b'University of Idaho researcher Pamela Hutchinson has developed a table to help growers determine the best tank mixes for their weed spectrum in each of their fields.PHOTO: PAMELA HUTCHINSONIts important to choose products for a mix that will control the weeds present in the field at their stage of Potatoes made easy development as determined by the product label.Tracking your potato data is easierDARIN GIBSONthan ever.Enter your information once and stay in sync with your agronomist and processors. Auto-fill and store your food safetymixtures. The table will be available as a University of Idaho extension bulletin program forms. And a lot more.for growers who want to assess the options and determine if any can work for their situation. Like Gibson, she stresses the need for mixing different modes Use AgExpert Field Premium for yourof action.potato production. Just $399 a year. Gibson also recommends using products which will control the most difficult to control weed. Its important to choose products for a mix that will control the weeds present in the field at their stage of development as determined by the product label, he says, reiterating Hutchinsons points. For fcc.ca/AgExpertField example, nightshade species can be a big problem, so choose a product for the tank mix strong on nightshade and mix it with a product able to control other weeds, but not as effective on nightshade.The principles of Hutchinsons work can be adapted to Canada as long as the products and tank mixtures are labelled for Canadian potato crops. De-spite there being fewer options available in Canada, there are some herbicides only registered for Canadian use, she says. Once its determined what weeds need to be controlled, a quick check of the table, keeping in mind current envi-ronmental conditions and what can be used in Canada, narrows the choice of products given the time available. 20 SPUDSMART.COM SPRING 2020'