The Garden Under Glass
Forfatter: William F. Rowles
År: 1914
Forlag: Grant Richards Ltd. Publishers
Sted: London
Sider: 368
UDK: 631.911.9
With Numerous Practical Diagrams From Drawings By G. D. Rowles And Thirty-Two Illustrations From Photographs
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298 THE GARDEN UNDER GLASS
—an ounce to three gallons of water—propagating from healthy plants, burning all growths when the plants are being cut down. Only perseverance in theseTpre venti ve measures will prove satisfactory. When the disease is
Diagram 62.—Rust: 1. On Chrysanthemums; a, leaf attacked ; <5, active spores; c, dormant spores; d, summer spores. 2. Carnation rust: a, showing leafattack; b, winter spores ; c, summer spores.
badly present I would advise syringing with sulphide of potassium at the rate of one ounce to three gallons of water.
Carnation Rust.—Requires practically the same pre-cautionary measures. I find it a good plan to dip the cuttings in the solution of sulphide of potassium as they are made and to keep a sharp look-out for its appearance afterwards. Fortnightly syringings with the solution will keep it well in hånd if it does not completely destroy it. Isolate all plants and cuttings received from other sources until it is certain that they are free from rust.