during 2001-2005, 79 isolates of rhizoctonia from seed rot, seedling damping –off, root rot and dry rot canker of sugar beet were collected. based on morphological characteristics, number of nuclei per cell and hyphal diameter, isolates were classified in two groups, binucleate (4 isolates) and multinucleate (75 isolates). among 75 multinucleate isolates ,27 isolates were identified as  ag4, 28...

abstract the root and foot rot of wheat is one of the important disease of wheat over the world. the root and foot rot of wheat observed more frequently in the resent years at khorasan province (northeast of iran). for investigation the causal agents, several samples were collected from wheat fields of north khorasan in 2007 and 2008. culture of diseased parts of plants on pda resulted. fusariu...

In a grove in north-eastern Morocco 2020, severe root rot and crown symptoms were noticed on olive trees (Olea europaea). Pythium schmitthenneri was identified as the pathogen based conidia morphology cytochrome oxidase subunit II (COXII) gene sequence analysis. Koch's postulates verified by re-isolation of fungus P. from artificially inoculated seedlings after pathogenicity test. This is first...

Crown rot caused by fungal pathogen is the most prevalent postharvest disease in banana fruit that results significant economic losses during transportation, storage, and ripening period. Antifungal effects of ultraviolet C (UVC) irradiation at doses varied from 0.01 to 0.30 kJ m-2 were investigated in controlling postharvest crown rot disease, maintenance of fruit quality, and the effects on a...

Scott, J. B., Gent, D. H., Pethybridge, S. J., Groom, T., and Hay, F. S. 2014. Crop damage from Sclerotinia crown rot and risk factors in pyrethrum. Plant Dis. 98:103-111. Sclerotinia crown rot, caused by Sclerotinia sclerotiorum and S. minor, is a prevalent disease in pyrethrum fields in Australia. Management involves fungicide applications during the rosette stage of plant development from au...

Abstract Base rot, caused by Ceratocystis paradoxa , can be a severe disease of pineapple planting material and result in poor establishment plants. Pre-plant dipping crowns potassium phosphonate is used to control Phytophthora cinnamomi root heart rot was tested for efficacy against base this study. Dipping 0.5% 2 min significantly reduced the severity on inoculated two trials with ‘MD2’ ‘73–5...