Consulta: subjectFacets:"Entomopathogenic fungi"
Registros recuperados: 36
Data/hora: 02/06/2024 13:23:38

Selección de aislamientos de hongos etomopatógenos para el control de cochinilla rosada del hibisco Maconellicoccus hirsutus Green.
Provedor de dados: 32
Autores: Ibarra Cortés, Karla Haydeé.
La cochinilla rosada del hibisco (CRH), Maconellicoccus hirsutus, es una  plaga importante a nivel mundial que afecta diversos cultivos. Las estrategias más usadas para su control son el  químico, y el biológico mediante parasitoides y depredadores. Sin embargo, el uso de hongos entomopatógenos a pesar de ser una herramienta muy importante, ha sido muy poco estudiado. Con base en esto, diversos experimentos fueron realizados para seleccionar un aislamiento para el control de esta plaga. Se estudió el efecto de la temperatura (15, 20, 25 y 30 °C) en el desarrollo in vitro de 16 aislamientos de las especies Beauveria bassiana, Metarhizium anisopliae, Lecanicillium lecanii y Paecilomyces fumosoroseus. Posteriormente, se estimó la susceptibilidad de ninfas de...
Palavras-chave: CRH; Hongos entomopatógenos; Desarrollo in vitro; Susceptibilidad; PHM; Entomopathogenic fungi; In vitro development; Susceptibility; Maestría; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/417

Cebos para el econtrol de la cucaracha alemana Blatella germanica (Dictyoptera: Blattellidae) formulados con hongos entomopatógenos y ácido bórico.
Provedor de dados: 32
Autores: Hernández Ramírez, Gabriela.
Blattella germanica (Dictyoptera: Blattellidae) es la especie más importante de las cucarachas sinantrópicas en el mundo. En este trabajo se evaluó la patogenicidad de aislamientos de Metarhizium anisopliae, M. pingshaense y Beauveria bassiana en ninfas y adultos de B. germanica. Para ofrecer una alternativa al uso de insecticidas en el manejo de B germanica, se desarrolló una formulación de cebo en polvo y pellet. Se determinó la preferencia de adultos de esta cucaracha, a diferentes dosis  de azúcar glas (0.125, 0.25, 0.5, 0.75M) como fagoestimulante y se evaluó la compatibilidad del ácido bórico con los hongos M anisopliae y B bassiana en estos cebos. Finalmente, se evaluó vía oral, la virulencia de cebos formulados con azúcar glas 0.5 M, ácido bórico...
Palavras-chave: Cucaracha alemana; Hongo entomopatógeno; Plagas urbanas; Virulencia; German cockroach; Entomopathogenic fungi; Pathogenicity; Urban pest; Entomología y Acarología; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1867

Exploración de enemigos naturales nativos de Rhagoletis pomonella Walsh, (Díptera: Tephritidae) en tejocote Crataegus spp. en comunidades del centro de México.
Provedor de dados: 32
Autores: Muñiz Reyes, Erica.
El manejo del tefrítido Rhagoletis pomonella en zonas productoras de tejocote Crataegus spp. en México, se realiza bajo un esquema convencional basado en el uso de insecticidas químicos. Es importante considerar una transición agroecológica, que comience por la unidad productiva, para lo cual es esencial la participación de los productores agrícolas involucrados. La inclusión de la investigación social en este estudio permitió conocer la manera en la que los productores enfrentan el problema fitosanitario en este cultivo y las expectativas que tienen al respecto. Con base en lo anterior, se propuso buscar los enemigos naturales nativos con potencial de uso en el control biológico de R. pomonella que apoye la estrategia de conservación en los huertos. Se...
Palavras-chave: Moscas de la fruta; Organización campesina; Asociación de cultivos; Control biológico; Parasitoides; Hongos entomopatógenos; Patogenicidad; Fruit fly; Farmer organization; Crop association; Biological control; Parasitoids; Entomopathogenic fungi; Pathogenicity; Doctorado; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/530

Selección de aislamientos de hongos etomopatógenos para el control de cochinilla rosada del hibisco Maconellicoccus hirsutus Green.
Provedor de dados: 32
Autores: Ibarra Cortés, Karla Haydeé.
La cochinilla rosada del hibisco (CRH), Maconellicoccus hirsutus, es una  plaga importante a nivel mundial que afecta diversos cultivos. Las estrategias más usadas para su control son el  químico, y el biológico mediante parasitoides y depredadores. Sin embargo, el uso de hongos entomopatógenos a pesar de ser una herramienta muy importante, ha sido muy poco estudiado. Con base en esto, diversos experimentos fueron realizados para seleccionar un aislamiento para el control de esta plaga. Se estudió el efecto de la temperatura (15, 20, 25 y 30 °C) en el desarrollo in vitro de 16 aislamientos de las especies Beauveria bassiana, Metarhizium anisopliae, Lecanicillium lecanii y Paecilomyces fumosoroseus. Posteriormente, se estimó la susceptibilidad de ninfas de...
Palavras-chave: CRH; Hongos entomopatógenos; Desarrollo in vitro; Susceptibilidad; PHM; Entomopathogenic fungi; In vitro development; Susceptibility; Maestría; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/417

