Blue mold is a downy mildew disease of tobacco that is caused by Peronospora tabacina, a fungus-like protist in the family Peronosporaceae. Blue mold can cause severe damage to susceptible tobacco plants in many parts of the world. Since it is an obligate parasite, it must have living tobacco tissue in order to grow.
Although tobacco remains the primary host for this disease, other hosts including pepper plants and eggplants can also be reservoirs.
Famous quotes containing the words blue and/or mold:
“While my hair was still cut straight across my forehead
I played about the front gate, pulling flowers.
You came by on bamboo stilts, playing horse,
You walked about my seat, playing with blue plums.”
—Li Po (701–762)
“indolence read as abnegation,
slattern thought styled intuition,
every lapse forgiven, our crime
only to cast too bold a shadow
or smash the mold straight off.”
—Adrienne Rich (b. 1929)