Source Year: 2002

C. acutatum has become an increasingly important plant pathogen worldwide. With this background, a study was carried out to characterize the toxicity of liquid culture media from different isolates collected from diseased rubber leaves from Sri Lanka, and to identify some properties of the toxic principles. Liquid culture media from all isolates were toxic to rubber leaves and induced the anthracnose symptoms. Toxicity of the culture filtrate was not host specific and toxic substances were thermostable. Acetone soluble fraction of the culture filtrates retained the toxic activity and it was effective even at 700mg dry mycelium mass/ml.