Exploración de enemigos naturales nativos de Rhagoletis pomonella Walsh, (Díptera: Tephritidae) en tejocote Crataegus spp. en comunidades del centro de México.
Provedor de dados: 32
Autores: Muñiz Reyes, Erica.
El manejo del tefrítido Rhagoletis pomonella en zonas productoras de tejocote Crataegus spp. en México, se realiza bajo un esquema convencional basado en el uso de insecticidas químicos. Es importante considerar una transición agroecológica, que comience por la unidad productiva, para lo cual es esencial la participación de los productores agrícolas involucrados. La inclusión de la investigación social en este estudio permitió conocer la manera en la que los productores enfrentan el problema fitosanitario en este cultivo y las expectativas que tienen al respecto. Con base en lo anterior, se propuso buscar los enemigos naturales nativos con potencial de uso en el control biológico de R. pomonella que apoye la estrategia de conservación en los huertos. Se...
Palavras-chave: Moscas de la fruta; Organización campesina; Asociación de cultivos; Control biológico; Parasitoides; Hongos entomopatógenos; Patogenicidad; Fruit fly; Farmer organization; Crop association; Biological control; Parasitoids; Entomopathogenic fungi; Pathogenicity; Doctorado; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/530

Detection of Metarhizium anisopliae var. anisopliae within infected sugarcane borer Diatraea saccharalis (Lepidoptera, Pyralidae) using specific primers
Provedor de dados: 74
Autores: Destéfano,Ricardo Henri Rodrigues; Destéfano,Suzete A. Lanza; Messias,Claudio Luiz.
In order to construct specific primers for the detection and identification of the entomopathogenic fungus Metarhizium within infected sugarcane borer (Diatraea saccharalis) larvae we analyzed the ITS1 -5.8S- ITS2 rDNA regions of strains and varieties of M. anisopliae, M. album and M. flavoviride. The PCR amplification of these regions yielded a unique fragment of approximately 540 bp for M. anisopliae variety anisopliae strains E9, B/Vi and C (isolated in Brazil), 600 pb for M. a. anisopliae strain 14 (isolated in Australia), 650 bp for the M. album and 600 bp for M. flavoviride strains. The PCR products were digested with different restriction endonucleases (Afa I, Alu I, Dde I, Hae III, Hpa II and Sau 3A) and the PCR-RFLP profiles showed clear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metarhizium anisopliae; Entomopathogenic fungi; PCR-RFLP; ITS region.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200020

Mixtures between Beauveria bassiana and potassium silicate to manage thrips in tomato plants for industrial processing
Provedor de dados: 75
Autores: Pereira,Alexandre Igor A; Silva,Cide M da; Curvêlo,Carmen RS; Pontes,Nadson de C; Pereira,Jardel L; Tavares,Wagner de S; Zanuncio,José C; Luz,José Magno Q.
ABSTRACT Thysanoptera species can transmit virus to Solanaceae family vegetables, including tomato plants for industrial processing, causing the disease known as Tomato Spotted Wilt Virus (TSWV). Thrips resistance to insecticides indicate the urgent need of techniques adequate for Integrate Pest Management practices. The objective was to evaluate the control efficiency (CE%) against Frankliniella schultzei (Thysanoptera: Thripidae) of the fungus Beauveria bassiana (Bb), the resistance inducer potassium silicate (KSil) and the chemical insecticide profenophos + cypermethrin (PC) isolated, or in binary mixtures. The treatments were foliar spraying on tomato plants with Bb (T1), KSil (T2) and PC (T3) isolated or in mixtures of Bb+KSil (T4), PC+KSil (T5) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frankliniella schultzei; Solanum lycopersicum; Entomopathogenic fungi; Silicon; Synergism; Tank mixture.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400415

Orthezia praelonga Douglas, 1891 (Hemiptera, Ortheziidae): biologia, controle quimico e biologico.
Provedor de dados: 14
Autores: CESNIK, R.; FERRAZ, J. M. G.
O presente trabalho tem como finalidade mostrar as pesquisas desenvolvidas com a Orthezia praelonga Douglas, 1891 e os metodos de seu controle. Entre esses, da-se enfase ao controle biologico, atraves do Colleototrichum gloeosporioides Penz., isolado da propria ortezia. Sao apresentados resultados do controle biologico feito em pomares comerciais, com pleno exito, atraves da aplicada media de um litro de inoculo de C. gloeosporioides na concentracao de 1,34 x 10 esporos por ml, para cada planta intensamente infestada por O. praleonga.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Piolho branco; Citro; Morfologia; Colletotrichum gloeosporiodes; Biologia; Controle Biológico; Controle Químico; Dano; Orthezia Praelonga; Citrus; Biological control; Chemical control; Entomopathogenic fungi.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1111012

