Back to top

Cranberry Station News

IPM Message

The IPM Message was updated June 14, 2019.  Please click here to view the message.

Kerb Use Approved for Dodder Control as Emergency Exemption for 2019 in MA

EPA issued a Specific Exemption under Section 18 of the FIFRA for the use of Kerb SC for the control of dodder in MA on May 2, 2019.  All applicable directions for use, restrictions, and precautions on the full EPA label, including WPS, must be followed.  A maximum of 2 PRE-emergence applications per acre can be made per season.  One application can be made at the rate of 2.5-5 pt/A, not to exceed 5 pt/A.  Alternatively, two applications can be made at 2.5 pt/A, not to exceed a total of 5 pt/A.  Although the herbicide should be watered in, do not apply just prior to a major rain or lengthy frost protection event.

Handler restrictions will likely apply.  Contact your handler PRIOR to using Kerb!!

You must have dodder on your bog to use Kerb under this Specific Exemption.  Scout NOW to find seedlings and apply once seedlings are found.  Search in the canopy and/or in areas where you off-load your fruit and trash.  These are the best places to find dodder seedlings.  Follow your application with 0.1-0.2 inches of irrigation or rainfall.  You must wait at least 20 days between applications.  A 75-day pre-harvest interval must be observed. The REI is 24 hr.  The exemption expires June 30, 2019.  MDAR requires that all applications are reported to them by November 30, 2019.  Labels and MDAR reporting forms will be available at all ag retailers, at the Cranberry Station, and on the Cranberry Station web site.

Kerb is Zone II-restricted. If you are in a Zone II, please call Hilary at the Station to determine if you qualify for a letter.  You cannot apply Kerb in a Zone II without a qualifying letter. Drop the water level in your ditches prior to application. Keep the planks in the flumes and plug all leaks prior to applications. If you can hold water on the bog after the application, please hold for 24-72 hours. Avoid all off-target application by using half-heads or screens as needed. Labels and MDAR reporting forms are available by clicking here.

Cranberry Frost Tolerance Reports

The Spring 2019 Cranberry Frost Tolerance Reports have started. To access weekly reports click here.

2019 EPA WPS Update and Train-The-Trainer Workshop

A 2019 EPA WPS Update and Train-the-Trainer Workshop sponsored by UMass Extension Risk Management Crop Insurance Program is being offered with 4 contact hours at the UMass Cranberry Station on Thursday, May 2, 2019 from 8:30 AM to 12:30 PM cost is $40.  For more details (or register) click here or contact Natalia Clifton at 413-545-1044 or email

Bogside Workshop

We are offering a Bogside Workshop on Wednesday, June 26th.  For more information click here.

2019 Preliminary Keeping Quality Forecast

The 2019 preliminary keeping quality forecast is VERY GOOD. For more information click here.

Spring Frost Tolerances of Cranberry Buds (2019)

The Spring Frost Tolerances Photo Fact Sheet for 2019 is now available. Click here to link to download.

UMass Cranberry Station Worker Protection Standard (WPS) Handler Trainings

Worker Protection (WPS) Training for cranberry workers in the handler category for Spring 2019 will be held at the Cranberry Station from 2:00pm-4:00pm on the last Wednesday of the month in March, April, May and June. For more information click here.

UMass Pesticide Safety Training

The UMass Pesticide Safety Training (4 contact hours) will be held on Thursday, April 25, 2019 from 8:00am - 12:00pm at the Rosebrook Event Center, TownePlace Suites Marriott, Wareham, MA. For more information click here.

Tune in to TickTalk with TickReport

A FREE live webinar series by Dr. Stephen Rich, Director of the UMass Laborator of Medical Zoology.  The second Wednesday of the month in February, March, April, May, and October 2019 from 12:00pm -1:00pm.  Preregistration is required to access webinars.


Click here for the full Webinar Schedule.