Appraisal of fungi leaf spots of groundnut (Arachis hypogea) and control of Cylindrocladium blight disease using biocontrol, botanical, and chemical measures

Authors : Elias Mjaika NDİFON
Pages : 71-78
Doi:10.38042/biotechstudies.1190215
View : 85 | Download : 14
Publication Date : 2022-12-31
Article Type : Research Paper
Abstract :Groundnut is infected by 55 pathogens which adversely contribute to the low yield of groundnuts. Three sub-trials were conceived to proffer solutions to groundnut Cylindrocladium parasiticum disease. These sub-trials insert ignore into journalissuearticles values(using biocontrol, synthetic and botanical measures); were set up in vitro using completely randomized design with each treatment replicated thrice. Firstly, all biocontrol insert ignore into journalissuearticles values(Trichoderma); isolates showed a steady linear increase in the inhibition of the growth of the pathogen. There was no significant difference insert ignore into journalissuearticles values(P≤0.05); between the isolates of Trichoderma harzianum at 96 h after inoculation insert ignore into journalissuearticles values(HAI);. Secondly, the synthetic pesticide Mancozeb® 100% significantly inhibited the pathogen more than all other synthetic chemical treatments, followed by Mancozeb 50%, Tandem® 100% and Tandem 50% insert ignore into journalissuearticles values(which were at par insert ignore into journalissuearticles values(at 144 HAI););. Thirdly, the botanical Parkia sp. 100% was significantly superior to other botanicals insert ignore into journalissuearticles values(192 HAI results);. Likewise, Casuarina sp. 100% and Parkia sp. 50% were at par but performed better than other treatments except for Parkia sp. 100%. Inhibition by Casuarina sp. 50% was at par with Parkia sp. 50% but it was significantly superior to other treatments insert ignore into journalissuearticles values(except for Parkia sp. 100%, Casuarina sp. 100%, and Parkia sp. 50%);. Finally, all trials showed that Mancozeb 100% performed better than other treatments.
Keywords : Peanuts, Management, Trichoderma, Plant extracts

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