scholarly journals Beauveria bassianaStrains for Biological Control ofCosmopolites sordidus(Germ.) (Coleoptera: Curculionidae) in Plantain

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Marilene Fancelli ◽  
Alex Batista Dias ◽  
Italo Delalibera Júnior ◽  
Sandra Cerqueira de Jesus ◽  
Antonio Souza do Nascimento ◽  
...  
Keyword(s):  
Biological Control ◽  
Population Size ◽  
Beauveria Bassiana ◽  
Chemical Control ◽  
Adult Mortality ◽  
The State ◽  
Size Reduction ◽  
Field Conditions ◽  
Cosmopolites Sordidus ◽  
Laboratory Conditions

The objective of this study was to select strains ofBeauveria bassianafor controllingCosmopolites sordidus(Germ.) in plantain farms (cv. Terra) of the “Recôncavo” and southern regions in the state of Bahia, Brazil. The virulence of 32B. bassianaisolates againstC. sordiduswas determined under laboratory conditions. Three isolates (CNPMF 407, CNPMF 218, and CNPMF 416) were selected for evaluation under field conditions in plantations located in the counties of Mutuípe and Wenceslau Guimarães. Population ofC. sordiduswas estimated every 15 days by using pseudostem traps. The efficiency of the three strains ofB. bassianawas compared to chemical control (carbofuran, 4g/trap) and absence of control. Carbofuran caused around 90% of adult mortality after 12 months, with a reduction in the population ofC. sordidussince the first evaluation. A low number of trapped insects was observed in the fungus-treated plots, suggesting the efficiency of the isolates in controlling theC. sordiduspopulation. The strain CNPMF 218 was the most efficient in controllingC. sordidusadults in both locations, causing around 20% mortality, leading to 40% population size reduction after 12 months.

scholarly journals Controle biológico do gorgulho da bananeira Cosmopolites sordidus Germar com a utilização de diversas cepas de Beauveria bassiana em condições de laboratório / Biological control of the banana weevil Cosmopolites sordidus Germar with the use of several Beauveria bassiana strains under laboratory conditions

2021 ◽  
Vol 4 (4) ◽  
pp. 5527-5542
Author(s):  
Andy Ronquillo Moran ◽  
Gustavo Vàsconez Galarza ◽  
Yary Ruiz Parrales ◽  
Dario Dueñas Alvarado ◽  
Luis Suarez García ◽  
...  
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Cosmopolites Sordidus ◽  
Banana Weevil ◽  
Laboratory Conditions

O gorgulho da bananeira Cosmopolites sordidus (Germar, 1824) (Coleoptera: Curculionidae) é uma praga de importância econômica no cultivo da bananeira, portanto, novas alternativas são necessárias para reduzir sua incidência. O estudo foi realizado no ambiente do Laboratório de Entomologia da Faculdade de Ciências Agrárias da Universidade Técnica de Babahoyo, onde foi avaliada a eficácia de diversas cepas de B. bassiana no controle de C. sordidus em condições de laboratório. Foram utilizados 12 tratamentos, que se baseiam na aplicação de diversas cepas de B. bassiana e um controle químico com diferentes doses, com três repetições por tratamento, distribuídos em um ensaio de blocos completos casualizados, onde foram feitas as comparações das médias com os Teste de intervalo múltiplo de Tukey a 95% de probabilidade. Os insetos C. sordidus foram coletados nas fases larva, pupal e adulta dos rebentos de bananeiras afetadas no campo, as quais foram desinfetadas com hipoclorito de sódio a 0,5%, para evitar qualquer tipo de contaminação. As larvas e pupas foram submetidas a completar seu ciclo biológico até a obtenção do adulto. A inoculação do fungo nos insetos adultos de C. sordidus foi realizada por micropulverização com micropipetas, na parte dorsal do inseto adulto com 5 dias de emergência. Os insetos adultos inoculados foram colocados em placas de Petri com 30 gramas de pseudocaule e 30 gramas de rizoma fresca, previamente desinfetados. Para cada tratamento, 5 insetos adultos foram colocados com três repetições, avaliando-se a cada 5, 8, 10 dias após a inoculação. Para estimar corretamente os efeitos dos tratamentos, foram coletados dados sobre o número de insetos mortos, a porcentagem de insetos adultos com crescimento de micélio de B. bassiana e a porcentagem de mortalidade. Pelos resultados obtidos, determinou-se que o tratamento 8 (BbPLUS (B. bassiana) 11,5 ml / L) e o tratamento 9 (BbPLUS (B. bassiana) 12,5 ml / L) apresentaram mortalidade de 80% em adultos de gorgulho preto após 8 e 10 dias após a inoculação. 

