Blue mold

From Wikipedia, the free encyclopedia

Blue mold is a downy mildew of tobacco caused by Peronospora tabacina. Blue mold can cause severe damage to susceptible tobacco in many parts of the world. Since it is an obligate parasite, it must have living tobacco tissue in order to survive.

Also, the mold Penicillium roqueforti used in producing the taste, and characteristic blue-green inclusions in Roquefort cheese.

From, a hops point of view: In 1909, upstate New York crops were hit with the downey mildew sphaerotheca humuli, often referred to erroneously as ‘blight’ or ‘blue mold.’