In vivo EVALUATION OF FUNGICIDES AND BIOCONTROL AGENTS AGAINST ANTHRACNOSE OF SORGHUM
MEENAKSHI RANA
School of Agriculture, Lovely Professional University, Phagwara-144 411, Punjab, India.
YOGENDRA SINGH
College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, India.
SEWETA SRIVASTAVA *
School of Agriculture, Lovely Professional University, Phagwara-144 411, Punjab, India.
*Author to whom correspondence should be addressed.
Abstract
Sorghum (Sorghum bicolor (L.) Moench) crop attacked by several foliar pathogens, causing different types of leaf spot diseases. Anthracnose of sorghum caused by Colletotrichum graminicola is one of them. This disease of sorghum affects stem, leaf, peduncle, inflorescence that directly or indirectly affect crop productivity and quality of produce resulting around 70% yield losses. This study aimed to determine the effect of one, two and three foliar sprays of Trifloxystrobin, Trifloxystrobin+ Penflufen, Blitox 50, Fosetyl- Al, Saaf , Benomyl and Quintal and antagonistic bioagents; Trichoderma harzianum, Pseudomonas fluorescens and combination of both selected biocontrol agents against anthracnose. The results revealed that Trifloxystrobin+penflufen was found most effective in reducing the infection rate (0.026 unit-days), Percent Disease Index (35.78%) and Area Under Disease Progress Curve (417.400) as well as increasing green fodder yield i.e. 306.7 q/ha and 370 q/ha in 2014 and 2015 respectively.
Keywords: Anthracnose, AUDPC, antagonists, infection rate and PDI.