Vol. 7, Issue 3 (2019)
Evaluation of bio control agents and novel fungicide tebuconazole50%+trifloxystrobin25% against Helminthosporium oryzae isolates under in vitro.
Author(s): Malempati Subhash Sri Sanjay, Upendra Kumar Khare, M Surya Prakash Reddy and Raavi Sreenivasulu
Abstract: Brown leaf spot of tomato caused by Helminthosporium oryzae is an air-borne pathogen responsible for qualitative and quantitative loss in rice production. It attacks the plant at any growth stage and it appears on the foliage, when there is an epidemic outbreak of disease the use of fungicides was one of the viable method of control. The Strobilurin fungicides are one of the most effective and broad spectrum action against plant diseases. It requires the evaluation of fungicides under in vivo conditions to know its effectiveness, prior to start the spray schedule in field conditions and for developing a cost effective disease management approach. Five bio agents and one new generation fungicide were evaluated against Helminthosporium oryzae under in vivo conditions. Effective inhibition of the mycelial growth of was recorded at 500ppm concentration ofTebuconazole50% + Trifloxystrobin25% WG. Among five biocontrol agents, i.e. Trichoderma viride was effectively followed by Trichoderma harzianum, while Pseudomonas fluorescents was fount least effective.
Pages: 4176-4179 | 472 Views 76 Downloads
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How to cite this article:
Malempati Subhash Sri Sanjay, Upendra Kumar Khare, M Surya Prakash Reddy, Raavi Sreenivasulu. Evaluation of bio control agents and novel fungicide tebuconazole50%+trifloxystrobin25% against Helminthosporium oryzae isolates under in vitro.. Int J Chem Stud 2019;7(3):4176-4179.
