أول تسجيل لمرض الذبول الفيوزاريومي على نباتات شعر البنات في العراق

الملخص EN

The results of survey carried out in Mosul university gardens during the years 2006 and 2007 showed that disease incidence and severity of kochia wilt were gradually increased by age of plant from July until October .Disease incidence and severity for two years were 85.6% , 0.35 , 97.2% and 0.41 respectively on kochia.

Results of isolation and diagnosis showed that kochia wilt was caused by F.oxysporum Schlecht Snyder & Hansen .This is the first record of F.

oxysporum on kochia in Iraq.

To control the disease the following treatments: Alsa ,Topsin , Techazole ,Swich , Bettanol, Halex and Trichoderma were used .

Results indicated that Topsin and Alsa were the most effective fungicides in reducing the disease incidence to 61.67 and 61.67% respectively as compared with 100% in control treatment .

On the other hand Techazole and Halex were the best in increasing plant high, number of branches , fresh and dry weight of vegetative part.

Root dipping of plant seedling in fungicide solution was more efficient than the soil fungicide drenching of seedling in controlling the disease.