Cranberry Station News

First Fall Frost Tolerance Sheet for 2018
Ben Lear fruit

The first fact sheet for showing fall 2018 frost tolerances has been posted. 

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Tissue Nutrient Testing for Cranberries

If you plan to do tissue tests, collect your samples from mid-August through mid-September.  For more information click here or call the UMass Soil and Plant Nutrient Testing Laboratory at 413-545-2311.

Summer Scale

Summer generation scale infesting leaves and berries on the bog.  Please click here for pictures.

Summer Scale
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Reddish discoloration appears where the scale have been feeding. This is a massive infestation.

Degrees Days and Dormancy discussed

Please click here to read a news article regarding work being done by retired Director Carolyn DeMoranville on the degree day model for cranberry.

IPM Message

IPM Message is no longer available.  If you have any questions please call the Station 508-295-2212x21.

Spring Frost Tolerance 2018
Ben Lear bud

Posting of bud tolerance images and information has begun for the 2018 season.

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Final Photos of 2017 Fall Frost Tolerance Have Been Posted
Stevens cranberry at Rosebrook Bog

The final fall frost tolerance sheet for 2017 has been posted.  All cultivars have reached a deep maroon color and their deepest frost tolerance temperature.  For Ben Lear and new Rutgers cultivars this tolerance is 24°F.  Stevens tolerate 22°F at this stage until late October when some loss of tolerance accompanies extreme ripening and Stevens once more must be protected at 23°F.  Early Black and Howes tolerate 23°F at the maroon stage.  In some years, Howes have tolerated temperatures as low as 20°F at the maroon stage but this was not the case in all years.

24c Special Local Needs Labels Approved

MDAR approved Devrinol 2XT for use of multiple applications on new plants and the use of Intensity and Intensity ONE through chemigation. 

Click to see new pesticides labels

 

EPA Denies Section 18 Petition for Kerb

EPA reviewed the Section 18 request for the use of Kerb 3.3 SC to control dodder and determined our petition did not provide information that establishes an "emergency condition".  In order to use a pesticide not labeled for use, a non-routine event must be described and substantiated to confirm that the pest problem rises to the level of an "emergency".  EPA acknowledged that while dodder may be a difficult pest to manage, it is a routine condition.

Thus, Kerb CANNOT be applied to cranberry bogs! It is an illegal application.  Any questions, please call me.

Hilary Sandler, x 21

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