The impact of fungicides on Nomuraea rileyi (Farlow) Samson epizootics and on populations of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae), on soybean
Provedor de dados: 82
Autores: Sosa-Gómez,Daniel R.; Delpin,Katiaíres E.; Moscardi,Flávio; Nozaki,Márcia de H.
The fungus Nomuraea rileyi (Farlow) Samson is one of the most important natural enemies of soybean caterpillars, mainly under humid weather conditions. Outbreaks of the fungus Microsphaera diffusa Cooke &amp;amp; Peck have demanded fungicide applications on soybeans, which could result in outbreaks of noctuid populations by reduction of the natural inocula of N. rileyi. The recommended fungicides have shown to be detrimental to beneficial fungi, reducing infection, delaying epizootics, and resulting in increased host population densities. In laboratory assays, benomyl, difenoconazole, sulphur and carbendazim affected conidial germination of N. rileyi, being the latter less deleterious. To assess the impact of fungicides used to control M. diffusa, on N....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungi; Difenoconazole; Benomyl; Carbendazim; Microsphaera diffusa; Biocontrol.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200014

Differential susceptibility of adults and nymphs of Blattella germanica (L.) (Blattodea: Blattellidae) to infection by Metarhizium anisopliae and assessment of delivery strategies
Provedor de dados: 82
Autores: Lopes,RB; Alves,SB.
Microbial insecticides for cockroach control, such as those containing entomopathogenic fungi, may be an alternative to reduce contamination by chemicals in housing and food storage environments. Virulence of isolate ESALQ1037 belonging to the Metarhizium anisopliae complex against nymphs and adults of Blattella germanica (L.), and its infectivity following exposure of insects to a contaminated surface or to M. anisopliae-bait were determined under laboratory conditions. Estimated LD50 15 d following topical inoculation was 2.69 x 10(5) conidia per adult, whereas for nymphs the maximum mortality was lower than 50%. Baits amended with M. anisopliae conidia had no repellent effect on targets; adult mortality was inferior to 25%, and nymphs were not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: German cockroach; Microbial control; Entomopathogenic fungi.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000300010

Molecular characterization and pathogenicity of isolates of Beauveria spp. to fall armyworm
Provedor de dados: 86
Autores: Carneiro,Andréa Almeida; Gomes,Eliane Aparecida; Guimarães,Claudia Teixeira; Fernandes,Fernando Tavares; Carneiro,Newton Portilho; Cruz,Ivan.
The objective of this work was to evaluate the pathogenicity of 24 Beauveria isolates to Spodoptera frugiperda larvae, and characterize them molecularly through rDNA-ITS sequencing and RAPD markers. Sequencing of rDNA-ITS fragments of 570 bp allowed the identification of isolates as B. bassiana or B. brongniarti by sequence comparison to GenBank. Sixty seven polymorphic RAPD fragments were capable to differentiate 20 among 24 Beauveria isolates, grouping them according to the derived host insect and to pathogenicity against maize fall armyworm larvae. Three RAPD markers were highly associated to the pathogenicity against S. frugiperda, explaining up to 67% of the phenotypic variation. Besides identification and molecular characterization of Beauveria...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spodoptera frugiperda; Entomopathogenic fungi; RAPD; RDNA-ITS.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000400010

Selection for entomopathogenic fungi and LD50 of Metarhizium anisopliae (Metsch.) Sorok. for the Lesser Mealworm Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae)
Provedor de dados: 89
Autores: Chernaki-Leffer,AM; Sosa-Gòmez,DR; Almeida,LM.
The pathogenicity of insect-pathogenic hyphomycetous isolates to the lesser mealworm Alphitobius diaperinus (Panzer) was tested in this study. Thirty isolates of Beauveria bassiana (Balsamo) Vuillemin, Paecilomyces amoenoroseus (Hennings), P. fumosoroseus (Wize) Brown &amp;amp; Smith, P. lilacinus (Thom) Samson, P. tenuipes (Petch) Samson, Metarhizium anisopliae (Metschnikoff) Sorokin, and M. anisopliae var. acridum were initially screened by sprinkling dry conidia onto adult A. diaperinus or by allowing adults to walk on Petri dishes with sporulating fungal isolates. The two most virulent isolates, CNPSo-Ma352 (M. anisopliae) and CNPSo-Ma356 (M. anisopliae), killed 30% and 26.7% of the dry-conidia treated adults, respectively. These two isolates were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alphitobius diaperinus; Bioassays; Biological control; Entomopathogenic fungi.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300008

Beauveria Bassiana Applied to Broiler Chicken Houses as Biocontrol of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae), an Avian Pathogens Vector
Provedor de dados: 89
Autores: Alves,LFA; Oliveira,DGP; Lambkin,T; Bonini,AK; Alves,V; Pinto,FGS; Scur,MC.
ABSTRACT Beauveria bassiana is naturally found in broiler chicken houses, and has been shown to be active against the lesser mealworm, Alphitobius diaperinus. The effectiveness of soil application of B. bassiana in emulsifiable oil-type formulation (Unioeste 4 isolate) to control the lesser mealworm in commercial poultry house was evaluated. The fungus was applied to the dirt floor of poultry house at 4.2 × 109 conidia/m2 (treated aviary) and the insect population was assessed before and 96, 146 and 216 days after application (DAA). In the control aviary, no treatment was performed to control those insects. Molecular techniques were used to confirm the presence of the fungus in dead A. diaperinus. Significant treatment effects were observed, with 56% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Biological control; Entomopathogenic fungi.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400459

