticae, provenientes zona productora rosas del sur Estado México. A cada población le realizaron...

10.33064/iycuaa2025945778 article ES Investigación y Ciencia de la Universidad Autónoma de Aguascalientes 2025-01-31

El insecto Bactericera cockerelli es una de las plagas más importantes en México cultivos solanáceas. Su control y manejo regularmente mediante ingredientes activos químicos. Actualmente, la agricultura, se busca mejorar eficiencia los insecticidas logrando un bajo impacto ambiental, pero con alta efectividad. objetivo presente investigación fue evaluar mortalidad ninfas B. cockerelli, bioensayos in vitro, químicos mezclados nanopartículas grafito. Los realizaron condiciones laboratorio,...

10.29059/cienciauat.v20i1.1979 article ES CienciaUAT 2025-04-10

The nematicidal effect of Canavalia ensiformis seed extract combined with silicon dioxide nanoparticles was evaluated on second instar juveniles Meloidogyne incognita, a phytopathogenic nematode that affects tomato crops. In the first experiment, concentrations were tested at 2, 4, 6, 8 and 10%, observing most effective concentration 90% mortality 24 hours. 1.5, 2.0, 2.5 3.0% 0.06, 0.08, 0.10, 0.12 0.14%, where 1.5% 0.14% nanoparticles, which showed 94% 72 These results suggest combination...

10.19136/era.a11n2.4112 article EN cc-by-nc-nd Ecosistemas y Recursos Agropecuarios 2024-06-11

The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) is the main insect pest of corn and other crops in Latin America (Hernandez-Mendoza et al. 2008). larvae cause severe damage all phenological stages plant (Villa-Castorena & Catalan-Valencia 2004). Control has been with synthetic pesticides; however, this method inefficient causes chronic poisoning to growers Mexico due incorrect use (Tinoco Halperin 1998). This led search options manage S. including natural enemies. Twenty two...

10.1653/024.094.0349 article EN Florida Entomologist 2011-09-01

Bactericera cockerelli Šulc (Hemiptera: Psylloidea: Triozidae), also known as the potato psyllid, is a pest of pepper and crops in northern Mexico. Growers control it by applying insecticides, without knowing tolerance or resistance levels to these pesticides. The goal this study was determine ratios several populations B. from regions Three were collected sample sites at Coahuila—Nuevo León, San Luis Potosí, Aguascalientes compared with laboratory susceptible line. Results indicated that...

10.1653/024.098.0322 article EN Florida Entomologist 2015-09-01

Garlic bulbs were collected in the North of Aguascalientes, Mexico. The plant pathogens isolated, purified and identified down to its species, based on taxonomic keys. Their identity was confirmed by Internal Transcribed Spacer (ITS) pathogenicity tests conducted under laboratory conditions. Fusarium proliferatum was tests. fungus isolated from bulb stem parts presenting purple reddish lesions, obtaining F. proliferatum consistently. This is first report F. proliferatum in garlic Mexico;...

10.5897/ajar12.1726 article EN African Journal of Agricultural Research 2013-02-25

La presente investigación aborda el estudio taxonómico de la familia Cleridae (Coleoptera: Cleroidea) cual se encuentra asociada a distintas actividades biológicas en los ecosistemas donde habitan, fungiendo como depredadores, necrófagos o polinizadores y cuentan con una amplia distribución ecológica México. En país han realizado investigaciones enfocadas recolecta e identificación integrantes esta escarabajos. Sin embargo, información permanece dispersa es muy antigua, lo su vez no permite...

10.53749/fem.2024.10.01 article ES cc-by-nc-sa Folia entomológica mexicana 2024-02-01

One of the important domestic insects that transmit many pathogens to environment is Periplaneta Americana . The control methods this insect are often ineffective and have caused resistance in these insects. purpose present study was investigate effects contact feeding lethality titanium nanoparticles on In study, different concentrations were prepared for oral treatments P

10.51847/ouuopwl7er article EN Entomology and Applied Science Letters 2024-01-01

El objetivo fue identificar las especies de trips depredadoras asociadas al cultivo del aguacate en el Estado Nayarit. trabajo se llevó a cabo cuatro huertas cultivar Hass y una con los cultivares Choquette Hall. Se realizaron muestreos semanales enero diciembre 2008, utilizando técnicas muestreo derribo redeo. determinaron 294 hábitos depredadores, resultando 16 especies. Franklinothrips vespiformis la especie más representada (21.8 %), seguida Leptothrips primigenus (21.4%), F. orizabensis...

10.21829/azm.2011.271738 article ES cc-by-nc-sa ACTA ZOOLÓGICA MEXICANA (N S ) 2011-04-10

Plutella xylostella es una plaga de las más importantes en los cultivos brassicaceas alrededor del mundo. El indoxacarb se utiliza ampliamente para el control larvas lepidópteros plaga. Este insecticida presenta actividad lenta y efectos residuales prolongados cuales impactan hábitos la fisiología plagas. Como objetivo estableció evaluación efecto concentraciones subletales biología tiempo desarrollo palomilla dorso diamante. Se realizó presión selección sobre P. xylostella,...

