Fait partie de [OMA103]

2012 - 337 p.

Threat of bacterial blight on pomegranate in India – Mitigation by an integrated approach

Benagi V.I., Ravikumar M.R., Nargund V.B.

Pomegrante (Punica granatum L.), so called “fruit of paradise” is one of the major fruit crops of arid region. It is mainly grown in states of Maharashtra, Karnataka, Andhra Pradesh and Tamil Nadu.Bacterial blight of pomegranate, caused by Xanthomonas axonopodis pv. Punicae, considered to be a minor disease, was reported as bacterial leaf spot in the 1950s. At present this disease is observed on leaf,stem and on fruits, and has been responsible for the removing of many orchards in south India. Recently this disease was also observed in Rajasthan. A survey was conducted in North Karnataka during 2008-09 and 2009-10. Disease severity on the trees was 29.8 and 19.3% during 2008-09 and 2009-10 respectively. The disease was very severe in Mrig bahar (severity of 20.8%). Demonstrations were conducted for three years (2008-09 to 2010-11) in farmers fields over 6 locations involving various components like selection of hasta bahar treatment, proper training, sanitation, use of micro nutrients, use of organics and use of antibiotics along with copper compounds. The results indicated that before adopting the orchard integrated control management measures, the observed severity on the trees was up to 69%, and it was brought down to 3.0% in orchards where measures were adopted over three years. The average yield levels were 10 tons/hectare in demonstration plots. In orchard with nor integrated control, the disease severity on trees was up to 33.1% with average yield levels of 5.2 tons per hectare. Hence yield increased 4.8 tons, which worth Rs. 4.8 lakhs (1 lakh = 105), when compared to non-adopted orchards.

Mots-clés    

BACTERIOSE, EPIDEMIOLOGIE, GRENADE FRUITS, LUTTE INTEGREE

Citer cet article    

Benagi V.I., Ravikumar M.R., Nargund V.B. Threat of bacterial blight on pomegranate in India – Mitigation by an integrated approach. In : Melgarejo P. (ed.), Valero D. (ed.). II International Symposium on the Pomegranate. Zaragoza : CIHEAM / Universidad Miguel Hernández, 2012. p. 113-116. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 103). 2. International Symposium on the Pomegranate, 2011/10/19-21, Madrid (Spain). http://om.ciheam.org/om/pdf/a103/00006917.pdf