Tag: Samuel Markell

The Rule of Thumb for Sunflower Disease: The Lighter the Lesion, the Bigger the Losses

Sunflowers may rival flax for the honour of “prettiest crop,” but this brightly flowered food and oilseed crop has another rather dubious distinction — disease magnet. From the very ominous sounding phoma black stem, to the insidious sclerotinia, Real Agriculture caught up with Sam Markell, extension plant pathologist with North Dakota State University to talk… Read more »