Effect of entomopathogens on Africanized Apis mellifera L. (Hymenoptera: Apidae)
Provedor de dados: 92
Autores: Potrich,Michele; Silva,Rita T.L. da; Maia,Fabiana M.C.; Lozano,Everton R.; Rossi,Robson M.; Colombo,Fernanda C.; Tedesco,Flavia G.; Gouvea,Alfredo de.
ABSTRACT This study aimed to evaluate the effect of commercially used entomopathogens on Africanized Apis mellifera L. (Hymenoptera: Apidae). Four bioassays were performed: 1) pulverized entomopathogens on A. mellifera; 2) entomopathogens sprayed on a smooth surface; 3) entomopathogens sprayed on soy leaves; and 4) entomopathogens mixed with candy paste (sugar syrup). Five treatments were prepared: sterile distilled water (control), distilled water sterilized with Tween® 80 (0.01%), and the commercial entomopathogens Metarhizium anisopliae E9 (1.0 × 109 conidia mL−1), Beauveria bassiana PL63 (1.0 × 108 conidia mL−1) and Bacillus thuringiensis var. kurstaki HD-1 (3.0 × 108 spores mL−1). Each treatment consisted of five repetitions, with 20 workers per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bayesian statistics; Entomopathogenic fungi; Entomopathogenic bacteria; Honeybee; Selectivity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000100023

Interactions of adjuvants on adhesion and germination of Isaria fumosorosea on adults of Diaphorina citri
Provedor de dados: 63
Autores: Arnosti,André; Delalibera Junior,Italo; Conceschi,Marcos Roberto; D’Alessandro,Celeste Paola; Travaglini,Raphael Vacchi; Camargo-Mathias,Maria Izabel.
ABSTRACT: Asian citrus psyllid, Diaphorina citri, is considered the most important citrus pest worldwide, as it transmits Huanglongbing – serious citrus disease. New efficient and sustainable strategies to control this pest have been investigated and the use of entomopathogenic fungi has become a promising alternative. The objective of this study was to evaluate the effects of adjuvants a) Tween 80 at 0.01 % (v/v); b) Silwet L77 at 0.025 % (v/v) and c) KBRAdj at 0.075 % (v/v) on adhesion, germination and pathogenicity of Isaria fumosorosea ESALQ-1296(5 × 106 conidia mL–1). Female adults of D. citri used in this experiment were sprayed on Citrus limonia seedlings. The sprayed insects were analyzed through scanning electron microscopy (SEM) to identify the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Asian citrus psyllid; Entomopathogenic fungi; Formulation; Integument.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001600487

Selection of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok. for the control of the mite Mononychellus tanajoa (Bondar)
Provedor de dados: 63
Autores: Barreto,Rodrigo Soares; Marques,Edmilson Jacinto; Gondim Jr.,Manoel Guedes Corrêa; Oliveira,José Vargas de.
The green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae), is considered to be one of the key pests in cassava, Manihot esculenta Crants, leading to considerable field losses. In this study, ten Beauveria bassiana (Bals.) Vuill. and ten Metarhizium anisopliae (Metsch.) Sorok. isolates were evaluated with regard to their potential as biological control agents against adult M. tanajoa females. The total mortality percentage of M. tanajoa caused by B. bassiana ranged from 13.0 to 97.0%, with confirmed mortality rates extending from 9.0 to 91.0% and LT50 varying from 4.2 to 17.0 days. The M. anisopliae isolates showed total mortality percentages ranging from 12.0 to 45.0% with confirmed mortality rates extending from 8.0 to 45.0%, and LT50 varying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungi; Cassava green mite; Microbial control.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000600015

Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae
Provedor de dados: 63
Autores: Silva,Rodrigo Alves da; Quintela,Eliane Dias; Mascarin,Gabriel Moura; Barrigossi,José Alexandre Freitas; Lião,Luciano Moraes.
The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (strain CG 168). A conidial suspension containing the pesticide at recommended field dosage was subjected to constant agitation in a rotary shaker for 3h to simulate a tank mixing. Then, aliquots of each suspension were used to determine conidial germination, vegetative growth and conidiation on potato dextrose agar (PDA). The fungicides difenoconazole (69 mL ha-1), propiconazole (75 mL ha-1),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticide compatibility; Conidiation; Entomopathogenic fungi; Germination; Vegetative growth.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000300003

