Reduces 30-68% of rice black bug (RBB) population in seven days preventing yield loss of 80% due to bug burn. Microbial pathogen attacking RBB with its green toxin-producing spores that paralyze the pests then kill them. Economical, easy to mass produce using locally available substrates, and environment-friendly.

The PhilRice`s Rice Technology Bulletin No. 44 Metarhizium: Microbial Control Agent for Rice Black Bug provides a step-by-step on how to mass produce the fungus and how to apply it in the field.


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Philippine Rice Research Institute (PhilRice) is a government corporate entity attached to the Department of Agriculture created through Executive Order 1061 on 5 November 1985 (as amended) to help develop high-yielding and cost-reducing technologies so farmers can produce enough rice for all Filipinos.

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Philippine Rice Research Institute