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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.

View past Keeping Quality Forecasts »

2016 Preliminary Keeping Quality Forecast

The preliminary forecast is for POOR keeping quality.

As of April 1, there is only 1 of 10 possible points that favor keeping quality for the 2016 Massachusetts cranberry crop. The single point was awarded for the less than 4.4 inches of rainfall recorded during March. The final keeping quality forecast (available after June 1) may improve if temperature and rainfall conditions during April and May remain cool and dry.

This preliminary forecast suggests that fungicide applications should not be reduced this year. Additionally, fungicide efficacy can be enhanced by properly timing your applications and applying the maximum rate of fungicide recommended on the product label.

You may also consider holding late water to enhance fruit quality if cranberry buds have not yet broken dormancy.  As of now, buds in the Wareham area appear to remain dormant.

Follow me on Twitter @esaalau for weekly updates and pictures on bud dormancy starting next week, or call me (Extension 18) with any questions about fungicide programs for this year.

Erika Saalau Rojas (Extension Plant Pathologist)

2015 Final Keeping Quality Forecast

The Keeping Quality Forecast for June 2015 is for GOOD keeping quality.

We calculated 7 of a possible 16 points for the final 2015 forecast. The positive forecast derives mainly from the low rainfall averages observed during April and May (2 points awarded). The Keeping Quality Forecast (KQF) should serve as a reference when making fungicide management decisions against fruit rot.

A GOOD forecast suggests that in beds with little or low disease pressure, 2 to 3 fungicide applications may be sufficient to control fruit rot this season. That is not to say that you should make all fungicide decisions based on the final KQF. Other factors such as disease pressure, drainage conditions, overall plant vigor, and plant varieties should be considered when designing your fruit rot management program. For example, beds with a history of fruit rot may require more fungicide applications for adequate disease control. Bear in mind that proper bog management (drainage, irrigation, and fertilization), practicing late water, and removing crop debris (trash floods) may also help in increasing fungicide efficacy.

If you have any questions about fungicide efficacy, fungicide resistance management, or need help in deciding which fungicides to use this year, please feel free to reach Erika at (508) 295-2212 ext.18 or via email at esaalau[at]umass[dot]edu.

Erika Saalau Rojas (Extension Plant Pathologist)