Newly released this spring, the fungus Sarritor is being promoted as a non-chemical cure for dandelions. Well- in my test of one lawn it has worked. And not in ideal conditions. It was applied last week on a pleasant day but the week deteriorated with snow by the weekend. The homeowner Bruce just e-mailed me to say it has killed all his dandelions and he is very pleased, I will follow up with him later to see if it is a long term control or just a short term cure.
Developed at McGill University this native Canadian fungus - based on Sclerotinia minor - seems to work. Stay tuned.
UPDATE: Available in Calgary at Green Gate Garden Center.