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Soybean cyst nematode was confirmed in Manitoba in 2019.
Crops, Features

Soybean cyst nematode in crosshairs for food-grade soybeans

Future varieties will resist diseases SCN and white mould

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Soybean cyst nematode and white mould are bad news for Canadian soybean growers and, although both are more of an issue to the east, SCN has been creeping into Manitoba for the last five years. In 2021, Manitoba saw its first field with symptoms, although the first finding of the nematode dates back to 2019.
“The little worm gets inside the root and injects something into the vascular tissue of the plant. This actually changes the biology of those plant cells and they start producing food for the nematode. It’s fascinating.” – Greg Tylka, Iowa State University.
Crops, Oilseeds, Pulses

SCN: The new tough guy on the block

Soybean cyst nematode’s survival mechanisms make it difficult to monitor and control

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Soybeans arrived in Manitoba in the early 20th century, but it took another 100 years for them to become a major crop. Now, almost two decades into the 21st century, an old enemy from the homeland has finally followed. Soybean cyst nematode (SCN) is already a serious pest in the soybean belt of the American Midwest. It is
“Don’t be happy to have one set of resistance genetics available for your farmers. Keep working to develop that second one because that first one will eventually wear out.” – Greg Tylka, Iowa State University.
Crops, Oilseeds, Pulses

Tracing roots for a strategy against soybean cyst nematode

How soybean ancestors helped scientists tease out SCN resistance

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If there’s an answer to soybean cyst nematode, it may lie in the soybean family tree. Soybean cyst nematode (SCN) has been a tough problem since it first appeared in North America back in the 1950s. It’s a soil-bound pest so it can’t be sprayed. Instead, the solution must be found through biology—finding a weak
“Unfortunately, for my state, and for much of the upper United States, the varieties that are available only have resistance from these two sources.” – Greg Tylka, Iowa State.
Crops, Oilseeds

Soybean cyst nematode evading resistance genes

Scant sources for genetic resistance make the trend inevitable over time

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Soybean cyst nematode (SCN) is a serious soybean pest throughout the American Midwest and, as of 2021, it’s been confirmed in five Manitoba municipalities. There are two ways a farmer can deal with soybean cyst nematode, according to Iowa State University plant pathologist Greg Tylka. “The first thing is don’t grow soybeans — but my
Soybeans in the R.M. of Thompson show symptoms of what was later confirmed as soybean cyst nematode.
Crops, News

New SCN case confirmed in central Manitoba

A field in the R.M. of Thompson has been confirmed and is showing symptoms of soybean cyst nematode

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Manitoba’s map of municipalities with confirmed soybean cyst nematode (SCN) will have to expand. In mid-July, Mario Tenuta of the University of Manitoba confirmed that SCN had been identified in a field in the R.M. of Thompson, an area that had not previously reported the presence of the troubling pest.  The finding comes after the
The white cysts on the plant roots begin the cycle, and are the only part of that cycle visible to the naked eye.
Crops

Soybean cyst nematode: Managing the ‘silent yield robber’

This soybean pest can be impossible to spot but can take a big bite

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Soybean cyst nematode (SCN) is a new-to-Manitoba soybean issue that’s the No. 1 soybean pest in North America, and one a U.S. specialist calls the silent yield robber. Soybean cyst nematode (SCN) is a microscopic roundworm that attacks the roots of soybean and is the No. 1 soybean pest in North America. John Wilson, extension
Almost all the existing soybean varieties on the market share a resistance gene.
Crops, News

Look past genetics for soybean cyst nematode management

Resistance is just part of the control equation

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Soybean growers have variety options when it comes to soybean cyst nematode (SCN), but pulse specialists say those varieties largely rely on the same type of resistance, one that has already come under fire in the U.S. The University of Manitoba, led by Mario Tenuta, has been on the watch for SCN in Manitoba since 2012, but this
Soybean cyst nematode has been confirmed in Manitoba for the first time.
Crops, Local news, News

Soybean cyst nematode confirmation presents challenge for producers

Pests like soybean cyst nematode and clubroot are present and rising in Manitoba fields, but the steps to prevent both of those pests are largely the same

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Farmers are being urged to keep equipment clean after the confirmation of yet another soil-borne crop threat in the province. Farmers got the unfortunate, but not unexpected, news that soybean cyst nematode (SCN) infections have been confirmed in four municipalities Sept. 16. The nematode, which can spread through water, has been present in North Dakota
Female soybean cyst nematodes feeding on soybean plant roots form bulbous, egg-filled nodules from which their young hatch the following spring. (Keith Weller photo courtesy ARS/USDA)
Crops

Soybean cyst nematode confirmed in Manitoba

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A damaging soybean pest that was expected to show up sooner or later in agricultural Manitoba has officially arrived. Crop surveys by University of Manitoba Ph.D. student Nazanin Ghavami with soil science professor Mario Tenuta and his students have turned up soybean cyst nematode at “extremely low” levels on soybean plant roots in one field
Soybean plant with nematode filled cysts.
Crops, News

Soybean Cyst Nematode confirmed in four Manitoba RMs

The populations remain low and manageable, but it will be a challenge

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A study at the University of Manitoba has confirmed the presence of soybean cyst nematode in the province. Soil scientist Mario Tenuta, of the University of Manitoba, have confirmed it visually and through molecular DNA methods in four fields, out of a total of 106 fields tested, in a study running from 2012-2019. At this

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