scholarly journals Efficacy of Beauveria bassiana and Beauveria pseudobassiana isolates against the pine processionary moth, Thaumetopoea wilkinsoni Tams, 1926 (Lepidoptera/Notodontidae)

2022 ◽  
Vol 32 (1) ◽  
Author(s):  
Elif Fatma Topkara ◽  
Oğuzhan Yanar ◽  
Celal Tuncer ◽  
Ismail Oguz Ozdemir ◽  
Elif Yildirim
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Chemical Control ◽  
Fourth Instar ◽  
Control Methods ◽  
Skin Reactions ◽  
Pine Processionary Moth ◽  
Processionary Moth ◽  
Fungal Isolates ◽  
Thaumetopoea Wilkinsoni

Abstract Background The pine processionary moth, Thaumetopoea wilkinsoni Tams, 1926 (Lepidoptera/Notodontidae) is one of the most harmful insects that destroys pine ecosystems by feeding on pine leaves at its larval stage. Because of its urticating setae, the insect also causes severe skin reactions to animals and humans. Instead of chemical control, eco-friendly biological control methods are preferred to combat this species. Results The purpose of this study was to evaluate the efficacy of five different Beauveria bassiana Vuill, 1912 (Hypocreales/Cordycipitaceae) isolates (TR-SM-10, TR-SM-11, TR-SM-2, TR-SK-1 and TR-D-1) and one B. pseudobassiana Rehner & Humber (Hypocreales/Cordycipitaceae) isolate (TR-SM-1) against the fourth instar larvae of T. wilkinsoni under laboratory conditions. T. wilkinsoni larvae were collected from the Ondokuz Mayıs University Kurupelit Campus in Samsun, Turkey, in 2021, and the fourth instar larvae were used in the experiment. Two ml of spray of the six fungal isolates were applied to every ten larvae at each concentration (1 × 107 and 1 × 108 conidia ml−1). The experiment was carried out in five replicates per group, and the larvae were observed for 10 days. As a result, all isolates of B. bassiana caused 100% mortality at 1 × 108 conidia ml−1 concentration. B. pseudobassiana isolate also caused 100% mortality at both concentrations. At 1 × 107 conidia ml−1 concentration, the larvae treated with the B. pseudobassiana isolate (TR-SM-1) had the lowest LT50 (2.89 days) and LT90 values (4.79 days), while the larvae treated with TR-SM-10 isolate had the highest LT50 (5.65 days) and LT90 values (9.39 days). At 1 × 108 conidia ml−1 concentration, the larvae treated with TR-SK-1 isolate had the lowest LT50 (2.89 days) and LT90 values (4.79 days), while those treated with TR-SM-10 isolate had the highest LT50 (3.95 days) and LT90 values (8.15 days). Conclusion It has been recommended that the five different isolates of B. bassiana and B. pseudobassiana isolates were virulent to T. wilkinsoni larvae and can be used for biological control of T. wilkinsoni.

scholarly journals Selecting native entomopathogenic fungi against Cosmopolites sordidus (Germar) in the laboratory

2021 ◽  
Vol 20 (1) ◽  
pp. 093-097
Author(s):  
Junior Steve Garrido Pérez ◽  
Richard Paredes-Espinosa ◽  
Giannfranco Egoávil Jump ◽  
Oniel Jeremias Aguirre Gil
Keyword(s):  
Beauveria Bassiana ◽  
Entomopathogenic Fungi ◽  
Metarhizium Anisopliae ◽  
Mortality Rates ◽  
Paecilomyces Lilacinus ◽  
Cosmopolites Sordidus ◽  
Laboratory Conditions

