Shakespeares reference in King Lear (Act iii., Sc. iv.) may be quoted as evincing acquaintance with mildew in the 17th century, as also the interesting Rouen law of Loverdo (1660).
Erysiple graminis, a mildew of grasses, has caused great loss in various countries; Dilophia graminis sometimes causes deformities of the leaves and inflorescence; another somewhat similar fungus, Ophiobolus graminis, attacks the leaves and stalks near the ground, completely destroying the plants.
The Spanish vines have suffered, like those of France, from mildew and phylloxera.
In the same way the disease caused by the mildew organism may be counteracted by a slight addition of alcohol and tannin.
The cakes are liable to become mildewed, and require constant turning and occasional rubbing in dry " poppy trash " to remove the mildew, and strengthening in weak places with fresh poppy leaves.
The trees often suffer from mildew, which is best prevented by keeping the borders of the peach house clear and sufficiently moist and the house well ventilated, and if it should appear the trees should be sprayed with 1 oz.
In 1887 to 1895 a number of fair wines were produced in each year, and the first really good vintage of the post-mildew-phylloxera period was that of 1888.
Peronosporaceae are a group of endophytic parasites - about ioo species - of great importance as comprising the agents of "damping off" disease (Pythium), vine-mildew (Plasmopara), potato disease (Phytophthora), onion-mildew (Peronospora).
The fungus, which is chiefly within the leaves and stems, seldom emerges through the firm upper surface of the leaf; it commonly appears as a white bloom or mildew on the circumference of the diseasepatches on the under surface.
33-53, regulations dealing with the appearance of patches of mould or mildew on the walls of a house.
Flaking and scaling set in; hard crusts of mildew formed, dissolved and re-formed with changes of weather over both the loosened parts and those that remained firm.
The only point of practical interest requiring mention here is the very singular fact attested by all peach-growers, that, while certain peaches are liable to the attacks of mildew, others are not.
At this season roses, grape vines and other plants are often affected by mildew; an effectual remedy is to paint the hot-water pipes with a mixture of sulphur and lime, put on as thick as ordinary whitewash, once each week until it is checked; but care must be taken not to apply it on any surface at a higher temperature than 212°.
If weather is cold and backward, however, and in very northern regions, care must be taken not to stop firing too soon, or the plants will mildew and become stunted.
If grape vines show any signs of mildew, dust them over with dry sulphur, selecting a still warm day.
Some peaches have globular, others reniform glands, others none at all, and these latter trees are much more subject to mildew than are those provided with glands.
Like the Phylloxera (q.v.; also Wine), the mildew is in its origin probably American.
The mildew is in its turn attacked by a fungus of the same tribe, Cicinnobolus Cesatii, which lives parasitically within the hyphae of its host, and at times even succeeds in destroying it.