SUGAR ENDS AND stem-end chip defect are tuber disorders affecting product quality of processing and chipping potatoes, respectively. The environmental stresses causing the disorders occur during the growing season, but tubers appear asymptomatic until harvest or later in storage. Although there are many similarities between the two disorders, there are also some key differences. To understand the factors causing sugar ends and stem-end chip defect as well as management practices to reduce…
Sugar ends is a physiological disorder that can occur at a tuber’s bud or stem end. The disorder’s symptoms usually aren’t apparent until the tuber’s exposure to colder temperatures — around 10 C or below. The stress that causes the disorder’s development occurs early in the growing season and may be difficult to determine. Stem-end chip defect is another serious threat affecting tuber quality for chip potato growers. What are the causes…
COMMON SCAB, a bacterial disease that doesn’t affect yields but causes ugly lesions and cavities on infected tubers, which can render them unmarketable, is a pervasive threat in potato-growing areas across Canada. It has likely been around for as long as people have been growing potatoes, but researchers are still trying to determine why the pathogen is much more common in some fields than others and what the best methods are for…
Some of the most important trials Shaun Pelkey, agronomy manager at McCain Foods’ Valley Farms in Grand Falls, N.B., has been conducting over the past few years focus on planting whole seed as a way to increase payable yields and maximize grower returns. “McCain is trying to lead the way on this,” he says. “We have a big drive to increase yields in this part of the world and to be…
Potato producers know all too well that controlling Mother Nature is as likely as reigning in a two year-old. In either case, you’re doomed before you start. At the same time, there are ways to optimize water use efficiency and minimize the damage from floods and droughts. For this edition of Roundtable, Spud Smart assembled five industry experts to discuss the importance of water management to potato production, and how to deal…
For potato farmers, soil-borne pests and diseases are like that pesky younger sibling that’s always trying to get you in trouble: ignore them at your peril. Hazards such as Verticillium, nematodes, pink rot and Rhizoctonia can have a big impact on the bottom line if not kept in check. For this edition of Roundtable, Spud Smart sought input from three industry experts on the financial importance of these potato problems, and best…
Fall bedding in potato fields allows for soil preparation work to be done when growers typically have more time and labour available to them. In this system, growers usually irrigate, broadcast fertilizer as needed, plow, and then form beds into which they plant the following spring. For this edition of Roundtable, Spud Smart asked the following five experts to weigh in on their experiences with fall bedding. Louis Claassen, a potato producer…
While it is practiced extensively in the United States, soil fumigation is anything but common in potato production in Canada. But there’s a growing voice within the industry that views soil fumigants like chloropicrin as an important tool that should not be overlooked for ensuring healthier, better yielding potato crops. For this edition of Roundtable, Spud Smart asked the following six experts to weigh in on the use of soil fumigation in…
Growers and processors are always looking at how to improve farming practices that will boost yields in potato fields. Could using a narrower row width when planting potatoes be one way? Spud Smart asked the following four experts to share their views on tighter row spacings in potato production and how growers could stand to benefit: processing potato producers John Goff and Sheldon Wiebe and McCain Foods agronomists Scott Graham and Rhett…
Successful potato growers know that even the best soils can produce inferior yields and quality if steps aren’t taken after harvest to prepare their fields for the following year, whether it’s being planted with potatoes or another crop in their rotation. We asked the following experts to identify and discuss some of the best management practices they’d recommend for an effective post-harvest field care strategy: Yves Leclerc, McCain Foods director of agronomy…