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Spud Smart Webinar: The Ins and Outs of Potato Yield Monitors

With increased input costs and skyrocketing land prices, profit margins are shrinking — it’s never been more important to have a good handle on what’s happening in your fields. Data generated from yield maps provide insight on how to manage your crop to improve your profit margin, your yield, or both. Whether this is your first season or your fifth using a potato yield monitor, our guest speakers will make sure you’re…

Black Cutworm Alert for Late-Planted Fields in Ontario

Yesterday, I checked a variety trial near Alliston that was planted late, on May 27. There was a moderate to high population of small black cutworms in the plots of late varieties, those that still had green foliage. Although the worms were small, there were also tubers with feeding damage. Small larvae of the black cutworm feed on the foliage in the evenings and remain buried in the soil near the plants…

Ontario Potato Production Update: Sept. 3, 2019

Harvesting fresh market and field fry potatoes continued over the long weekend.  Quality of both are very good, but yields are variable depending on the field. The storage crop is being top-killed according to the planting date. The spore traps keep detecting DNA of late blight in Dufferin, Simcoe and Norfolk Counties. This is a very important alert for growers in Dufferin County where there are still fields that will need at…

Ontario Crop Production Report: August 20, 2019

Finally, the Alliston, Ont., area that was hit hard by the summer drought received a much-needed rain over the weekend.  Mark VanOostrum had the details: North of Alliston 0.5 inches Alliston to Beeton 0.7 to 1.0 inches Shelburne to Orangeville 0.8 to 1.2 inches South 401 spud lane 2 to 3 inches The rain will take the pressure off irrigation for a few days and should help bulking the chip processing crop….

Ontario Crop Production Update August 10, 2019

According to Mark VanOostrum, the harvest of the early processing crop is going well. The yield is average, solids are slightly higher and a little bit of common scab is showing up. I am not surprised to hear about scab this season; common scab is more aggressive in dry years. It appears that the  beneficial bacteria, which compete with scab, suffer more than scab when it is dry. This results in more…

Digging of the Fresh-Market Crop Has Begun Near Leamington, Ont.

Things looked very different across the province from July 22 to 26 depending on the area.  Digging of the fresh-market crop has started near Leamington, Ont. Quality and size look good. Growers are digging the earliest planted fields in the Simcoe-Delhi region, but the area is dry. “Harvest has started for us and the crop looks good. We need some rain because harvesting and irrigating are not a great combination,” said Joe Lach,…

Late Blight Spores found in Ontario Spore Traps

High numbers of late blight spores were found in the filters of the two spore traps placed near Delhi, Ont. This area has received enough rain recently to create favourable conditions for disease development. Keep the crop protected, especially new growth.  It’s the best way to reduce the risk of outbreaks. Some early planted fields are being topkilled in Norfolk County. Tank mixing Reglone with Copper Hydroxide (e.g. Parasol) should ensure that spores…

Stress Factors and Management Practices for Sugar End Disorder and Stem-End Chip Defect

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 End Disorder and Stem-End Chip Defect Stress Factors and Management – A Spud Smart Webinar & Podcast

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…

Ontario Potato Crop Update

As heat and drought continue across the province, irrigation has been the order of the day.  Many fields are in the tuber setting stage, a stage that requires adequate soil moisture for an optimum tuber set.  Fields with closed rows and vigorous canopies keep the soil cool, which reduces stress.  Potatoes suffer when soils get hot in direct sun.  Many fields still have open canopies, the result of late planting.  Unfortunately, a…

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