Assessment of Tobacco Fields for the Prevalence of Verticillium dahliae in District Swabi, Pakistan

Field and laboratory investigations of tobacco plants were carried out to analyze the distribution Verticillium wilt caused by V. dahliae. dahliae is isolated from field Z (Tarkhai, Yarhussain region Swabi). Species Fusarium Actinomycetes detected in B (Shaheedan, Swabi), while no was these fields. identified based on its colony conidia morphology. The white, having oval spores septate mycelium with phialides. isolate also produced irregularly elongated dark brown black color microsclerotia various sizes. count for 3.61 × 108 conidia/ml. average diameter after 9 days incubation PDA CM media 6.55 cm 5.5 cm, respectively. biology spp. soil Swabi has not been studied. For first time, this study reported presence fields Swabi, KPK Pakistan. Detection isolation are necessary studying ecology virulence creating deterrent control strategies diseases.