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Cortéz-Madrigal, Hipólito; Alatorre-Rosas, Raquel; Mora-Aguilera, Gustavo; Bravo-Mojica, Hiram; Ortiz-García, Carlos Fredy; Aceves-Navarro, Lorenzo Armando

doi:10.1023/a:1023663629826

Cited by 27 publications

(6 citation statements)

References 14 publications

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“…Also, differences in virulence on some aphid species were found among different isolates of L. lecanii (Vu et al 2007), which could probably be explained as due to differences in their physiological characteristics (Jackson . 1985;Cortez-Madrigal et al 2003;Steinkraus 2006). It was also recorded by Helen et al (2003) that A. fabae showed more susceptibility than M. persicae to the same fungus under the same temperatures.…”

Section: Discussionmentioning

confidence: 95%

Pathogenicity of the fungus Lecanicillium longisporum against Sipha maydis and Metopolophium dirhodum in laboratory conditions

Fadayivata¹,

Moravvej²,

Karimi³

2014

Journal of Plant Protection Research

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This study aimed to evaluate the susceptibility of two cereal aphids, Sipha maydis (Passerini) and Metopolophium dirhodum (Walker), to the entomopathogenic fungus, Lecanicillium longisporum (Zimm.) Zare and Gams strain LRC 190, under controlled conditions. The conidial suspension of the fungus was administered using a sprayer on the whole plant over apterous adult aphids. The results indicated that both aphid species were susceptible to L. longisporum and that aphid populations were significantly reduced, compared to the control. Nine days after treatment, the LC50 value of the fungus was obtained as 5.9 × 105 and 3.2 × 106 conidia/ml for S. maydis and M. dirhodum, respectively. The LT50 value of the fungus at a concentration of 108 conidia/ml was obtained as 2.9 and 4.4 days for S. maydis and M. dirhodum, respectively. The results demonstrated that there was a varying susceptibility to the fungus between aphid species. The estimated LC50 and LT50 indicated that L. longisporum was more virulent to S. maydis than to M. dirhodum. The LT50 and R0 decreased as the conidial concentration increased. This is the first study to demonstrate the susceptibility of S. maydis to the entomopathogenic fungi. The present study suggests that L. longisporum has high virulence against the aphids S. maydis and M. dirhodum. Further research with an emphasis on greenhouse and field tests are required, however, before making any decision about using the fungus in a control program

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Section: Discussionmentioning

confidence: 95%

Pathogenicity of the fungus Lecanicillium longisporum against Sipha maydis and Metopolophium dirhodum in laboratory conditions

Fadayivata¹,

Moravvej²,

Karimi³

2014

Journal of Plant Protection Research

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“…The lack of past interaction boosts the efficiency of EPF as the insect hosts have not developed defensive mechanisms on the new pathogen [42]. The selection of locally adapted virulent strains in agroecosystems is the initial step in commercialization and large-scale application [43][44][45]. Additionally, indigenous strains of EPF have ecological compatibility with insect pests, positive effects on the local environment, lessened pesticide residues in food, reduced risk of significant impact on non-target organisms, and increased biodiversity in managed ecosystems [46][47][48].…”

Section: Discussionmentioning

confidence: 99%

Potential Use of Fusarium Isolates as Biological Control Agents: Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Case Study

Mantzoukas

Kitsiou

Lagogiannis³

et al. 2022

Applied Sciences

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The cotton bollworm Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is a notorious agricultural pest with world-wide distribution, extreme polyphagy, high mobility and fecundity, facultative diapause, and significant resistance to chemical insecticides. Isolates from various Fusarium species were collected from soil, identified, and tested for their entomopathogenicity against H. armigera larvae in field experiments. Fungi of the genus Fusarium are ubiquitous and include phytopathogenic as well as entomopathogenic strains. Seven Fusarium species were identified and tested, including: F. algeriense, F. chlamydosporum var. chlamydosporum, F. fujikuroi, F. longifundum, F. pseudoanthophilum, F.solani, and F. tonkinense. All the collected fungi demonstrated a notable insecticidal effect on H. armigera larvae in field conditions, while some proved to be significantly lethal. The larval mortality of H. armigera ranged from 10 (103 conidia/mL) to 91% (108 conidia/mL) after 9 days (216 h). Larval survival time in treated plants ranged from 95 h (108 conidia/mL) to 208 h (103 conidia/mL). According to our results, F. solani isolate displayed the highest toxicity against H. armigera larvae and could be considered as a promising biocontrol agent of this serious pest.

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“…En este contexto, se observó que a medida que aumentaba la población de insectos, disminuía la incidencia de la roya y viceversa. La conclusión obtenida fue que, además de las condiciones ambientales, el mutualismo con insectos y otros hongos desempeñan un papel crucial en la densidad general de esporas de L. lecanii, favoreciendo así su presencia constante en el entorno (Cortez-Madrigal et al, 2003;Vandermeer et al, 2009).…”

Section: Severidad Y Porcentaje De Infestaciónunclassified

EFFECTIVENESS OF Trichoderma spp., And Lecanicillium spp., STRAINS IN THE CONTROL OF ROYA (Hemileia vastatrix Berkeley & Broome) IN COFFEE CULTIVATION IN NAYARIT, MEXICO

SÁNCHEZ-LUCIO,

GONZÁLEZ-GAONA,

PADILLA-RAMÍREZ

et al. 2024

BIOTECNIA

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La principal enfermedad del café a nivel mundial es la roya (Hemileia vastatrix), que ocasiona pérdidas hasta del 40 % en la producción. El control biológico con hongos antagonistas representa una opción de manejo compatible con el ambiente. Se aislaron y evaluaron en condiciones de campo cepas de Trichoderma y Lecanicillium nativas de la zona cafetalera de Nayarit. En general las cepas de Lecanicillium presentaron mejor desempeño que las de Trichoderma con excepción de la cepa 39 en la protección de las hojas de café contra la roya con efectividades del 80 % y reducciones en la escala de daño a 1 y 2. Por lo anterior, estas cepas representan una buena opción en el control biológico de Hemileia vastatrix, en el área de estudio. Por otra parte, si no se aplican medidas de combate los porcentajes de infestación llegan al 85 % y los niveles de daño son del 3 y 4, provocando graves pérdidas en la producción del cultivo del café.

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Untitled

Cited by 27 publications

References 14 publications

Pathogenicity of the fungus Lecanicillium longisporum against Sipha maydis and Metopolophium dirhodum in laboratory conditions

Pathogenicity of the fungus Lecanicillium longisporum against Sipha maydis and Metopolophium dirhodum in laboratory conditions

Potential Use of Fusarium Isolates as Biological Control Agents: Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Case Study

EFFECTIVENESS OF Trichoderma spp., And Lecanicillium spp., STRAINS IN THE CONTROL OF ROYA (Hemileia vastatrix Berkeley & Broome) IN COFFEE CULTIVATION IN NAYARIT, MEXICO

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