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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 20, No. 1, 2016, pp. 33-38
Bioline Code: ja16004
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 20, No. 1, 2016, pp. 33-38

 en In vivo antifungal activity of neem oil and aqueous extracts against leaf spot disease caused by Cercospora abelmoschii check for this species in other resources on okra
CATARINO, ARICLÉIA DE MORAES; RODRIGUES, ANTONIA ALICE COSTA; DE QUEIROZ, JOÃO VICTOR JANSEN; FURTADO, LUCIANO MARINHO & SILVA, LEILSON LOPES SANTOS

Abstract

The cercospora leaf spot, caused by Cercospora abelmoschi check for this species in other resources Ellis and Everhart, is quite common in okra culture. Therefore, this study aimed to evaluate the efficiency of aqueous extracts of neem ( Azadirachta indica check for this species in other resources A. Juss), citronella ( Cymbopogon nardus check for this species in other resources (L.) Rendle), eucalyptus ( Eucalyptus grandis check for this species in other resources L.), ecolife®, A. indica oil and fungicide cercobin 700 PM® in control of cercospora leaf spot on okra in greenhouse. The extracts and neem oil were tested in concentration 10%, the fungicide cercobin 700PM® in dose 2.5 g.l-1, applied 10 days after pathogen inoculation by leaf spray and the citric biomass extract ecolife® in concentration 5.0 ml.l-1, applied 10 days before pathogen inoculation. All treatments, except ecolife®, were effective in controlling cercospora leaf spot and may be recommended as alternatives in agroecological systems.

Keywords
Abelmoschus esculentus; aqueous extracts; Cercospora abelmoschi; fungicide cercobin; greenhouse

 
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