8/7/2023 0 Comments Tomato late blight pathogen![]() ![]() ![]() Fungicides: The QoI Fungicides, the Rise and Fall of a Successful Class of Agricultural Fungicides. Akademie Verlag, Berlin.įernández-Ortuño, D., Torés, J. Mode of action of methyl benzimidazol-2-yl-carbamate (MBC) and some biochemical aspects of acquired resistance against this fungicide in Aspergillus nidulans. International Journal of Current Microbiology and Applied Sciences, 7(10), 3036-3047.ĭavidse, L. Severity of Tomato Late Blight Caused by Phytophthora infestans (Mont.) De Bary in Kashmir. Tomato early blight (Alternaria solani): The pathogen, genetics, and. Retrieved 10 14, 2020, from infonet-biovision. Annual Review of Phytopathology, 24, 411-451.īiovision. Biosynthesis and functions of fungal melanins. Burlington, MA 01803, USA.: Elsevier Academic Press 30 Corporate Drives, Suite 400.īartlett, D., Clough, J., Godwin, J., Hall, A., Hamer, M. Pakistan Journal of Life and Social Sciences, 16(2), 117-123.Īgrios, G. Emerging Resistance in Alternaria solani Against Different Fungicides in Southern Punjab, Pakistan. Journal of Applied Sciences, 23, 47-58.Īkram, S., ud Din Umar, U., Atiq, R., Tariq, A., Mahmood, M. Effect of some chemical salts on suppressing the infection by early blight disease of tomato. Thus higher concentration of fungicide application is recommended in cases where there is low efficacy of fungicides.Ībada, K., Mostafa, S. Increased fungicide concentration effectively inhibited mycelia growth. solani isolates with Mancozeb (640 g kg -1) + Metalaxyl (40 g kg -1) and Propineb700g/kg +Cymoxanil 60g/kg giving significantly (p≤ 0.05) better inhibition while Carbendazim had the lowest inhibition effect. Fungicides screened varied in mycelia inhibition against P. Lower inhibition of 71.78% was observed at 25% concentration as compared to 50% and 75% with 76.77% and 76.36% respectively. Mycelia growth inhibition increased with an increase in fungicide concentration. Carbendazim recorded lower per cent inhibition of 39.15%. Mancozeb (640 g kg -1) + Metalaxyl (40 g kg -1) and Propineb700 g/kg + Cymoxanil 60 g/kg recorded higher per cent inhibition of mycelia growth of 92.4% and 89.71% respectively. Percentage inhibition for early blight pathogen ( Alternaria solani) was 80.42% compared to late blight pathogen Phytophthora infestans at 69.51%. ![]() All the tested fungicides significantly (p≤ 0.05) inhibited mycelial growth of tested pathogen. The in-vitro plate experiment was laid out in a Complete Randomized Design with 3 replicates, and data on mycelia growth inhibition analyzed through General Linear Model (α=.05) and significant means separated using Least significant difference (LSD) using Scientific Analysis System version 9.4. The poison food method was used to evaluate fungicides known by trade names and application levels Mancozeb (640 g kg -1) + Metalaxyl (40 g kg -1), Mancozeb 640 g/kg + Metalaxyl 80 g/kg, Mancozeb, Propineb700 g/kg + Cymoxanil 60 g/kg, Carbendazim and Triticonazole at different concentration (25%, 50% and 75%). This study was carried out in-vitro to evaluate the efficacy of six synthetic commercial fungicides used by farmers around River Ruguti, against two tomato leaf blight pathogens Alternaria solani and Phytophthora infestans. Yet, local tomato farmers have continued to use the fungicides without periodic evaluation of their effectiveness. Indiscriminate use and application of sub-lethal doses of fungicides negate disease management efforts, and may lead to gradual fungicide resistance. Conventional use of commercial synthetic fungicides in management of tomato blight disease has become a key input for tomato production among farmers in Tharaka Nithi County, Kenya. Tomato early and late blight diseases caused by Alternaria solani and Phytophthora infestans respectively, are constraints to tomato production globally. In-vitro, fungicides sensitivity, Alternaria solani, Phytophthora infestans Abstract Jaramogi Odinga University of Science and Technology ![]()
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