Anais da Sociedade Entomológica do Brasil (1997) 26, 15-20

Alcides Moino Jr. and Sérgio B. Alves (1997)
Determinação de Concentrações de Beauveria bassiana, (Bals.) Vuill. para o Controle de Insetos-Pragas de Grãos Armazenados
[Determination of dosages of Beauveria bassiana (Bals.) Vuill. for stored grain pests control]
Anais da Sociedade Entomológica do Brasil 26 (1), 15-20
Abstract: The susceptibility of two isolates of Beauveria bassiana (Bals.) Vuill. against Sitophilus oryzae (L.), S. zeamais (Motsch.) and Rhyzopertha dominica (Fabr.) was determined. Boxes containing stored rice previously inoculated with conidia of two B. bassiana isolates were infested with the three insect species and mantained at 26 ± 0.5°C, 70 ± 10% of RH, and photophase of 12 hours. All three species were susceptible to both fungal isolates. Both isolates were efficient against S. oryzae, at the concentration of 0.5 g conidia/ 100 g of grain. The isolate 604 was the most efficient against S. zeamais, at the concentration of 0.1 g conidia/ 100 g of grain. Dosages of 0.01 g (isolate 476) and 0.05 g (isolate 604)/100 g of grain provided high mortality levels of R. dominica, confirming the higher susceptibility of this species to the pathogen.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Sérgio Batista Alves, Alcides Moino Jr.

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Sitophilus oryzae	Stored grain
	Sitophilus zeamais	Stored grain
	Rhyzopertha dominica	Stored grain
Beauveria bassiana (entomopathogen)	Sitophilus oryzae	Stored grain
Beauveria bassiana (entomopathogen)	Sitophilus zeamais	Stored grain
Beauveria bassiana (entomopathogen)	Rhyzopertha dominica	Stored grain