Aetiology and causal agents of mango sudden decline disease in the Sultanate of Oman

A. O. Al Adawi, M. L. Deadman*, A. K. Al Rawahi, Y. M. Al Maqbali, A. A. Al Jahwari, B. A. Al Saadi, I. S. Al Amri, M. J. Wingfield

*Corresponding author for this work

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Mango sudden decline is a recently introduced, economically serious disease in Oman. Affected mango trees have wilting symptoms that usually begin on one side and later spread to involve the entire tree. Trees exude amber-coloured gum from the bark of their trunks or branches and vascular tissues are discoloured. Having entered Oman in the recent past, survey data is presented that shows the disease to have spread throughout the northern part of the country. Evidence is presented that the vascular wilt pathogen Ceratocystis fimbriata causes mango sudden decline disease in Oman, possibly in concert with Lasiodiplodia theobromae and the recently described Ceratocystis omanensis. Isolates of these fungi from affected trees, cause infection and can be recovered from inoculated seedlings. Bark beetles (Hypocryphalus mangiferae) are shown to carry C. fimbriata and L. theobromae and are presumably responsible for transmitting both pathogens to healthy mango trees. Acting as a wounding agent and vector, the bark beetle is likely to have assisted the rapid spread of the disease across Oman.

Original languageEnglish
Pages (from-to)247-254
Number of pages8
JournalEuropean Journal of Plant Pathology
Volume116
Issue number4
DOIs
Publication statusPublished - Dec 2006

Keywords

  • Ceratocystis fimbriata
  • Ceratocystis omanensis
  • Hypocryphalus mangiferae
  • Lasiodiplodia theobromae

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Horticulture
  • Plant Science

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    Al Adawi, A. O., Deadman, M. L., Al Rawahi, A. K., Al Maqbali, Y. M., Al Jahwari, A. A., Al Saadi, B. A., Al Amri, I. S., & Wingfield, M. J. (2006). Aetiology and causal agents of mango sudden decline disease in the Sultanate of Oman. European Journal of Plant Pathology, 116(4), 247-254. https://doi.org/10.1007/s10658-006-9056-x