, but is not generally as damaging on these crops. Successful long-term production of peaches is seldom possible if the disease is not controlled....

.) Disease Cycle and Causal Organisms Phytophthora root and crown rots are caused by a group of related soilborne fungi in the genus Phytophthora. Some of these fungi are common inhabitants of agricultural soils, whereas others are introduced on contaminated...
favorable. Some rootstocks appear to be most susceptible to infection during the spring and autumn, which are also the periods of the year when soil temperatures are most favorable for zoospore production and activity. Rootstock susceptibility and fungus...