The relation of late blight development on potato foliage to temperature and humidity

@article{Thurston2008TheRO,
  title={The relation of late blight development on potato foliage to temperature and humidity},
  author={H. David Thurston and Kenneth W. Knutson and Carl J. Eide},
  journal={American Potato Journal},
  year={2008},
  volume={35},
  pages={397-406}
}
During four seasons, late blight on the foliage of potato plants spread to nearby plants during periods described by Wallin and his coworkers as “favorable,”i.e. 10 or more hours of relative humidity above 90 per cent and temperatures between 60° and 77° F. Over 56 per cent of the favorable periods in the 4 years occurred on days with rain. In most instances Hyre’s “moving graph” system of relating weather to blight would have indicated periods of spread accurately. The rate of spread of blight… CONTINUE READING

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