Effects of the combination of phytosanitary products and entomopathogeníc fungí for the control of ínsect pests
Provedor de dados: 109
Autores: Musso,Anahi; López Lastra,Claudia Cristina; Padin,Susana Beatriz; Minardi,,Graciela Monica; Marcondes Almeida,José Eduardo.
Abstract The combination of phytosanitary products (PPs) and entomopathogenic fungi (EF) can be used in integrated pest management (IPM) programs. The aim of the present work was to study the effects of PPs, commonly used in Argentina and Brazil, combined with Beauveria bassiana, Metarhizium anisopliae and Cordyceps (Isaria) fumosorosea, for the control of insect pests in the post-harvest of wheat, under laboratory and semi-field conditions. In vitro compatibility was assessed using the biological index (BI) based on the percentages of fungal vegetative growth, sporulation, and germination. The number of colony-forming units (CFUs) was evaluated under semi-field conditions. In all cases, PPs evaluated reduced the mean germination percentages as compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungi; Integrated pest management; Phytosanitary products; Pirimiphos methyl; Postharvest treatment.
Ano: 2022
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000200207

AMAZONIAN ISOLATES OF Metarhizium ARE EFFECTIVE FOR KILLING Bactrocera carambolae (DIPTERA: TEPHRITIDAE)
Provedor de dados: 37
Autores: BRITO,Bruna David; LIMA,Adilson Lopes; CRUZ,Kennedy Rodrigues; BARIANI,Adriana; JESUS-BARROS,Cristiane Ramos; PEREIRA,José Francisco; ADAIME,Ricardo.
ABSTRACT Bactrocera carambolae Drew &amp; Hancock is a quarantine pest present in Brazil and is the main phytosanitary barrier for the export of fresh fruits from that country. In this work, we evaluated the effect of Amazonian isolates of Metarhizium on kill larvae, pupae, and adults of B. carambolae in soil applications. The mortality of larvae and pupae in sterile soil treated with Metarhizium anisopliae was 70 %. In addition, 100 % of the adults that emerged from this substrate died up to five days later. This isolate caused the mortality of larvae and pupae in non-sterile soil, but its effect was more evident after adult emergence (70 % mortality up to ten days after emergence). Metarhizium robertsii was effective in killing larvae and pupae of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Carambola fruit fly; Entomopathogenic fungi; Fruit flies.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000100118

Consortium of five fungal isolates conditioning root growth and arbuscular mycorrhiza in soybean, corn, and sugarcane
Provedor de dados: 42
Autores: FARIAS,CHRISTYAN P.; CARVALHO,RAFAEL C. DE; RESENDE,FELIPE M.L.; AZEVEDO,LUCAS C.B.
Abstract Plant growth and arbuscular mycorrhizal colonization were studied in sugarcane, corn and soybean by applying five plant growth promoting fungi: Beauveria bassiana, Metarhizium anisopliae, Pochonia chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperella. Sugarcane, corn and soybean were grown in pots under two treatments: (1) inoculation with the fungal consortium and (2) control without inoculation. In the inoculated treatment, fungal spore suspension were applied to the seeds and shoots were sprayed every 28 days. Means were analyzed by analysis of variance and Tukey’s test at 5% probability level. The experiment was arranged in a completely randomized design, with six replications. Fungi consortium mediate root growth in soybean and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant growth promoting fungi; Entomopathogenic fungi; Arbuscular mycorrhizal; Phytohormones.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703649

Temperature and relative humidity requirements for conidiogenesis of Beauveria bassiana (Deuteromycetes: Moniliaceae)
Provedor de dados: 44
Autores: Sosa-Gómez,Daniel R.; Alves,Sérgio B.
Assays were conducted to assess the number of Beauveria bassiana (Bals.) Vuill. conidia on Diatraea saccharalis F. (Lepidoptera: Pyralidae), Nezara viridula (L.) and Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) corpses maintained at different levels of relative humidity (RH) (75%, 80%, 85%, 90% and 100%) and temperatures (22°C, 26°C, 30°C and 34°C) during five days. The isolates produced conidia when exposed to RH from 75% to 100%. Conidiogenesis was incipient at 75% RH on D. saccharalis larvae, but did not occur on N. viridula and P. guildinii. In ideal conditions of RH and during 10 days, mathematical equations were developed to estimate the number of conidia produced by isolates ARSEF 933 and ARSEF 2515. Conidia number were shown to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Nezara viridula; Diatraea saccharalis; Piezodorus guildinii; Inoculum; Entomopathogenic fungi.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300014

Temporal variability and progression of Neozygites sp. (Zygomycetes: Entomophthorales) in populations of Mononychellus tanajoa (Bondar) (Acari: Tetranychidae)
Provedor de dados: 44
Autores: Delalibera Jr.,Italo; Moraes,Gilberto J. de; Lapointe,Stephen L.; Silva,Carlos A. D. da; Tamai,Marco A.
The objective of this study was to characterize epizootics of Neozygites sp. by investigating the relationship between the pathogen, the host, Mononychellus tanajoa (Bondar) (Cassava green mite = CGM), and climatic factors. Epizootics were studied from March through October 1994 in nine cassava fields at Piritiba, state of Bahia, Brazil. In all fields the pathogen appeared when CGM density was moderate to high. Infected CGM were first detected in northwestern fields, with an apparent progression to the southeast. The onset of the epizootic in the earliest field was observed 23 days prior to the onset of the epizootic in the latest field. During the epizootic phase of most fields (late May to late June), daily mean RH ranged from 70% to 79% and daily mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cassava green mite; Entomopathogenic fungi; Epizootiology; Phytoseiidae.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300015