The objective of this study was to select native isolates of entomopathogenic fungi against adult Cosmopolites sordidus in laboratory conditions. Four isolates of Beauveria bassiana, two isolates of Metarhizium anisopliae, and two isolates of Paecilomyces lilacinus were tested against C. sordidus. The entomopathogenic fungi that resulted in mortality rates over 50% were M. anisopliae (MA-CsCha and MA-Carabid) and B. bassiana (BB-CsCha and BB-CsLp). The most virulent isolates were MA-CsCha, BB-CsCha, and MA-Carabid with median lethal times (LT50) of 4.82, 5.4, and 5.79 days, respectively. In conclusion, the MA-CsCha, BB-CsCha, MA-Carabid, and BB-CsLp isolates are viable candidates to be tested in banana fields.

scholarly journals Selection of native isolates of Beauveria bassiana (Ascomycota, Hypocreales) for the control of the coffee borer beetle Hypothenemus hampei (Scolytinae) in Brazil

2011 ◽  
Vol 48 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Leandro Dalvi ◽  
Dirceu Pratissoli ◽  
Ricardo Polanczyk ◽  
Gilberto Andrade
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
The State ◽  
Lethal Concentration ◽  
Hypothenemus Hampei ◽  
Median Lethal Concentration ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
The World ◽  
Selection Of

Selection of native isolates ofBeauveria bassiana(Ascomycota, Hypocreales) for the control of the coffee borer beetleHypothenemus hampei(Scolytinae) in BrazilHypothenemus hampei(coffee borer beetle or coffee berry borer) is the main pest of coffeeCoffeaspp. in the world. The aim of this study was to select native isolates of the ascomyceteBeauveria bassianafor biological control of this pest. We collected 27 isolates onH. hampeifrom the state of Espírito Santo in Brazil. Isolates CCA-UFES/Bb-15, Bb-11, Bb-4 and Bb-18 were selected, with confirmed beetle mortality of > 60% after spraying with a suspension of 105 conidia/mL. The median lethal concentration (LC50) of these isolates varied from 4.0 × 104to 7.9 × 104conidia/mL. The standard isolate (ESALQ-447) showed the highest conidiogenesis, with 8.5 × 106conidia, followed by CCA-UFES/Bb-18, Bb-11, Bb-15 and Bb-4, all exceeding 4 × 106. Isolates CCA-UFES/Bb-4, Bb-11, Bb-15, and Bb-18 have a potential to controlH. hampei.

scholarly journals Microbial antagonists against plant pathogens in Iran: A review

2020 ◽  
Vol 5 (1) ◽  
pp. 404-440 ◽  
Author(s):  
Mehrdad Alizadeh ◽  
Yalda Vasebi ◽  
Naser Safaie
Keyword(s):  
Biological Control ◽  
Chemical Control ◽  
Plant Disease ◽  
Plant Pathogens ◽  
Plant Diseases ◽  
Agricultural Products ◽  
Control Measures ◽  
Wide Range ◽  
Plant Disease Management ◽  
Published Research

AbstractThe purpose of this article was to give a comprehensive review of the published research works on biological control of different fungal, bacterial, and nematode plant diseases in Iran from 1992 to 2018. Plant pathogens cause economical loss in many agricultural products in Iran. In an attempt to prevent these serious losses, chemical control measures have usually been applied to reduce diseases in farms, gardens, and greenhouses. In recent decades, using the biological control against plant diseases has been considered as a beneficial and alternative method to chemical control due to its potential in integrated plant disease management as well as the increasing yield in an eco-friendly manner. Based on the reported studies, various species of Trichoderma, Pseudomonas, and Bacillus were the most common biocontrol agents with the ability to control the wide range of plant pathogens in Iran from lab to the greenhouse and field conditions.

scholarly journals Virulence of Aerial Conidia of Beauveria bassiana Produced under LED Light to Ctenocephalides felis (Cat Flea)

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Sarayut Pittarate ◽  
Malee Thungrabeab ◽  
Supamit Mekchay ◽  
Patcharin Krutmuang
Keyword(s):  
Beauveria Bassiana ◽  
Adult Mortality ◽  
Ctenocephalides Felis ◽  
Fluorescent Light ◽  
Malt Extract ◽  
Led Light ◽  
Red Led ◽  
Aerial Conidia ◽  
Different Color

Ctenocephalides felis is an ectoparasitic flea species commonly found on dogs and cats. The current study verified the in vitro virulence of conidia of the entomopathogenic fungus Beauveria bassiana produced under different color LED light (red, blue, purple, green, yellow, and white) to adults of C. felis. The fungal isolates were cultivated on malt extract agar (MEA). Bioassay treatments used aerial conidia in test tubes. Adult fleas were obtained from a house cat in Chiang Mai province, Thailand. The experiments were composed of one control and eleven treatment groups. All of the treatments with B. bassiana conidia caused adult mortality after an exposure of 12 h. Among the conditions used in this study, B. bassiana cultured under red LED and fluorescent light were the most effective in causing mortality (100 %) in adult fleas after 36 h. The experimental results indicate that these aerial conidia of B. bassiana have promising potential for use in control of C. felis adult stages.

