Effect of bio control agent Trichoderma (T. viride and T. konnigiil on basal rot of Cloropytum comosum 'Iaxum' caused by Sclerotium rolfsii

Abstract

At present, the biological control of soil borne fungal diseases is becoming popular in foliage industryof Sri Lanka, which is a nature-friendly ecological approach to overcome the problems caused bystandard chemical methods of plant protection. With a suitable bio control agent pathogen can besuppressed and reduced the disease incidence could be reduced effectively. This experiment wasconducted over a period of six months in poly tunnel to identify a potential bio control agent for basalrot of Cloropytum comosum 'Iaxum' caused by Sclerotium rolfsii with five treatments of Trichodermaviride, Trichoderma konnigii and combination of Trichoderma viride and Trichoderma konnigii,Porrnarsol forte 80% wp and control. The mean disease incidences of above treatments were! .75,2.75, J .5, 1.75 and 10.75 respectively. It was revealed that Trichoderma viride and combination ofTricodernia spp. are suitable for the highly effective control of plant diseases caused by Sclerotiumrolfsi i.