تقصي انتشار الأمراض البكتيرية على القمح و الأعشاب المرافقة في سورية

الملخص EN

A survey of bacterial diseases on wheat and their associated weeds, was carried out during April and May in 2004.

The survey covered 63 wheat fields at Al Hasakah, Dará, Suweida, Idlib, Hamah, Homs and Aleppo provinces, where 97 samples of wheat , barley and other cereals were collected, and 192 bacterial isolates were recovered from the collected samples.

Only 47 isolates were pathogenic on wheat: 37 isolates were identified as Xanthomonas translucens pv.

undulosa, (Black Chaff Disease), and 7 isolates as Clavibacter sp.

(Yellow Ear Rot Disease), and 3 isolates as Pseudomonas syringae pv.

syringae (Bacterial Leaf Blight).

The frequency of the above three bacteria were 83.3, 11.3 and 5.4%, respectively.