Mahmoud Ali Abdallah Elmoflehi ^(1)*, Ali Abdallah alqathy⁽¹⁾  Hesham Abdaraqib Alaiany⁽¹⁾  and  Zakaria Hossin Algithy⁽¹⁾

(1). Plant Protection Department, Faculty  of Agriculture, Food and Environment, Sanaa,   Yemen.

(*Corresponding author: Dr. Mahmoud Ali Abdallah Elmoflehi, mel_moflehi@yahoo.com)

Received: 3/09/2022           Accepted:22/01/2023

Abstract: 

This study was conducted (2019-2020) for the purpose of surveying and estimating the incidence of Yemen coffee tree wilt disease, Coffea Arabica, and isolating the pathogens associated with the disease in Sana’a Governorate, Manakhah  (East Harz) and Sa`afan Districts. The percentage of dead trees was 13.46% and 5.77%, and the percentage of trees showing signs of wilt was 16.7% and 11.99% in each of Manakhah  and Sa`afan  Districts, respectively. The wilt-causing fungus Fusarium oxysporium were Isolation  from the soil and roots of coffee trees, where four strains of the fungus appeared, namely pink, white, yellow and violet. Seven parasitic  nematode genera were associated with coffee tree roots,(Tylenchus, Aphelenchus, Helicotylenchs, Xiphinema, Pratylenchus, Rotylenchus and Rotylunchulus).

keywords: coffee yemen, wilt, yemen, nematodes,Fusarium.

Full paper in Arabic: pdf