Vol. 6, Issue 1 (2018)
Effect of fungicides against the mycelial growth, sporulation and spore germination of Alternaria cassia causing Alternaria leaf blight of cowpea
Author(s): Chitali S Vighe, Sushma Nema, Devashish R Chobe and Gaurav A Thakare
Abstract: Vigna unguiculata L. is widespread in tropical Africa and that it seems reasonable to assume that the cowpea is domesticated and spread from tropical Africa in remote times through Egypt or Arabia to Asia and mediterrian region. Cowpea is cultivated in Asia, Africa, Persia, or south region. Cowpea is distributed worldwide especially in arid and semiarid areas mainly grown both in kharif and spring season in most parts of India. In recent year Alternaria blight of cowpea is the most important disease in India. It occurs in endemic form in some region. The disease has gained importance because of changing climate. Use of fungicide is an alternative method of controlling the diseases or crop in the absence of resistant cultivars or when there is a sudden outbreak of disease. Hence, fungicide would continue to be one of the major tools of integrated disease management (IDM). Evaluation of different fungicides in vitro is a handy tool to screen a large number and thus can serve as guide for field testing. So keeping in mind this aspects present study was aimed to identify suitable fungicides use to find out there efficacy against mycelial growth, sporulation and spore germination of Alternaria cassiae. Hence the present experiment was conducted at Department of plant pathology laboratory JNKVV Jabalpur with the help of Completely Randomise Block Design and three replication using seven different fungicides with five different concentrations. Fungicides like Mancozeb, Chrothalonil, Propiconazole, Hexaconazole, Difenconazole, Azoxystrobin, and Carboxin are tested using poisoned food technique at 50 ppm, 100ppm, 200ppm, 500ppm and 1000ppm. Findings revealed that Propiconazole was found most effective followed by Hexaconazole and Difenconazole against the test pathogen. Mancozeb chlorothalonil, carboxin and Azoxystrobin were found inhibitory for the mycelial growth, sporulation and spore germination percentage of A. cassiae.
Pages: 77-79 | 1287 Views 28 Downloads
How to cite this article:
Chitali S Vighe, Sushma Nema, Devashish R Chobe, Gaurav A Thakare. Effect of fungicides against the mycelial growth, sporulation and spore germination of Alternaria cassia causing Alternaria leaf blight of cowpea. Int J Chem Stud 2018;6(1):77-79.