Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains

Conidia ofBeauveria bassiana were evaluated for activity against adults ofTribolium castaneum, under laboratory conditions closely resembling the stored-grain conditions. Three doses of the fungus were applied in the treatments: 0.1 g, 0.5 g and 1 g per 20 insects/dose/flask. Treated insects and unt...

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Autores principales: Padín, Susana Beatriz, Dal Bello, Gustavo Mariano, Vasicek, Araceli
Formato: Articulo
Lenguaje:Inglés
Publicado: 1997
Materias:
Ciencias Agrarias
Beauveria bassiana
Tribolium castaneum
Microbial control
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/135192
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-135192
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Beauveria bassiana
Tribolium castaneum
Microbial control
spellingShingle Ciencias Agrarias
Beauveria bassiana
Tribolium castaneum
Microbial control
Padín, Susana Beatriz
Dal Bello, Gustavo Mariano
Vasicek, Araceli
Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
topic_facet Ciencias Agrarias
Beauveria bassiana
Tribolium castaneum
Microbial control
description Conidia ofBeauveria bassiana were evaluated for activity against adults ofTribolium castaneum, under laboratory conditions closely resembling the stored-grain conditions. Three doses of the fungus were applied in the treatments: 0.1 g, 0.5 g and 1 g per 20 insects/dose/flask. Treated insects and untreated were incubated in broken wheat. There were 5 replications for each test. A total of 1600 treated and control insects used were kept in a climatic chamber (70±5% and 27±2°C) for 45 days. Observations were performed daily and the recording of infected cadavers began when the percentage of mortality exceeded 50%. The evaluation of the efficiency of each dose ofB. bassiana was made 14, 21, 28 and 45 days after inoculation. Mortality of adults that were exposed to the beetles treated with 0.5 g and 1 g of conidia ofB. bassiana / 20 adults was 87 and 85% respectively, within 21 days of exposure. Onset of mortality was further delayed at lower dosage of the fungus; 55% after 21 days. After 28 days there were no difference in mortality between the 0.5 g and 1 g dosages ofB. bassiana. The most efficient treatment was 0.5 g/20 insects, which resulted in a control higher than 50% 14 days post treatment.
format Articulo
Articulo
author Padín, Susana Beatriz
Dal Bello, Gustavo Mariano
Vasicek, Araceli
author_facet Padín, Susana Beatriz
Dal Bello, Gustavo Mariano
Vasicek, Araceli
author_sort Padín, Susana Beatriz
title Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
title_short Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
title_full Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
title_fullStr Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
title_full_unstemmed Pathogenicity of Beauveria bassiana for adults of Tribolium castaneum ( Col.: Tenebrionidae ) in stored grains
title_sort pathogenicity of beauveria bassiana for adults of tribolium castaneum ( col.: tenebrionidae ) in stored grains
publishDate 1997
url http://sedici.unlp.edu.ar/handle/10915/135192
work_keys_str_mv AT padinsusanabeatriz pathogenicityofbeauveriabassianaforadultsoftriboliumcastaneumcoltenebrionidaeinstoredgrains
AT dalbellogustavomariano pathogenicityofbeauveriabassianaforadultsoftriboliumcastaneumcoltenebrionidaeinstoredgrains
AT vasicekaraceli pathogenicityofbeauveriabassianaforadultsoftriboliumcastaneumcoltenebrionidaeinstoredgrains
bdutipo_str Repositorios
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