GFM Network News



Slow spring increases root rot risk

Slow spring increases root rot risk

Early-seeded pulses may be setup for root rot concerns this year, given the cold spring and saturated soils

Mud may have kept you out of fields this spring, but pulse experts warn that root rots might be plenty active under the surface. Cool temperatures and soil moisture curbed producer efforts to access fields this year. The province estimated that only nine per cent of seeding was complete in Manitoba after the first week


Pearce: Multiple modes of action an emerging reality for fungicides

As growers face more challenges from weeds, diseases and insects, many researchers, agronomists, advisers and farmers have shifted thinking from “control” of pests to “managing” them. Some of this trend is attributable to single-mode-of-action products and a reliance on one or two chemistries or technologies — but the adaptability of weed, disease and insect species

A close-up of a lower stem lesion on soybean caused by phytophthora.

Phytophthora a growing risk to soybeans

The once-rare infection is now the No. 2 cause of soybean root rot in Manitoba

The threat of phytophthora is on the rise in Manitoba. Results from a 2017 disease survey show it’s becoming common enough soybean growers will need to keep it top of mind as they plan their rotations this year. About 35 per cent of tested soybean crops in Manitoba were positive for phytophthora, although fusarium was

Fusarium in wheat.

Beneficials on the rise against soybean aphids, root rot, fusarium in fields

Manitoba Insect & Disease Update for August 2

Diamondback moth continues to be a concern in some areas, although it is the pupa stage that is now dominant in some fields. Soybean aphids surpassed economic threshold in some fields. In some soybean fields natural enemy populations seem to be building in response to the soybean aphids. Bertha armyworms are being monitored, and high levels of larvae have



Four canola diseases to watch for

Four canola diseases to watch for

Is that canola crop afflicted by blackleg, root rot, both, or something else entirely? It’s a messy question farmers and agronomists encounter every year. Presenters tried to untangle those problems at CanoLAB in Vermilion this winter. Here are four diseases to watch for in canola fields this summer, and tips on diagnosing them.

Soybean stems displaying the typical dark-brown lesions extending upwards from the soil.

Root rot races revealed

The knowledge will help farmers and researchers plan 
their response to the soybean disease

Agroundbreaking study has determined what are the most prevalent races of phytophthora root rot found in Manitoba soybean fields. The most prominent are Races 4, 25, 28 and 3. The most common is Race 4, according to the study, completed through the Pulse Science Cluster and funded by the Manitoba Pulse and Soybean Growers and


A sclerotinia-infected canola stem. Eastern Prairie crops are expected to face added disease pressure. (Photo courtesy Canola Council of Canada)

Rain increases disease pressures on eastern Prairies

CNS Canada — The recent batch of wet weather across parts of Saskatchewan and Manitoba have been a welcome relief to some fields that were suffering from excess dryness. However, soggy conditions have also enabled certain disease pressures to rear their ugly head, according to some government specialists. “Root rot is showing up in peas