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Registration granted for a potato seed treatment to help manage pink rot

Syngenta Canada Inc. announces the registration of Revus fungicide as a potato seed treatment for the suppression of pink rot and control of seed-borne late blight in potatoes. Pink rot is a soil-borne disease caused by the pathogen Phytophthora erythroseptica that thrives in wet, poorly drained soils. Infection typically takes place pre-harvest, as the pathogen enters tubers through the stem end and lenticels. Tubers infected with pink rot will often decay during harvest and…

Influencing Potato Tuber Numbers

(The following content belongs to Yara International ASA and is part of Yara Potato Plantmaster. For more information visit www.yaracanada.ca) The numbers of potato tubers produced by each potato plant is influenced by agronomy and varietal potential. A large number of tubers per hectare will produce a crop of predominately small tubers, ideal for canning, salad or seed potatoes. A relatively low tuber number provides less competition per unit area and allows…

Growth Regulator Update

Use of the growth regulators MH (maleic hydrazide) and CIPC (chlorpropham) are integral to the potato industry, but there is always room for improvement – and even new avenues of use as the chipping industry evolves. First, let’s look at how MH works and how it is best applied. MH is effective in preventing sprouting as long as there is enough green foliage to translocate the chemical. It can be applied too…

Is There a Best Way to Manage Nitrogen?

A major project with studies in Manitoba and Alberta has been comparing diverse nitrogen management options to see if there might be a clear winner when it comes to irrigated potato production on the Prairies. The project was prompted by several considerations. “Potato is one of our crops where we apply the most amount of nitrogen. So any study that helps us to fine-tune nitrogen management to optimize yields and quality and…

Bayer launches potato herbicide Sencor STZ

Bayer has announced the launch of Sencor STZ, a powerful and innovative new herbicide for broad-spectrum control of all major annual grass and broadleaf weeds in potatoes. According to a news release, Sencor STZ combines the trusted control of Sencor with a new Group 14 mode of action, providing Canadian potato growers a new weed control option for their field and offering a convenient resistance management tool. As a pre-emergent herbicide, Sencor…

Increasing the efficiency of fertilizer use in potatoes

The federal government is investing $1.8 million with the University of British Columbia (UBC) to determine carbon sequestration and greenhouse gas (GHG) emissions, and develop beneficial management practices (BMPs) for increasing the efficiency of fertilizer use in potato crops, and in blueberry and forage crops. According to the Dr. Rickey Yada, Dean, Faculty of Land and Food Systems at UBC, the project will provide new science-based knowledge on net GHG emissions by…

Precision application of nitrogen in potato farming using drones

Researchers at Wageningen University & Research are testing the use of drones to measure nitrogen needs in potato crops. The “Toward precision agriculture 2.0” research program includes a group of potato farmers carrying out test runs with sensor observations by drones. The drone images show exactly where they should apply more or less nitrogen on their fields, allowing farmers to use the product more efficiently. “Dutch potato farmers apply an average of…

Late blight found in Ontario spore traps

Late blight was found yesterday (July 19) in the Delhi area, in a field with two spore traps.  There were only a few plants with dried up lesions. According to the grower, he had sprayed Curzate + Bravo + Copper as a preventative treatment. This week, spore traps caught late blight spores in the Shelburne, Alliston and Simcoe Delhi areas. It has been a very wet year so far, and it is…

New label changes approved for Paradigm and Pixxaro

Western Canadian growers looking to rotate process and table potatoes on fields previously treated with broadleaf weed herbicides, Paradigm and Pixxaro, can now plant a minimum of 10 months after using either of the herbicides. Fields previously treated with Paradigm or Pixxaro can be seeded after a minimum of 10 months to a variety of crops. Which crops can be seeded depends on the herbicide, but both include: spring wheat, spring barley,…

Dicamba drift a new danger for potato growers

Crop damage caused by herbicide drift should be a risk on Manitoba potato producers’ radar this year. Soybean producers are gearing up to plant Roundup Ready 2 Xtend soybeans following European Union approval last summer. The soybeans are tolerant to both glyphosate and dicamba herbicides. But dicamba drift can cause irreparable damage in neighbouring potato crops, said Andy Robinson, a North Dakota State University extension potato specialist, during a presentation on herbicide…

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