APS Press, American Phytopathological Society. In: Plant Diseases: Their Biology and Social Impact. The Irish potato famine and the birth of plant pathology. Reconstructing genome evolution in historic samples of the Irish potato famine pathogen. A., Heitman, J., Willerslev, E., Krogh, A., Ristaino, J. F., Seguin-Orlando, A., Wales, N., Orlando, L., Simon, Y. The 2009 late blight pandemic in the eastern United States – causes and results. B., Wyenandt, A., Danies, G., Judelson, H., Grünwald, N. Under favorable weather conditions, tomato and potato crops can be destroyed within days if left untreated. The pathogen is best known for causing the devastating Irish potato. Late blight of potato and tomato caused by Phytophthora infestans is a devastating disease worldwide and led to the Irish potato famine in 1845. K., Snover-Clift, K., McLeod, A., Johnson, S. The late blight fungus was first described in 1846 and has been widely reported from every major continent of the world (8). Tomato late blight is caused by the oomycete pathogen Phytophthora infestans (P. T., Everts, K., Secor, G., Seaman, A., Gevens, A. An ephemeral sexual population of Phytophthora infestans in the northeastern United States and Canada. PhD Thesis, Swedish University of Agricultural Sciences, Alnarp.ĭanies, G., Myers, K., Mideros, M. ![]() Boosting potato defense agaisnt late bligth. ![]() It is hoped that through this website, we can provide both a tool for potato and tomato growers for managing late blight, and a way to better understand the movements and impact of this disease.īengtsson, T. Phytophthora infestans is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or. As part of the effort to increase communication between growers, home gardeners, extension agents, and the research community, was formed as a means for tracking outbreaks of P. infestans occurred in the northeast, due in part to a lack of public understanding of the symptoms and impact of the pathogen (Fry et al. Cool, wet weather favors disease development hot, dry weather checks it. ![]() One infected plant in the entire field is enough to start an epidemic. As such, understanding the symptoms of the disease and what to do when it is detected are essential to preventing an outbreak from rapidly turning into an epidemic.In 2009, an epidemic of P. Late blight of tomato is a disease that progresses very rapidly. Late blight is one of the most devastating potato diseases. Asexual spores travel easily on the wind when the weather is cool and moist, and can rapidly infect neighboring fields. infestans) is also known as Phytophthora blight, tomato blight, early / late blight tomato, potato blight and late / early blight of potato. Late blight has been referred to as a ‘community disease’, due to its ability to spread rapidly from field to field under the right weather conditions.
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