13869
10.30848/PJB2026-12(4)
<p>
Integrated disease management of <em>Rhizoctonia solani</em> root rot in common bean</p>
<p>
</p>
Muttalib, Abdul Qayoom Rajput, Saleem Shahzad, Saboohi Raza and Samia Sattar
<p style="text-align: justify;">
<em>Rhizoctonia solani</em> was frequently isolated from diseased plants, and A 688 bp rDNA fragment was successfully amplified, which identified the isolate as <em>R. solani</em> CB1 (OR053863) with 96.44% genetic similarity to <em>R. solani</em> AG-4 HGIII RR2 (LC504765.1). <em>In vitro</em>, isolate CB1 caused 100% disease severity in bean seedlings. In the food poison method, fungicides exhibited substantial suppression in the growth of <em>R. solani.</em> Fungicide Nativo showed 52.2% growth inhibition when used @ 1 ppm. Ready Super at 10 ppm gave 72.5% growth suppression of the pathogen. In dual culture plate assays, <em>Trichoderma longibrachiatum </em>and<em> T. harzianum</em> suppressed <em>R. solani </em>growth by 66.7 and 60.4%, respectively. In pot experiment, <em>R. solani</em> showed 46.7% disease severity in positive control plants. The disease severity decreased to 6.7% with Nativo treatment, showing the best control. Fungicides and biocontrol agents significantly decreased disease severity and improved growth of bean plants compared to control. Biological agents, including <em>T. harzianum </em>and<em> T. longibrachiatum</em>, outperformed fungicides in improving plant length and dry weight. </p>
inpress
2026
58
12
1
13