Potato Grower

April 2018

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WWW.POTATOGROWER.COM 31 in potatoes for food. If seed potato plants are exposed, tubers with dicamba residues that are planted can have slower emergence, a reduced stand and injured leaves, all resulting in a lower yield. In a research study conducted in North Dakota, we found a 23 to 51 percent total yield loss when the mother plants were exposed to 2.8 pints of dicamba per acre and the seed was planted back the next year. However, dicamba residues do not seem to carry over in seed into the third generation from the initial exposure. What can be done to protect your potatoes from dicamba? Here are a few ideas to consider: • Talk to your neighbors and let them know you are growing potatoes and they are sensitive to many herbicides, including dicamba. • Place signs around the field to remind neighbors you are growing a potato crop that is sensitive to herbicides. • Train employees about proper spraying techniques, tank cleaning and identifying injury symptoms. • Scout fields regularly, especially walking field edges looking for herbicide damage. • Dedicate a sprayer solely to potatoes, only using potato-friendly herbicides. • Plant borders around the potato field to protect the crop from potential drift. Andy Robinson is an extension research potato agronomist with North Dakota State University and the University of Minnesota. He can be reached at aprobins@umn.edu. Tracks from known locations in the field to precise layers and areas in storage Advanced Track & Trace System RiteTrace FROM FIELD TO TRUCK TO STORAGE TO DETAILED BIN MAPS AND REPORTS NEW PRODUCT For more information visit greentronics.com or contact us at 519-669-4698 As a leader in precision agriculture systems we offer unique solutions specifically designed with the root and vegetable producer in mind. • Fully-automated traceability solution. Generates detailed Field and Bin Maps. Click on loads to pop up details and reports. • Provides clear links between fi eld and storage – track quality characteristics and provide transparency to buyers and processors. • Provides data for effi ciency analyses and a variety of management reports • Modular design to suit any size operation • Straightforward components are easy to install • Integrates with John Deere and Trimble displays 166850GreLtd12h.indd 1 5/23/17 2:50 PM Dicamba injury expressed in new shoots of potato seed tuber containing dicamba residues from exposure to the mother plant the previous season. Note that injury symptoms vary from plant to plant.

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