Antisporulant activity of leaf extracts of Indian plants against Sclerospora graminicola causing downy mildew disease of pearl millet

Methanolic extracts of forty plant species commonly growing across India were collected and have been screened for antisporulant activity against Sclerospora graminicola (Sacc.) Schroet., the causative agent of pearl millet downy mildew. The collection represented 38 genera of 30 families. The metha...

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Bibliographic Details
Published in:Archiv für Phytopathologie und Pflanzenschutz 2005-02, Vol.38 (1), p.31-39
Main Authors: Deepak, Saligrama Adavigowda, Oros, Gyula, Sathyanarayana, Syagadadu Giriyanna, Shetty, Nandini Pratap, Shetty, Huntrike Shekar, Sashikanth, Sheena
Format: Article
Language:English
Subjects:
Agave americana
Allium sativum
antifungal activity
Artemisia
Azadirachta
Citrus sinensis
Clematis
Dalbergia
downy mildew
Evolvulus
Evolvulus alsinoides
Helianthus
Murraya
Ocimum basilicum
Parthenium hysterophorus
pearl millet
Piper nigrum
Plant extracts
Sclerospora graminicola
Tagetes erecta
Thuja occidentalis
Zingiber
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Summary:Methanolic extracts of forty plant species commonly growing across India were collected and have been screened for antisporulant activity against Sclerospora graminicola (Sacc.) Schroet., the causative agent of pearl millet downy mildew. The collection represented 38 genera of 30 families. The methanolic extracts of nine species did not show any effect, whereas the activity of the extracts of Clematis gouriana, Evolvulus alsinoides, Mimusops elengi, Allium sativum and Piper nigrum were commensurable to that of the marketed botanical fungicides. The extracts of 11 species (Agave americana, Artemisia pallens, Citrus sinensis, Dalbergia latifolia, Helianthus annus, Murraya koenigii, Ocimum basilicum, Parthenium hysterophorus, Tagetes erecta, Thuja occidentalis and Zingiber offinale) exhibited remarkable antisporulant effect even after 10-fold dilution of the crude extracts while in the case of remaining 15 plants the crude extracts loosed activity after 10-fold dilution. The antisporulant activity of commercialised Azadirachta preparation (Nutri-Neem) was more pronounced than that of Reynutria based one (Milsana) and Sabadilla (veratrin), however, these botanical preparations held off the extracts of C. gouriana and E. alsinoides and synthetic fungicides.
ISSN:0323-5408
1477-2906
DOI:10.1080/03235400400007558