A severe root rot of tomato caused by Meloidogyne incognita and Rhizoctonia solani was associated with nutrient mobilization into gall tissue and root exudation. Root decay did not develop when root exudates were continuously removed by leaching. When leachates were collected from M. incognita-infected and control roots and applied to roots of tomatoes inoculated with R. solani alone, roots rec...

Pathogenic effects of 6 Fusarium spp., viz., F. equiseti, F. longipes, F. scirpi (Section Gibbosum), F. oxysporum (Section Elegans), F. pallidoroseum (Section Arthrosporiella) and F. solani (Section Martiella) were studied on sunflower plants. Symptoms produced by Fusarium spp., were root-, collar-, stemand seedling rots, damping-off, stunting, wilting, tip burning and reduction in growth. Wilt...

G. Guzmán, B.A. Latorre, R. Torres, and W.F. Wilcox. 2007. Relative susceptibility of peach rootstocks to crown gall and Phytophthora root and crown rot in Chile. Cien. Inv. Agr. 34(1):31-40. Crown gall (Agrobacterium tumefaciens) and Phytophthora root and crown rot (PRCR), caused by P. cryptogea, are two major limiting factors affecting peach (Prunus persica) production in Chile. At present, N...

Rhizoctonia solani, Fusarium solani, F. oxysporum, and Macrophomina phaseolina were found to be associated with root rott and wilt symptoms of faba bean plants collected from different fieldes in New Valley governorate, Egypt. All the obtained isolates were able to attack faba bean plants (cv. Giza 40) causing damping-off and root rot/wilt diseases. R. solani isolates 2 and 5, F. solani isolate...

Ganoderma colossum is a rare species of Ganodermataceae family with many biological and biochemical properties. It is associated with rot, wilt, dieback, and wood decay of many host plants such as Ficus carcica, Celtis laevigata, Pinus hondurensis, Callitris robusta, Eucalyptus citrodora, E. paniculata, E. puncata, and Phoenix canariensis. In Oman, this pathogen was isolated as new records from...

Charcoal rot of sorghum caused by the fungus Macrophomina phaseolina is a root & stalk rot disease of great destructive potential in most sorghum glowing regions. Improved, high yielding cultivars under great management tends to be very susceptible to the disease. M.phaseolina is a common soil borne, non aggressive and plurevourous pathogen that attacks plants. Whose vigor has been reduced by u...