First report of the occurrence of Ophiocordyceps melolonthae (Ascomycota: Hypocreales: Ophiocordycipitaceae) in larvae of Diloboderus abderus Sturm (Coleoptera: Melolonthidae) in Brazil
Provedor de dados: 49
Autores: Salgado-Neto,Geraldo; Valmorbida,Ivair; Guedes,Jerson Vanderlei Carús; Blume,Elena.
This note is the first report on the infection of Diloboderus abderus Sturm (Coleoptera: Melolonthidae) larvae by the fungusOphiocordyceps melolonthae (Hypocreales: Ophiocordycipitaceae) in subtropical Brazil. Identification was made possible by extraction and sequencing of the fungal DNA that was covering the larvae’s mouthparts, prothorax, cuticle, and digestive tract (alimentary canal). Amplification, sequencing and comparison of the ITS region of the ribosomal DNA with voucher sequences of GenBank were performed and were 95% similar to Ophiocordyceps melolonthae. The fungus is an entomopathogen which attacks Melolonthidae larvae, having scientific and economic importance because of the need for increased knowledge on its distribution and on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Dissemination; Entomopathogen; Entomopathogenic fungi; Natural infection; Controle biológico; Disseminação; Entomopatógeno; Fungos entomopatogênicos; Infecção natural.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200402

Host range findings on Beauveria bassiana and Metarhizium anisopliae (Ascomycota: Hypocreales) in Argentina
Provedor de dados: 51
Autores: Toledo,A. V.; De Remes Lenicov,A. M. M.; López Lastra,C. C.
The natural insect host range of the entomopathogenic fungi (EPF) Beauveria bassiana (Bb) and Metarhizium anisopliae (Ma) was investigated in Argentina during the winter of 2003 through spring of 2004. Fungi- infected insect samples (153) were collected from cornfields and the surrounding uncultivated areas in different localities of Buenos Aires (7), Tucumán (2), and Corrientes (3) provinces. The rates of Bb-infected host range varied among the Coleoptera (37%), Hemiptera (27%) and Dermaptera (1.3%). While the rates of Ma-infected host range varied between the Coleoptera (0.7%) and Hemiptera (34%). The greater host range resulted with B. bassiana found from eight species of Coleoptera (four families), one species of Dermaptera and four species of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beauveria bassiana; Biological control; Coleoptera; Dermaptera; Hemiptera; Entomopathogenic fungi; Metarhizium anisopliae.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722008000200004

Culture media selection for mass production of Isaria fumosorosea and Isaria farinosa
Provedor de dados: 52
Autores: Mascarin,Gabriel Moura; Alves,Sérgio Batista; Lopes,Rogério Biaggioni.
This work investigated the production of the fungi Isaria fumosorosea and Isaria farinosa in biphasic fermentation using agro-industrial products and residues. Combinations of natural liquid substrates, alternative to the complete medium and potato dextrose medium, were evaluated. The best liquid media were sugarcane molasses + rice broth, rice broth + yeast and sugarcane molasses + yeast + rice broth, which resulted in the highest viable propagule concentration. The molasses + rice broth medium was selected for the next phase of the study in which the production of both fungal isolates was evaluated in solid grain substrates. In solid-state fermentation, the best conidia production was achieved with the soybean meal and broken corn for I. farinosa, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biphasic fermentation; Entomopathogenic fungi; Isaria fumosorosea; Isaria farinosa; Agro-industrial products.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400002

Effects of the temperature and storage on formulations with Mycelia of Beauveria bassiana (Bals.) Vuill and Metarhizium anisopliae (Metschn.) Sorok
Provedor de dados: 52
Autores: Marques,Edmilson J.; Alves,Sérgio B.; Marques,Irene M. R.
This research deals with preparation of experimental formulations with mycelia of Beauveria bassiana and Metarhizium anisopliae. The formulations were prepared with sodium alginate and pre-gelatinized corn-starch. They were kept at 25, 30 and 35±1ºC. Pre-gelatinized corn starch was more suitable that the sodium alginate for the preparations of formulations with mycelia of B. bassiana and M. anisopliae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Formulation; Entomopathogenic fungi; Microbial Control.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200004

