scholarly journals Karakterisasi Fisiologi Beberapa Isolat Cendawan Entomopatogen Beauveria bassiana Dan Virulensinya Terhadap Spodoptera litura

2017 ◽  
Vol 1 (1) ◽  
pp. 10
Author(s):  
Trizelia Trizelia ◽  
Novri Nelly
Keyword(s):  
Beauveria Bassiana ◽  
Spodoptera Litura ◽  
Hypothenemus Hampei ◽  
Leptocorisa Oratorius

Penelitian ini bertujuan untuk mempelajari karakter fisiologi isolat B. bassiana yang berasal dari berbagai inang dan virulensinya terhadap Spodoptera litura. Lima isolat B. bassiana yang diuji diisolasi dari hama Leptocorisa oratorius (F.) dan Hypothenemus hampei (Ferr.), rizosfer tanaman bawang daun buah kakao dan batang gandum. Karakter fisiologi yang diamati adalah daya kecambah konidia, pertumbuhan koloni, dan sporulasi, Cendawan diperbanyak pada media SDAY dan uji virulensi dilakukan terhadap larva instar II S. litura. Hasil penelitian menunjukkan bahwa daya kecambah konidia, pertumbuhan koloni dan sporulasi bervariasi antar isolat. Isolat B. bassiana yang diisolasi dari L. oratorius dan buah kakao memiliki karakter fisiologi yang lebih baik dibandingkan dengan isolat lain. Kedua isolat ini juga lebih virulen terhadap larva instar II S. litura dengan mortalitas sebesar 80 – 81,67%.

scholarly journals Keragaman Genetik berbagai Isolat Beauveria bassiana (Bals.) Vuill. (Deuteromycotina: Hyphomycetes) dan Virulensinya terhadap Crocidolomia pavonana

2013 ◽  
Vol 14 (3) ◽  
pp. 176 ◽  
Author(s):  
Trizelia Trizelia ◽  
Teguh Santoso ◽  
Soemartono Sosromarsono ◽  
Aunu Rauf ◽  
Lisdar I Sudirman
Keyword(s):  
Beauveria Bassiana ◽  
Clustering Analysis ◽  
Genetic Similarity ◽  
Geographic Origin ◽  
Nilaparvata Lugens ◽  
Hypothenemus Hampei ◽  
Chrysodeixis Chalcites ◽  
Nilaparvata Lugens Stål ◽  
Geographical Locations ◽  
Leptocorisa Oratorius

The objectives of the research were to study the genetic variability of various Beauveria bassiana (Bals.) Vuill. isolates andvirulence to Crocidolomia pavonana. Thirteen isolates of B. bassiana were isolated from Nilaparvata lugens (Stål),Leptocorisa oratorius (F.), Thrips sp., Hypothenemus hampei (Ferr.), Crocidolomia pavonana (F.), Spodoptera litura (F.),Chrysodeixis chalcites (Esp.), and Riptortus linearis (L.) pests from different geographical locations in Indonesia. Fourteendifferent random primers were used to amplify DNA. Clustering of isolates were obtained using Unweight Pair GroupMethod Avarage (UPGMA). The results showed that only OPA08 primer generated more polymorphic DNA fragments.Result of clustering analysis showed that B. bassiana isolates forms two groups having genetic similarity equal to 55%.Clustering of isolates does not correlate to host type nor geographic origin. Mortality of second instar C. pavonana larvaewas dependent on the fungal isolates. At a concentration of 108 conidia/ml, isolate Bb-La2 had the highest virulence whichcaused 65% mortality of 2nd instar larvae. Isolates of B. bassiana is virulent against C. pavonana larvae present in the samegenotype group.

Phylogenetic origins of African and Neotropical Beauveria bassiana s.l. pathogens of the coffee berry borer, Hypothenemus hampei

2006 ◽  
Vol 93 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Stephen A. Rehner ◽  
Francisco Posada ◽  
Ellen P. Buckley ◽  
Francisco Infante ◽  
Alfredo Castillo ◽  
...  
Keyword(s):  
Beauveria Bassiana ◽  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Coffee Berry Borer

Effect of Spinosad Combined with Beauveria bassiana (Hypocreales: Clavicipitaceae) on Hypothenemus hampei (Coleoptera: Curculionidae) under Laboratory Conditions

2019 ◽  
Vol 54 (1) ◽  
pp. 106-109
Author(s):  
Arcadio D. Morales ◽  
Alfredo Castillo ◽  
Juan Cisneros ◽  
Javier F. Valle ◽  
Jaime Gómez
Keyword(s):  
Beauveria Bassiana ◽  
Hypothenemus Hampei ◽  
Laboratory Conditions

scholarly journals JAMUR ENTOMOPATOGEN ASAL TANAH LEBAK DI SUMATERA SELATAN DAN POTENSINYA SEBAGAI AGENSIA HAYATI WALANG SANGIT (LEPTOCORISA ORATORIUS (F.))

