Almost all fruit and nut trees, as well as most ornamental trees and shrubs (including many California natives), can develop Phytophthora rot if soil around the base of the plant remains wet for prolonged periods, or when planted too deeply. Worldwide, Phytophthora disease is a major problem for commercial or private farms, gardens, and trees. References: (1) H. S. Judelson and P. W. Tooley. Realistically, any crop, garden, or tree may be affected by Phytophthora root rot. The species were identified primarily on the … Author information: (1)Department of Plant Pathology, North Carolina State University, Raleigh 27695. Resistance to Crown and Root Rot Caused by Phytophthora capsici in a Tomato Advanced Backcross of Solanum habrochaites and Solanum lycopersicum. Typically, one of the main triggers is over-watering, leading to too much moisture around the roots of the plant. Phytophthora root rot of tomato 703 Q 2001 BSPP Plant Pathology (2001) 50, 702–707. Phytophthora root rot is a worldwide problem that can be treated but not completely eradicated. HortScience 28:1106-1108. Phytophthora capsici, Phytophthora cryptogea and Phytophthora nicotianae were isolated from tomato plants with symptoms of crown and root rot in plastic‐house crops in Sicilia and Calabria (southern Italy). Phytophthora cinnamomi causing root rot and wilt of nursery-grown native western azalea and salal. Several species of soilborne pathogens in the genus Phytophthora cause crown and root rot diseases of herbaceous and woody plants. Statistical methods The experimental design of the glasshouse trials was a complete-block design with three replications of nine treatments, while that in the phytotron (two chambers Infected specimens will likely die, unless removed and destroyed beforehand. Quesada-Ocampo LM(1), Vargas AM(2), Naegele RP(2), Francis DM(3), Hausbeck MK(4). To our knowledge, this is the first report of root and foot rot of tomato caused by P. infestans. A band of the expected size was produced for the infected stem base and root samples. Some crops threatened by this disease are: • Peas • Potato • Basil • Tomato • Pepper • Beans • Watermelon • Strawberry • Palm. Root rot can be caused by a variety of different fungi, and it can affect trees, shrubs, and plants. 7 Maloney, K.E., Wilcox, W.F., and Sanford, J.C. 1993. Raised beds and metalaxyl for controlling Phytophthora root rot of raspberry. Plant Disease Reporter 61:1045-1048. Until now, this pathogen was known worldwide to cause late blight on potatoes and tomatoes.