Charcoal Disease (Biscogniauxia mediterranea) Control Using Biological and Chemical Compounds in Vitro

Biscogniauxia mediterranea caused a lot of damages to the forests of Zagros and Hyrcanian of Iran, process and host range of this disease is increasing. To control the B. mediterranea, amples of affected tissue to charcoal disease in the Khorramabad forests were collected and transferred to the laboratory. The experimental design was completely randomized design with four replications, and Duncan test was used to compare means. Results of dual culture showed B. mediterranea in propiconazole and Trichoderma harzianum treatments had the lowest area during the growth period respectively with 1.02 and 4.6 cm 2 . Treatments of propiconazole and T. harzianum respectively with 95.57 and 80.14 percent have highest growth inhibitory and treatments of copper oxychloride and T. virens have lowest growth inhibitory. The results of this study showed that the treatments of propiconazole and T. harzianum have best performance for control the B. mediterranea. Given that the function of biological agents and industrial components closer together and also the use of chemical pesticides in forests is limited Therefore, T. harzianum and T. virens can be used in the forest.