Infectivity of housefly, Musca domestica (Diptera: Muscidae) to different entomopathogenic fungi
Provedor de dados: 58
Autores: Farooq,Muzammil; Freed,Shoaib.
Abstract The housefly Musca domestica is a worldwide insect pest that acts as a vector for many pathogenic diseases in both people and animals. The present study was conducted to evaluate the virulence of different local isolates of Beauveria bassiana, Metarhizium anisopliae and Isaria fumosorosea on M. domestica using two bioassay techniques: (1) adult immersion and (2) a bait method applied to both larvae and adults. The results showed evidence of a broad range of responses by both stages (larvae and adults) to the tested isolates of B. bassiana, M. anisopliae and I. fumosorosea. These responses were concentration-dependent, with mortality percentages ranging from 53.00% to 96.00%. Because it resulted in lower LC50 values and a shorter lethal time, B....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungi; Fecundity; Housefly; Infectivity; Pathogen; Vector.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400807

Winter prevalence of obligate aphid pathogen Pandora neoaphidis mycosis in the host Myzus persicae populations in southern China: modeling description and biocontrol implication
Provedor de dados: 58
Autores: Zhou,Xiang.
Pandora neoaphidis overwintering had been investigated by monitoring its prevalence in Myzus persicae populations in open fields. Cabbage plants in field plots were weekly taken after mycosis initiation, to count and examine the living and dead aphids infected by P. neoaphidis. Based on the field data, infection levels (I) varied with field temperature (T), relative humidity (RH) and aphid count (numbers of living aphids per plant, N) over days (D), fitting well to the modified logistic equation I=0.91/[1+exp(8.5+(2.0H T H RH-20.2NI0)D)] (r²=0.897), where H T indicated daily hours of low temperature (&lt;4°C), H RH daily hours of high air humidity (&amp;gt;90% RH) and I0 primary infection level. The model demonstrated the abiotic and biotic factors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungi; Aphid; Epizootic modeling; Entomophthorales; Microbial control.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100038

Sporulation of Metarhizium anisopliae var. Acridum and Beauveria bassiana on Rhammatocerus schistocercoides under humid and dry conditions
Provedor de dados: 58
Autores: Magalhães,Bonifácio Peixoto; Goettel,Mark Stanislaw; Frazão,Heloisa da Silva.
The sporulation of the fungi Metarhizium anisopliae var. acridum and Beauveria bassiana in cadavers of the grasshopper Rhammatocerus schistocercoides was studied in dry and humid environments. Both fungi were equally virulent against R. schistocercoides. However, internally, M. anisopliae produced more conidia than B. bassiana at 53% and 75% relative humidity. Externally, there was no sporulation at 53% and 75% RH, and M. anisopliae produced more conidia than B. bassiana at 100% RH.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Entomopathogenic fungi; Internal sporulation; Grasshoppers; Microbial control.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000300002

Enzymatic comparison and mortality of Beauveria bassiana against cabbage caterpillar Pieris brassicae LINN
Provedor de dados: 58
Autores: Dhawan,Manish; Joshi,Neelam.
Abstract Beauveria bassiana, an entomopathogenic fungus, is the alternative biocontrol agent exploited against major economic crop pests. Pieris brassicae L. is an emerging pest of the Brassicaceae family. Therefore, in the present study, fungal isolates of Beauveria bassiana, viz. MTCC 2028, MTCC 4495, MTCC 6291, and NBAII-11, were evaluated for their virulence against third instar larvae of P. brassicae. Among all these fungal isolates, maximum mortality (86.66%) was recorded in B. bassiana MTCC 4495 at higher concentration of spores (109 conidia/ml), and the minimum mortality (30.00%) was recorded in B. bassiana MTCC 6291 at a lower concentration (107 conidia/ml) after ten days of treatment. The extracellular cuticle-degrading enzyme activities of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitinase; Entomopathogenic fungi; Lipase; Mortality; Protease.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300522

Total lipids and fatty acids of strains of Metarhizium anisopliae
Provedor de dados: 58
Autores: Pupin,Antonio Marcos; Messias,Claudio Luiz; Piedrabuena,Aquiles Eugênico; Roberts,Donald Wilson.
Two growth stages, conidia (C) and mycelium (M), and two media, minimal medium (MM) and complete medium (MC), were compared in 10 strains of M. anisopliae, and two strains of M. anisopliae var. majus were similar in percentages of total lipids. Tukey test for average of lipid content in conidia (C) and mycelia (M) cultured on minimal (MM) and complete (MC) media showed significant differences between means at the 5% level for mycelia and conidia, indicating variability in total lipid production and storage during growth. Strains 5 and 7, both variety majus, did not present sizable differences from variety anisopliae. For fatty acids, C18:1 and C18:2, oleic and linoleic, respectively, the differences were all highly significant (p= 1%) with the highest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipids; Fatty acids; Metarhizium anisopliae; Entomopathogenic fungi; Microbial control.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000200012

