Response of pearl millet downy mildew (Sclerospora graminicola) to diverse fungicides

S. A. Deepak, G. Chaluvaraju, P. Basavaraju, K. N. Amuthesh, H. Shekar Shetty, G. Oros

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The inhibitory effect of 15 commercial and five experimental fungicides was assessed both in greenhouse and field experiments against Sclerospora graminicola, the causative agent of pearl millet downy mildew disease. Chemicals differed in anti-mildew activity. However, neither the pathogen nor the host plant was completely tolerant to any compounds tested. The plants depressed by fungicides in the germling stage recovered until formation of inflorescence, so this activity did not significantly influence grain yield. There was a significant correlation between antisporulant activity of compounds evaluated on detached leaf segments and their positive effect on yield performance. All compounds increased the grain yield of downy mildewed pearl millet when applied in the maximum doses tolerated by pearl millet. However, analysis of the cost-return budget showed that disease control <30% is uneconomic. Fungicides of the acylanilide series exhibited the highest protective effect (over 95%) and andoprim, drazoxolon and efosit were also effective.

Original languageEnglish
Pages (from-to)7-16
Number of pages10
JournalInternational Journal of Pest Management
Volume51
Issue number1
DOIs
Publication statusPublished - Jan 2005

Fingerprint

Sclerospora graminicola
downy mildew
Pennisetum glaucum
fungicides
grain yield
cost analysis
protective effect
disease control
inflorescences
host plants
greenhouses
pathogens
dosage
leaves

Keywords

  • Disease management
  • Downy mildew
  • Fungicide screening
  • Pearl millet
  • Sclerospora

ASJC Scopus subject areas

  • Insect Science

Cite this

Response of pearl millet downy mildew (Sclerospora graminicola) to diverse fungicides. / Deepak, S. A.; Chaluvaraju, G.; Basavaraju, P.; Amuthesh, K. N.; Shetty, H. Shekar; Oros, G.

In: International Journal of Pest Management, Vol. 51, No. 1, 01.2005, p. 7-16.

Research output: Contribution to journalArticle

Deepak, S. A. ; Chaluvaraju, G. ; Basavaraju, P. ; Amuthesh, K. N. ; Shetty, H. Shekar ; Oros, G. / Response of pearl millet downy mildew (Sclerospora graminicola) to diverse fungicides. In: International Journal of Pest Management. 2005 ; Vol. 51, No. 1. pp. 7-16.
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