Indian Journal of Virology

  • Year: 2005
  • Volume: 16
  • Issue: 1and2

P.68. Survey and awareness programme on peanut stem necrosis and peanut bud necrosis diseases of groundnut in northern Karnataka

  • Author:
  • V.B. Nargund1, Somasekhar 2, M.B. Patil3, A.G. Sreenivas1
  • Total Page Count: 2
  • DOI:
  • Page Number: 68 to 69

1College of Agriculture, UAS Campus, Bheemarayanagudi, Dist.: Gulbarga-585287.

2Regional Agricultural Research Station, UAS Campus, Raichur-584101.

3College of Agriculture, UAS Campus, Raichur-584101.

Abstract

Peanut stem necrosis disease (PSND) is a new viral epidemic disease of groundnut caused by Tobacco streak virus belongs to ilar virus group. Survey on peanut stem necrosis disease (PSND) and peanut bud necrosis disease (PBND) was carried out in adjoining districts of Andhra Pradesh viz., Raichur and Gulbarga districts of Northern Karnataka in farmers’ fields during rainy and post rainy season of 2002. Awareness programme on identification, differentiation and loss caused by PSND and PBND was given to officers of Karnataka State Department of Agriculture of Raichur and Koppal districts during bimonthly workshop under Training and Visit system. Orientation on management strategies was illustrated to the officers. Local language (Kannada) literature on PSND was prepared in the form of leaflet and distributed to Agricultural Officers and field staff. Wall posters on PSND were prepared and they were displayed in different villages of the above districts and also displayed in Krishimela conducted by University of Agricultural Sciences, Dharwad. Simultaneously the information on PSND was supplied to Krishi Vigyana Kendra, Raichur for further dissemination to farmers. Survey work revealed that, in Raichur district Peanut bud necrosis disease was observed and it ranged from 1.0 -3.0%, thrips population ranged from 0-3.6/flower in groundnut and 0–3/flower in Parthenium. In Gulbarga district peanut bud necrosis disease ranged from 1–90% (90% in one isolated field). The fields were almost free from weeds but on bunds Parthenium, Tridax, Acaranthus and grasses were observed very commonly. PSND was not observed in groundnut field. However, on sunflower a near by field of groundnut, 7% of sunflower necrosis was observed for which the causal agent is Tobacco Streak Virus. Thrips population on sunflower ranged from 100 - 150/head in both healthy and diseased plants. There was no correlation between number of thrips per terminal bud of groundnut with PBND. Further, type of soil has no effect on the incidence and severity of the disease.