Microbial control of the invasive spiraling whitefly on cassava with entomopathogenic fungi
Provedor de dados: 58
Autores: Boopathi,Thangavel; Karuppuchamy,Palaniappan; Singh,Soibam B.; Kalyanasundaram,Manickavasagam; Mohankumar,S.; Ravi,Madhaiyan.
Abstract The entomopathogenic fungi Beauveria bassiana, Metarhizium anisopliae, Lecanicillium lecanii and Isaria fumosorosea were tested for their efficacy in managing the exotic spiraling whitefly Aleurodicus dispersus (Hemiptera, Aleyrodidae) on cassava (Manihot esculenta) during 2 seasons (2011-2012 and 2012-2013). The fungi I. fumosorosea and L. lecanii exhibited promising levels of control (&gt; 70% mortality of the A. dispersus population). The percent mortality increased over time in both seasons. Application of I. fumosorosea was highly pathogenic to A. dispersus in both seasons compared to the other entomopathogenic fungi. Analysis of the percent mortality in both seasons revealed differences in efficacy between 3 and 15 days after treatment. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aleurodicus dispersus; Manihot esculenta; Biocontrol; Entomopathogenic fungi; Mortality.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401077

Evaluation of Metarhizium anisopliae var. anisopliae Qu-M845 Isolate to Control Varroa destructor (Acari: Varroidae) in Laboratory and Field Trials
Provedor de dados: 117
Autores: Rodríguez,Marta; Gerding,Marcos; France,Andrés; Ceballos,Ricardo.
The effectiveness of the Metarhizium anisopliae (Metschinkoff) Qu-M845 isolate was evaluated in laboratory and field trials. It was previously selected for thermal resistance (at 30 and 35 ºC) and pathogenicity on Varroa destructor (Anderson and Trueman). In the laboratory, the first evaluations were carried out by spraying and increasing the concentration from zero to 10(8) conidia mL-1 on varroa adults. Lethal concentrations required for 50 and 90% mite mortality (LC50 and LC90) were 3.8 x 10(5) and 8 x 10(7) conidia mL-1, respectively (&amp;#967;2 = 2.03). In the autumn field trials, three application methods (doses of 5 x 10(10) conidia per hive) were evaluated. The treatments were: a) conidia stamped on filter paper, located on every second frame...
Tipo: Journal article
Palavras-chave: Biological control; Entomopathogenic fungi; Varroasis; Insect pathology.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400009

Selection of Entomopathogenic Fungi to Control Varroa destructor (Acari: Varroidae)
Provedor de dados: 117
Autores: Rodríguez,Marta; Gerding,Marcos; France,Andrés.
The aim of this work was select entomopathogenic fungi tolerant to temperatures inside the brood area of honey bees (Apis mellifera) for to control Varroa destructor. For this purpose, 50 Beauveria bassiana (Balsamo) Vuillemin and 48 Metarhizium anisopliae (Metschn.) Sorokin isolates were evaluated at 30 and 35 ºC. For each isolate, colony discs of 5 mm with mycelium were placed in the center of a Petri dish with Sabouraud dextrose agar (SDA) medium. The dishes were incubated at 30 and 35 °C, without light. Radial growth of each colony was measured daily. All the B. bassiana and M. anisopliae isolates presented a lineal growth rate at a temperature of 30 ºC. However, at 35 ºC, most of the isolates did not grow, except three B. bassiana and 14 M. anisopliae...
Tipo: Journal article
Palavras-chave: Biological control; Entomopathogenic fungi; Varroasis; Entomopathology.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400008

White grub (Coleoptera: Melolonthidae) mortality induced by Ophiocordyceps melolonthae
Provedor de dados: 65
Autores: Salgado-Neto,Geraldo; Vaz,Marcos Braz; Guedes,Jerson Vanderlei Carús.
ABSTRACT: The occurrence of white grub roots in soybean crops in the South of Brazil has gradually increased. However, there is not information on the biological control of grubs by entomopathogenic fungi. This study aimed to induce infection by Ophiocordyceps melolonthae and analyze longevity in Cyclocephala modesta and Dyscinetus gagates larvae (Coleoptera: Melolonthidae). In the laboratory, Cyclocephala modesta and Dyscinetus gagates had a mortality rate of 85% and 75%, respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Dissemination; Entomopathogen; Entomopathogenic fungi; Induced infection.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600156

First record of Ophiocordyceps dipterigena (Ascomycota: Hypocreales: Ophiocordycipitaceae) infecting adults of Melanagromyza sojae (Diptera: Agromyzidae) in Brazil
Provedor de dados: 65
Autores: Salgado-Neto,Geraldo; Sanz-Veiga,Priscila Andre; Vaz,Marcos André Braz.
ABSTRACT: This note is the first report on the infection of adult stage of Melanagromyza sojae Zehntner, 1900 (Diptera: Agromyzidae) by the entomopathogenic fungus Ophiocordyceps dipterigena (Hypocreales: Ophiocordycipitaceae) (Berk. &amp; Broome) G. H. Sung, J.M. Sung, Hywel-Jones &amp; Spatafora, in subtropical Brazil. Entomopathogenic fungi, which attack dipteran insects, are of great scientific and economic importance mainly due to their potential as biological control agents of insect pests. Our findings bring new perspectives on the geographical distribution and host range of Ophiocordyceps dipterigena. We emphasize the need of further studies and research on new biological control agents of agricultural pests such as the soybean stem miner fly.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Entomopathogenic fungi; Natural infection; Stem miner fly; Soybean pests.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700152