2010 ◽  
Vol 10 (2) ◽  
pp. 154-161
Author(s):  
Effendy TA ◽  
Robby Septiadi ◽  
Abdullah Salim ◽  
Abdul Mazid
Keyword(s):  
Beauveria Bassiana ◽  
Analysis Of Variance ◽  
Entomopathogenic Fungi ◽  
Probit Analysis ◽  
Biological Agents ◽  
Biocontrol Agents ◽  
Stink Bug ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Leptocorisa Oratorius

Entomopathogenic fungi from the lowland soil of South Sumatera and their potential as biocontrol agents of Stink Bug (Leptocorisa oratorius (F.)). The purpose of this research was to explore and examine the potential of soil borne entomopathogenic fungi from South Sumatera as biological agents of Leptocorisa oratorius (F).  Soil used for trapping entomopatogenic fungi, was taken from five locations  in South Sumatera.  Percentage of nymph mortality was analyzed by using analysis of variance and arranged in Completely Randomized Design.  LT50­ of nymph mortality was determined with Probit Analysis.  Entomopathogenic fungi found in this research were Beauveria bassiana and Metarhizium sp.  Stink bug mortality due to B. bassiana isolates reached 40-73.3% and Metarhizium sp. reached 56.7-70%. The results showed that Metarhizium isolates were more virulent than B. bassiana isolates.  The viability of B. bassiana conidia did not decrease during sub-culturing.  Sub-culturing did not influence the mortality of stink bug nymph but it prolonged the LT50­  of the stink bug.

scholarly journals Tecnologia de aplicação de Beauveria bassiana (Hypocreales: Cordycipitaceae) no controle de Hypothenemus hampei (Coleoptera: Curculionidae)

2020 ◽  
Author(s):  
◽  
Raquel Moraes Costa Pereira
Keyword(s):  
Beauveria Bassiana ◽  
Hypothenemus Hampei

O objetivo da pesquisa foi avaliar a eficiência de diferentes métodos de aplicação do fungo Beauveria bassiana IBCB66 no controle de Hypothenemus hampei. Foram realizados dez experimentos em laboratório com aplicação de suspensões com blastosporos e com conídios aéreos de B. bassiana IBCB66, por três métodos de aplicação: imersão, pulverização em Torre de Potter e caminhamento sobre conídios aéreos em pó. As suspensões foram padronizadas em 2,4x109 , 1x109 , 5x108 , 1x108 , 5x 107 e 1x107 conídios/mL-1 e o pó com concentrações 1,14x109 ; 5,7x109 ; 1,14x108 ; 5,7x107 ; 1,14x107 e 5,7x106 conídios/g. Em campo foram realizados experimentos com os métodos: sachês disseminadores; pulverização e polvilhamento na planta e em solo. Com os sachês foram dois experimentos por 24 horas; um experimento por 15 dias e um experimento por 30 dias. Para os experimentos de 24 horas e 15 dias, foram cinco tratamentos com sachês de diferentes materiais, com concentrações de conídios em arroz+fungo em 2x109 conídios/g e conídios aéreos em pó em 1x1010 conídios/g, com uma testemunha e cinco repetições. Para os sachês por 30 dias foram quatro tratamentos e uma testemunha, com a concentração do pó de conídios aéreos de B. bassiana em 5,98x109 conídios/g.

scholarly journals Ocorrência de Beauveria bassiana (Bals.) Vuill. em broca-do-café (Hypothenemus hampei, ferrari) no estado de Rondônia, Brasil1

2002 ◽  
Vol 32 (3) ◽  
pp. 517-517 ◽  
Author(s):  
José Nilton Medeiros COSTA ◽  
Rachel Barbosa da SILVA ◽  
Paulina de Araújo RIBEIRO ◽  
Alvanir GARCIA
Keyword(s):  
Beauveria Bassiana ◽  
Coffea Canephora ◽  
Hypothenemus Hampei

Em trabalho efetuado visando o levantamento de inimigos naturais da broca-do-café (Hypothenemus hampei, Ferrari) no estado de Rondônia, verificou-se a ocorrência do fungo Beauveria bassiana (Bals.) Vuill. conforme identificação da Embrapa Rondônia. Os frutos de café foram coletados em cafezais da cultivar Conilon (Coffea canephora), nos municípios de Rolim de Moura, Ouro Preto do Oeste e Machadinho do Oeste, Rondônia, nos meses de fevereiro a março de 2000. A percentagem média de infecção de B. bassiana em frutos broqueados variou de 0,23% a 0,47%, sendo menor que em outras regiões do Brasil.

scholarly journals Spodoptera litura Fabr. Control Using Beauveria bassiana to Reduce Pest Damage Intensity and Maintain the Yield of Soybean

2021 ◽  
Vol 830 (1) ◽  
pp. 012069
Author(s):  
Yati Setiati Rachmawati ◽  
Dina Gustiana ◽  
Ayu Rosmiati ◽  
Cecep Hidayat ◽  
Efrin Firmansyah
Keyword(s):  
Beauveria Bassiana ◽  
Spodoptera Litura ◽  
Pest Damage
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