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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PESTS AND THEIR EXTERMINATION 293 subjects as pelargoniums, cinerarias, arum lilies and calceolarias. Happily they are not difficult to destroy, but if passed unnoticed for a time will greatly disfigure the plants and cause considerable harm. The surest method of exterminating them is to fumigate the house or
Diagram 58.—Green-fly: 1, 2 and 3. Chrysanthemum, arum and pelar-gonium attacked. 4. Winged female. 5. Wingless female enlarged and actual size. 6. White-fly, enlarged and natural size.
frame with X.L. All vaporising compound as shown under fumigation. Failing fumigation the plants may be syringed with quassia or, in faet, almost any insecticide. Where only a few pests are seen they can be wiped off with a sponge.
Leaf-miner.—This pest directs its attention particu-larly to Chrysanthemums, and as it burrows into the tissues of the leaves it is very difficult to deal with. Every