10.19136/era.a11n1.3888 article ES cc-by-nc-nd Ecosistemas y Recursos Agropecuarios 2024-01-30

Abstract During mass rearing, adaptation of biological control agents to the rearing environment is a potential problem. Using parasitoid wasp T richogramma pretiosum , performance 26 highly inbred lines, five composite ‘populations’ (created from lines) and one insectary‐reared population was compared using fertility life tables. Of populations, three were created with maximal identical genetic variation as mixture all but these then reared for different number generations (2, 6 or 17)...

10.1111/jen.12073 article EN Journal of Applied Entomology 2013-08-06

Los agentes de control biológico, juegan un papel sustancial en la disminución del número poblacional muchas especies insectos plaga. Sin embargo, el método químico es más usado los diferentes esquemas producción. Por lo que combinación biológico con uso plaguicidas piedra angular para integrado plagas. tanto esencial conocer efectos letales y subletales insecticidas sobre enemigos naturales maximizar compatibilidad entre estas dos tácticas. Para ello se determinó CL50 abamectina,...

10.3958/059.040.0315 article ES Southwestern Entomologist 2015-09-01

El ajo en México es uno de los cultivos hortalizas más rentables, del 83% esta superficie aportada por estados Zacatecas, Guanajuato, Sonora, Puebla, Baja California y Aguascalientes. La pudrición basal ocasionada Fusarium spp. se encuentra ampliamente distribuida a nivel mundial; enfermedad ha convertido una limitante zonas productoras cebolla ajo, no solo México, sino también otros países, En informado la presencia oxysporum plantas Guanajuato semillas el estado Morelos reportado culmorum...

10.1016/j.ram.2016.04.003 article ES cc-by-nc-nd Revista Argentina de Microbiología 2016-07-01

<p><em>Meloidogyne incognita</em> is one of the main biological agents that affects tomato production, alternatives to chemical pesticides are currently being evaluated, looking for compounds nematode control. The objective study was evaluate nematicidal activity limonene, allyl isothiocyanate, eucalyptol (2000, 1000, 500, 250, 100 and 0 ppm), β-citronellol (200, 100, 50, 25, 10, ppm) azadirachtin (12000, 10000, 8000, 6000, 4000, on J2 <em>M. incognita</em>....

10.56369/tsaes.2895 article EN cc-by Tropical and Subtropical Agroecosystems 2019-11-16

In Mexico, the main states for garlic (Allium sativum L.) production are Zacatecas, Guanajuato, and Puebla. 2020 crop season, cultivation encompassed 6,794 ha, yielding 85,505 tons (SIAP, 2021). February 2020, 35 samples showing basal rot symptoms were collected from garlic-growing regions in of Zacatecas Aguascalientes municipalities San Antonio Tepezala 22°13'13.5''N, 102°15'55.3''W, Rincón de Romos 22°17'44.9''N, 102°13'06.8''W, Calera 22°58'39.4''N 102°41'29.9W, respectively. The...

10.1094/pdis-12-22-2853-pdn article EN Plant Disease 2023-07-07

Symptoms of Tar Spot Complex (TSC) in corn appear the form black spots surrounded by a chlorotic halo known as fish-eye. The crop with these symptoms was found at San Pablo Autopan, Estado de Mexico. stromal region foliar lesions cut longitudinally, showing perithecia, asci and ascospores typical Phyllachora maydis. results were confirmed PCR-ITS ITS 1 ITS4 initiators, cloned pJET, before being sequenced compared against NCBI’s data base. identity confirmed. This is first report where TSC...

10.4236/ajps.2016.75067 article EN American Journal of Plant Sciences 2016-01-01

Potato psyllid, Bactericera cockerelli (Sulcen), nymphs were treated with extracts of Annona muricata L., Carica papaya Euphorbia dentate Michx, Thuja occidentalis Sapindus saponaria and Azadirachta indica A. Juss. (neem) as a commercial check in the laboratory. At 72 hours, most potato psyllid died (98 100% mortalities) from extract seeds, at concentrations 2,500 5,000 ppm, respectively, followed by oil that caused 91 mortality 2,000 respectively. seed was effective insecticide study.

10.3958/059.036.0203 article EN Southwestern Entomologist 2011-06-01

The biological control used for the of Tetranychus urticae (Koch) is predator mite Phytoseiulus persimilis (Athias-Henriot). It important to know effects acaricides on behavior Abamectin functional response P. persimilis. was type II exposed concentration Abamectin, parameters: successful attack rate (a'), handling time (Th), search efficiency and maximum predation theory (T/Th) were affected by acaricide. spends more in persecute, dominate, consume prepair it self next searching comparing...

10.1590/1519-6984.180184 article EN cc-by Brazilian Journal of Biology 2018-08-04

The functional response of the third instar larvae Chrysoperla carnea (Stephens) on densities Trialeurodes vaporariorum (Westwood) eggs was evaluated under controlled conditions. A type Il (Holling's disk) observed. Holling and Livdahl & Stiven models gave similar values for estimating parameters Holling's disk equation; however, estimates produced by Rogers were higher. According to results obtained predation, C. has considerable potential control T. vaporariorum.

10.3958/059.038.0217 article EN Southwestern Entomologist 2013-06-01
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