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.
ا.د.علي كريم محمد الطائي | Prof.Dr.Ali Kareem Mohammed Al-Taae | 10048