Vol. 11, Issue 12 (2022)

Author(s):
Rajendra Prasad M, Padmaja D, Balram N and Omprakash S

Abstract:
One of the principal diseases, Macrophomina phaseolina caused sesame stem and root rot, is responsible for 25–30% production losses each year, particularly in the turmeric fallows of Northern Telangana Zone. It is also one of the most prevalent illnesses in every Indian state that grows sesame. In sesame, the pathogen results in seedling death as well as root and stem rot. The disease can affect crops at any stage of growth and is made more likely by dry conditions and moisture stress. The main worry is secondary infection by Pycnidia, which completely kills plants from pod formation to maturity stage, resulting in significant yield losses. The experiment's objective was to assess fungicide molecules for field-based control of Macrophomina phaseolina secondary spread. The minimum root rot incidence (13.2) was recorded in T2 -Seed treatment with Trichoderma viride @ 10 g/kg + furrow application of T. viride (2.5 kg/ha enriched in 100 kg of FYM) @ 250 kg/ha and foliar application of Trifloxystrobin + Tebuconozole @ 0.5 g/l at capsule initiation and second spray after 15 days interval) followed by T3 -Seed treatment with T. viride @ 10 g/kg + furrow application of T. viride (2.5 kg/ha enriched in 100 kg of FYM) @ 250 kg/ha and foliar application of Azoxystrobin @ 1 ml/l at capsule initiation and second spray after 15 days interval) with 14.1 per cent disease root rot incidence, whereas the maximum root rot incidence (27.5 %) was recorded in control and maximum (685.3 kg ha^-1) yield was recorded in T₂ treatment when compared to inoculated control (343.9 kg ha^-1).