This section is from the book "The Gardener's Monthly And Horticulturist V18", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
F. R. & Son, Denver, Colorado.- The leaves sent are not affected by red spider, but by mildew. Syringe them well with warm soap-suds, and then sprinkle them with sulphur. Sometimes this trouble comes from having the roots colder than the atmosphere. When plants are growing the roots should be at least as warm as the leaves and branches.