Blackleg is caused by a soil-borne pathogen called clostridium chauvoei, which is ingested by cattle when they graze. Spring, when grass is short, and fall, when the tastiest grass can also be short or scarce, are the most common times for a blackleg occurrence. | File photo

Blackleg incidents prompt vaccination reminders

Several animals died of blackleg on a farm in the Melville, Sask., area in mid-August. The incident prompted veterinarian Zachary Johnson to remind producers about the importance and effectiveness of vaccination against the fatal illness. “That producer in particular hadn’t vaccinated within the last five years for blackleg,” said Johnson about the case. “So we […] Read more

Blackleg battle requires longer canola rotations

Blackleg battle requires longer canola rotations

BRANDON — Rotation is the easiest way to control blackleg, and if two types of rotation are employed, farmers can squeeze the disease. One type of rotation is easy, said blackleg management specialist Justine Cornelsen of the Canola Council of Canada, while the other isn’t as obvious or simple. But with an integrated approach, blackleg’s […] Read more

Georgia Mitrousia of the University of Hertfordshire has shown that a major gene resistance, resistant gene Rlm7, is breaking down for U.K. blackleg in oilseed rape.  |  Chris McCullough photo

EU blackleg becomes harder to manage as genetic tools fail

Farmers in the United Kingdom could be facing trouble with rapeseed as new research warns of a resistance gene at risk in the crop. Oilseed rape is the third most important crop in the U.K., with a total of 2.2 million tonnes harvested in 2017. It is the third largest source of vegetable oil worldwide […] Read more