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Keeping Quality Forecast

For more information on the Keeping Quality Forecast, please contact the Plant Pathologist, Dr. Erika Saalau-Rojas at (508) 295-2212, extension 18.

Historical Keeping Quality Forecasts


The forecast is GOOD for keeping quality.

As of April 1, there are 5 out of 10 possible points that favor keeping quality for the 2015 Massachusetts cranberry crop. The 5 points were based on the cumulative sunshine hours being low in February and high in March (3 points) and low average air temperature during March (2 points). High rainfall in March prevented us from getting any additional points. The final keeping quality forecast (available after June 1) may improve if temperature and rainfall conditions during April and May remain cool and dry. Unless the final keeping quality forecast worsens or you have areas with a history of high fruit rot disease pressure, the preliminary forecast suggests that fewer fungicide applications and /or using less than the maximum recommended fungicide application rate may be sufficient for proper fruit rot management. However, keep in mind that all chemical applications should be carried out according to product label instructions and that due to fungicide resistance concerns you should never use less than the lowest recommended fungicide rate.

As for holding late water this spring, it appears that there is no compelling reason to use late water to enhance fruit quality at harvest. Before considering this practice, assess if there was any major winter injury or if plants display any other stress symptoms and consider carefully your reasons for using later water.

Erika Saalau Rojas (Extension Plant Pathologist)

fruit rot



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