Efficiency of Bacillus subtilis in inhibiting the mycelial growth of Ganoderma boninense the causal agent of basal stem rot disease in oil palm (Elaeis guineensis Jacq.)

Main Article Content

Seephueak, P.
Hansuek, S.
Krualee, S.
Seephueak, W.

Abstract

This research evaluated the efficacy of biological products derived from Bacillus subtilis subsp. subtilis RUTs001, Bacillus subtilis RUTs002 and Bacillus subtilis RUTs003 in inhibiting the mycelial growth of Ganoderma boninense, the causal agent of basal stem rot disease in oil palm (Elaeis guineensis) on agar media and on mushroom bag. The results demonstrated that the combinations of B. subtilis subsp. subtilis RUTs001 + B. subtilis RUTs003 and B. subtilis subsp. subtilis RUTs001 + B. subtilis RUTs002 emerged as the most effective, inhibiting the mycelial growth of G. boninense and resulting in a notable slowdown of mycelial growth. The time required for full colonization of the substrate was recorded at 35 days after inoculation. Followed by commercial B. subtilis product achieved full colonization at 34 days. Moreover, the use of bioproduct of B. subtilis can degrade mycelium completely within 150 days of its colonization. While in the control, mycelium growth was slower, and full colonized was achieved at 32 days.

Article Details

How to Cite
Seephueak, P., Hansuek, S., Krualee, S., & Seephueak, W. (2026). Efficiency of Bacillus subtilis in inhibiting the mycelial growth of Ganoderma boninense the causal agent of basal stem rot disease in oil palm (Elaeis guineensis Jacq.). International Journal of Agricultural Technology, 22(2), 915–930. https://doi.org/10.63369/ijat.2026.22.2.915-930.
Section
Original Study

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