...standard in publishing    
       
Home About_us Journals Corporatepolicies contact us frequentlyt ask questionsfrequentlyt ask questions

Standard Scientific Research and Essays (SSRE)


About Advertise Call for Paper Editorial Board Authors Instruction Submit Manuscript Conferences Associations Archive E-books


Standard Scientific Research and Essays Vol. 4(7), pp. 259-264 July 2016 (ISSN: 2310-7502)
Copyright 2015 Standard Research Journals

 

 

Research article

 

 

Comparative Efficacy of Different Fungicides against Late Blight Diseases of Potato incited by Phytophthora infestans (Mont.) de Bary and its Management

 

*1Siddique N. A and 2Swapon N. H

 

1Scientific Manager, Ejab Agro ltd. Thakurgaon, Bangladesh

2 Chief Operation Officer, Ejab Agro ltd. Thakurgaon, Bangladesh

 

*corresponding author E-mail: siddiqueibsc@yahoo.com

 

Accepted 1 July 2016

Abstract

Efforts made in present investigation to evaluate the concentration of a few commonly used fungicides for their comparative efficacy against Phytophthora infestans (Mont.) de Bary- the incited of late blight, with a view to select the most effective fungicides for the disease management. Six fungicides were selected among these, Sunoxanil 72 WP (Cymoxanil 8% + Mancozeb) showed the best result to prevent the late blight before appearance of the disease (Prophylactic measures) and Sunoxanil 72 WP (Cymoxanil 8% + Mancozeb) was combined with Contaf 5EC (Hexaconazol 5%) showed the most effective role to prevent the late blight after appearance of disease (Curative measures). The highest 99.70% of disease control and the highest yield (26.68 ton/ha) were recorded on fungicides containing 3.5mg/L Sunoxanil 72 WP (Cymoxanil 8% + Mancozeb 64%) with 3.0ml/L Contaf 5EC (Hexaconazol 5%) during 2015-2016. It was concluded that Sunoxanil 72 WP (Cymoxanil 8%+ Mancozeb 64%) acted as the best fungicide when applied as prophylactic measures. Sunoxanil 72 WP (Cymoxanil 8%+ Mancozeb 64%) was combined with Contaf 5EC (Hexaconazol 5%) showed the best result when applied as curative measures. The lowest 75.68 % of disease control and the lowest yield (15.67 ton/ha) were recorded on fungicides containing 2.0 mg/L Ridomil MZ 72 (Metalaxyl 8%+Mancozeb 64%) with 1.0 ml/L Autostin 50 WDG (Carbondaxim 50%) during 2014-2015. On the other hands when Actiphose was used with Mancozeb (Indrofil M-45) showed comparatively better performance. Plant growth was gradually prohibited for application of Carbondaxim along with the yield was gradually decreased.

Keywords: Potato, late blight, Management, Hexaconazole, Mancozeb, Sunoxanil 72 WP, Autostin50 WDG, Actiphose, Ridomil MZ 72, Disease index, Disease control.

 

 

 


Viewing options:

Abstract
Reprint (PDF)(433 KB)

Search Pubmed for articles by:
 

 

Search Google Scholar for articles by:

 

 

 

 
Copyright 2012 - 2016. Standard Research Journals Terms & Conditions Privacy Policy Help