Getting to grips with downy mildew in rose stems
Rose varieties differ greatly in their susceptibility and tolerance to downy mildew, but many of the susceptible varieties are in high demand and fetch a good market price. (Image source: Capri23auto/Pixabay)
Dr Lisbeth Riis, founder and CEO at Scarab Solutions, has explained how getting to grips with downy mildew requires preventive measures, effective scouting, early intervention and regularly executed control