An assessment of biological control of the banana pseudostem weevil Odoiporus longicollis (Olivier) by entomopathogenic fungi Beauveria bassiana

2019 ◽  
Vol 20 ◽  
pp. 101262 ◽  
Author(s):  
Alagersamy Alagesan ◽  
Balakrishnan Padmanaban ◽  
Gunasekaran Tharani ◽  
Sundaram Jawahar ◽  
Subramanian Manivannan
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Entomopathogenic Fungi

scholarly journals Management alternatives for Carmenta theobromae (Busck, 1910) (Lepidoptera: Sesiidae) and Simplicivalva ampliophilobia (Lepidoptera: Cossidae), limiting pests of guava in Colombia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Víctor Camilo Pulido-Blanco ◽  
Elberth Hernando Pinzón-Sandoval ◽  
Carlos Felipe González-Chavarro ◽  
Pablo Antonio Serrano-Cely
Keyword(s):  
Chemical Control ◽  
Cultural Practices ◽  
Agricultural Soils ◽  
Experimental Unit ◽  
Water Control ◽  
Strong Argument ◽  
Laboratory Conditions ◽  
Significant Difference ◽  
Management Alternatives ◽  
Harmful Effects

AbstractThe larval stages of Carmenta theobromae Busck (1910) and Simplicivalva ampliophilobia Davis, Gentili-Poole and Mitter (2008) attack the subcortical zone and pith in guava trees, respectively, in the first productive nucleus of fruit trees in Colombia: Hoya del Río Suárez (HRS). The presence of pest insects has been reported in 98% of the farms sampled in HRS (n = 124), with up to 96 and 11 simultaneous larvae per tree, respectively. Although the aspects of the basic biology and life cycle of both pests have been resolved, there are no strategies for managing populations in the field. Therefore, the aim of this study was to evaluate different management alternatives under laboratory and field conditions in HRS. In laboratory conditions, a completely randomized design was used in two separate experiments, each with six treatments: T1: Spinosad (a mixture of Spinosad A and D); T2: S-1,2-di(ethoxycarbonyl) ethyl 0,0-dimethylphosphorodithioate (chemical control); T3: Lecanicillium lecanii; T4: Beauveria bassiana; T5: Mix of B. bassiana and B. brongniartii, and T6: distilled water (control). The number of dead larvae per replicate per treatment was evaluated (DL), with experimental units of five and three larvae, respectively. In the field, to the two best alternatives found for each pest in the laboratory, pruning and keeping the area around the plants free of weeds were added as cultural management, in two separate additional experiments, each with three larvae as experimental unit per treatment. For C. theobromae, the best laboratory alternatives were chemical control (DL: 3.78) and L. lecanii (DL: 2.33), followed without statistical differences by B. bassiana (DL: 1.67). In the field, the virulence of B. bassiana improved (DL: 3), and together with pruning and keeping the area around the plants clear of weeds (DL: 3), they stood out as the best alternatives. For S. ampliophilobia under laboratory conditions, the best alternatives were Spinosad (2.74) and chemical control (DL: 2.66), without significant difference. In the field, there were no statistical differences between the alternatives, except for the control. This statistical parity of cultural practices, and biological and chemical management is an argument in favor of the use of the former to the detriment of the third, especially when the harmful effects of the molecule S-1,2 di (ethoxycarbonyl) ethyl 0, 0-dimethyl phosphorodithioate have been proven in air, water and agricultural soils, in addition to its association with thyroid cancer in humans. This is a strong argument to favor the use of synergies of cultural and biological management methods framed in IPM, as opposed to the use of chemical agents whose harmful effects are strongly documented, and whose use is becoming increasingly prohibited.

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