2023 · Fungi & microbial control
Assessment of bio-formulations of indigenous strains of Bacillus thuringiensis, Metarhizium robertsii and Metarhizium majus for management of the rhinoceros beetle, Oryctes rhinoceros L., in field
C. Manjunatha, V. Velavan, R. Rangeshwaran, M. Mohan, A. Kandan, G. Sivakumar, A. N. Shylesha, M. K. Prasanna Kumar, D. Pramesh, M. Sujithra, H. K. Ranganath, S. N. Sushil
CRB research
What the paper covers
A field study compared Bacillus thuringiensis, Metarhizium robertsii and M. majus, alone and in combinations. Combined treatments produced greater larval mortality in the tested conditions.
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Strain, formulation and environment matter. This is not an application label or proof of authorization in Hawaiʻi.
Study setting & findings
India · Potted and field experiments with specified microbial strains
The three-organism combination produced reported fifth-week mortality of 52.8% with soil drench and 57.6% with topical spray. Individual treatments had lower reported mortality.
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Sources & reading notes
Reviewed October 22, 2026. Aloha Organic summaries draw on the sources below.