What is the temperature range at which SBR can survive?
We have found varying reports and very limited scientific information on this. Given that the soybean rust pathogen is an obligate parasite and has no overwintering spore stage, we believe that it will not survive where its preferred hosts cannot survive. In the U.S. , this means areas that do not freeze for extended periods in the winter, such as along the Gulf Coast typically in Southern Florida and Southern Texas . So the temperature range would be 32 F and above although the information we have found suggests optimum temperatures for rust development tend to be in the range of 65 80 F.
