Anais da Sociedade Entomológica do Brasil (1997) 26, 277-283

José F. da S. Martins, Maria G.A. de Lima, Marcos Botton, Jairo J. Carbonari and Eliane D. Quintela (1997)
Efeito de Isolados de Metarhizium anisopliae (Metsch.) Sorok. e Beauveria bassiana (Bals.) Vuill. sobre o Percevejo-do-Colmo do Arroz, Tibraca limbativentris Stal
[Effect of Metarhizium anisopliae (Metsch.) Sorok. and Beauveria bassiana (Bals.) Vuill. isolates on the rice stem bug, Tibraca limbativentris Stal]
Anais da Sociedade Entomológica do Brasil 26 (2), 277-283
Abstract: The rice stem bug, Tibraca limbativentris Stal (Heteroptera: Pentatomidae), is an important pest of irrigated rice (Oryza sativa) crop in Brazil. The effect of isolates (CP) of the entomopathogenic fungi, Beauveria bassiana (Bals.) Vuill. (Bb) and Metarhizium anisopliae (Metsch.) Sorok. (Ma) was evaluated in the field using cages. In the 1st and 2nd experiments, conidial suspensions at dosages equivalents to 10¹³ conidia/ha, were sprayed on the soil and on rice plant stems, where the bugs were concentrated. Significant mortality (M) was caused by isolates CPBb164, CPMa171 and, mainly, by CPMa172 (46,5% < M < 88,7%). In the 3rd experiment, conidial sprays and broadcast of fungus on inoculated grain rice at 10¹³ conidia/ha were evaluated.. Both applications were effective (42,7% < M < 70,8%) in controlling the insect.
(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): Marcos Botton

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

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tibraca limbativentris	Rice (Oryza)	Brazil (south)
Beauveria bassiana (entomopathogen)	Tibraca limbativentris	Rice (Oryza)	Brazil (south)
Metarhizium anisopliae (entomopathogen)	Tibraca limbativentris	Rice (Oryza)	Brazil (south)