Biological Control of Tomato Damping-off Disease Caused by Rhizoctonia solani Kuhn

Abstract

Tomato Damping-off disease caused by Rhizoctonia solani is considered as one of the most destructive diseases in Egypt. Effect of some biological control agents such as Trichoderma viride, arbuscular mycorrhiza (AM) and Bacillus subtilis, at seven different mixed treatments, was tested for their ability to control in tomato plants against the disease. According to varietal responses test, all the tested isolates of R. solani showed Damping-off symptoms on six tested cultivars; however, they considerably varied in percentages of pre-emergency and post-emergency symptoms. Freda was more susceptible than Alesa cultivar, which was relatively resistant. The combination of AM, with T. viride, and B. subtilis was the most effective in decrease the infection rate of the tested biological control, compared with the other treatments.

Harnessing fungal biocontrol agents for the management of plant diseases

“…Zin and Badaluddin, 2020;Sood et al 2020;Rush et al 2021;Sivagnanapazham et al 2022;Tyoekiewicz et al 2022).They are reported to control collar rot, root rot, wilt and damping-off caused by Sclerotium, Rhizoctonia, Fusarium, Phytophthora and Phythium, respectively that affect crops like cotton, sunflower, pulses, vegetab les, sugarcane, turmeric, ginger and plantation crops like pepper, cardamom, banana, etc. Granular formulations developed with biomass of Gliocladium and Trichoderma were effectively reduced the damping-off caused by Rhizoctonia solani(Arya 2001;Abbas et al 2017;Amer at al. 2019;Kumhar et al 2022).Gliocladium virensSyn.…”