fungicide Archives - Page 4 of 6

Prevention not always the best bet

Sometimes, applying fungicide to durum as a preventative measure could increase disease

By Julienne Isaacs September 19, 2016

Better safe than sorry” is a mantra many producers live by. But in the case of durum, they might be better off ignoring it — at least when it comes to early and repeated fungicide applications. Dr. Bill May, a Crop Management Agronomist for Agriculture and Agri-Food Canada’s Indian Head Research Farm, and Dr. Myriam […] Read more

The wheat plants were stunted and yellow-green in colour, with older leaves that were brown and starting to die off. Newer growth was starting to show the same symptoms.

Cereals, Crops

Crop Advisor’s Casebook: Sickly wheat prompts distress call

A Crop Advisor's Solution from the February 10 , 2015 issue of Grainews

By Jeneen Burnett August 17, 2016

John, a producer who grows wheat, canola, peas and lentils on his 5,000-acre grain farm just west of Swift Current, Sask., was out spraying peas in mid-June when he spotted a problem with another one of his crops just across the road. The wheat in that field looked like it was dying off. Not long […] Read more

Crops

Costs of disease and weed resistance

By Glenda Clezy July 18, 2016

In Western Canada, a number of factors have helped keep disease resistance low, including variability of hosts, pathogens, environmental conditions, crop rotation and judicial use of fungicides. However, there is resistance. Weed resistance in both grass and broadleaf weeds has been identified in fields since 1988. Resistance has been identified to many herbicide groups including […] Read more

Canola field in bloom near Mervin, Sask on July 7, 2016. Crops are looking very good in northwest Sask.

Crops, Weather

Crops looking good, but fusarium risk is high

Weather conditions see many Saskatchewan farmers spraying fungicides

By Grainews Staff July 8, 2016

As crops in north-western Saskatchewan edge closer to maturity, Ian Weber is knocking on wood. “I’m at the point I don’t want to see bugs and hail would be really bad. Because I think we’ve got a monster coming in. Things look good,” said Weber, sales manager with Warrington AgroDynamic of Mervin. The Mervin-Turtleford area […] Read more

Disease pressure is more likely to be a problem on fields that have been seeded to lentil for multiple years running, and treated with the same modes of action.

Features

Apply fungicide when lentils start flowering

If you have valuable lentils out in your field, make sure you protect them from crop disease

By Julienne Isaacs June 21, 2016

Spray on time — don’t wait to see signs of disease. This is the advice Bobbie Bratrud, who farms near Weyburn, Sask., offers to first-time lentil growers. “Because they’re so valuable this year my advice would be to spray on time, and don’t wait to look for the disease. If you’re starting to see signs […] Read more

Crops, Potatoes

Pink rot fungicide resistance spreading

Phosphites offer a strong alternative control option for potato growers

By Julienne Isaacs June 3, 2016

In Prince Edward Island, potato growers may soon lose the use of metalaxyl, a key fungicide registered for use against Phytophthora erythroseptica, the pathogen responsible for pink rot. According to the results of a national survey, 50 per cent of isolates studied in Ontario and Eastern Canada are resistant to Ridomil, a single-site mode of […] Read more

Canola, Features

‘Canola and snow’ is not profitable

New research says mixing cultivars does not mitigate the effects of continuous canola

By Dilia Narduzzi January 27, 2016

Reconsider those plans to seed back-to-back to canola this spring, recommend Agriculture and Agri-Food Canada (AAFC) scientists. And they have new data to back that up. Dr. Neil Harker and other study researchers recently published the results of their five-year of the effects of continuous canola crops in The Canadian Journal of Plant Science. The […] Read more

Crops, Pulses

Researching root rot control in peas

Evaluating the benefits of seed treatments, soil amendments and soil tests

By Lisa Guenther January 25, 2016

There’s still a lot to learn when it comes to managing root rot, especially aphanomyces. When are seed treatments most effective? Do soil amendments help? And can soil testing help farmers pick the best pea fields? Fortunately, research is underway to answer those very questions. Dr. Syama Chatterton, an Agriculture and Agri-Food Canada (AAFC) researcher […] Read more

Crops, Pulses

Manage root rot before seeding

Saskatchewan plant disease specialist recommends good agronomy to reduce root rot

By Lisa Guenther January 25, 2016

Lentil and pea growers struggling with root rot need to manage the disease before the seed is in the ground, according to Saskatchewan Agriculture’s plant disease specialist. Fusarium, pythium, and rhizoctonia are root rot pathogens long familiar to farmers. But aphanomyces is a relatively new problem, only detected in Saskatchewan in 2012. “It probably was […] Read more

When scouting, pull plants. This photo shows blackleg stem cankers.

Canola, Crops

The sweet spot for fungicide use

Variety resistance and the level of disease pressure impacts fungicide effectiveness

By Lisa Guenther October 13, 2015

Early fungicide applications reduce blackleg severity when disease pressure is high and the varieties lack resistance, a researcher told delegates at the International Rapeseed Conference in Saskatoon. But fungicide has little effect when varieties are resistant or moderately resistant, he said. “We need to find kind of a sweet spot with fungicide use,” said Dr. […] Read more

U.S. grains: Corn rebounds from contract lows on short covering, bargain buying

U.S. livestock: Cattle futures come down from highs

Entomologist tests trap crops and marigolds to repel flea beetles at an Ag in Motion

GFM Network News