In-vitro evaluation of fungicides, bioagents and aqueous leaf extracts against Alternaria leaf blight of cotton
Journal Title: Scientific Journal of Veterinary Advances - Year 2012, Vol 1, Issue 1
Abstract
All the six fungicides viz.,Mancozeb (75% WP); Carbendazim (50WP), Copper oxychloride (50WP), Captan (50 WP), Thiram (75 % WP), Chlorothalonil (75 WP) evaluated in vitro (@500, 1000 and 1500 ppm) were found effective against A. macrospora and caused significant inhibition of test pathogen over untreated control. However, Thiram was found most effective and recorded significantly highest mean mycelial inhibition (90.42%). This was followed by the fungicides, Captan (82.04%), Mancozeb (79.88%), Carbendazim(77.5%), Chlorothalonil (74.52%) and copper oxychloride (71.75%). All the five fungal and one bacterial bioagents/ antagonists evaluated in vitro against A. macrospora were found antifungal/ antagonistic against the test pathogen. However, T. viride was found most effective and recorded least linear mycelial growth (32.72 mm) with corresponding significantly highest mycelial inhibition (63.64%) of the test pathogen. The second and third best bioagents found were T. koningii and P. fluorescens, which recorded linear mycelial growth, respectively of 33.90 mm and 33.95 mm with corresponding mycelial inhibition, respectively of 62.33 and 62.27 per cent. All the six botanicals/plant extracts evaluated in vitro (@5, 10 and 15 % each) were found fungistatic/ fungicidal against. A.macrospora. However, significantly least mean radial mycelial growth (56.18mm) and significantly highest mean mycelial inhibition (37.47%) was recorded with Garlic. The second and third best botanicals found were onion and Tulsi which recorded second and third least mean radial mycelial growth, respectively of 58.52 mm and 62.51 mm with corresponding mean mycelial inhibition of 34.97 and 32.86 per cent, respectively.
Authors and Affiliations
V. M. Gholve| Department of Plant Pathology College of Agriculture,Marathwada Krishi Vidyapeeth, Parbhani – 431 402 (MS), S. M. Jogdand| Department of Plant Pathology College of Agriculture,Marathwada Krishi Vidyapeeth, Parbhani – 431 402 (MS), G. P. Jagtap*| Department of Plant Pathology College of Agriculture,Marathwada Krishi Vidyapeeth, Parbhani – 431 402 (MS), U. Dey| Department of Plant Pathology College of Agriculture,Marathwada Krishi Vidyapeeth, Parbhani – 431 402 (MS)
Serodiagnosis and molecular survey on letospiral abortions from sheep farms in Tabriz and surrounding areas
Leptospirosis is presumed to be the most widespread zoonosis in the world. The purpose of this study was to determine of seroprevalence of leptospirosis among the aborted ewes and in the same time, detection of bacterial...
Serological study of Newcastle disease in local chickens in the federal capital territory, Abuja, Nigeria
Newcastle Disease (ND) has been recognized for a long time as one of the major production and health constraints to rural poultry. There have been increasing reports by private veterinarians of ND outbreaks in commercial...
Serological and molecular studies of ovine and human toxoplasmosis with a trial of treatment of infected ewes
The aims of the present study were to diagnose toxoplasmosisin pregnant ewes and women serologically and molecularly, treat naturallyinfected ewes, and diagnose congenital toxoplasmosis. Blood samples were taken from 30...
Comparative evaluation of some surgical approaches to recovery and transfer of caprine embryos in the red Sokoto goat (RSG)
In this study a series of surgicaldemonstrations were carried out to compare between three approaches to the recoveryand transfer of caprine embryos in the Red sokoto Doe (RSD). Attempts were madeto surgically demonstrat...
Peritoneal fibrinolytic activity in equines subjected to small colon enterotomy and treated with heparin
This study sought to assess peritoneal fibrinolytic activity post-enterotomy of the small colon in equines treated with heparin. 10 adult equines were divided into 2 groups of 5 animals each: the control group (CG) and t...