Dry-rot is caused by a fungus which attacks the rhizome of the 
plant. It is often produced by burying the rhizome, or base of the plant, 
in the compost. Cypripediums are susceptible to it. Large healthy growths, 
when attacked, show a sickly pale color in the foliage, which on examination 
of the base, are found discolored or of light brown appearance. If the 
affected portion is quickly removed with a sharp knife, it will usually give 
no further trouble; otherwise, it will travel along the rhizome and destroy 
the plant. 
Spot. The appearance of small, dark brown spots on the leaves 
and pseudo-bulbs is usually an indication of cold and overwatering. The 
affected parts should be slit with a sharp knife, and a mixture of charcoal 
and sulphur rubbed on the wound. When they make new growths, the 
plants should be placed in a brighter and more airy position to induce a 
better growth. This disease is highly infectious and may be transmitted 
to a healthy plant by an unclean knife used to cut off the diseased parts 
of another. 
Thrip and Scale. Frequent syringing with a nicotine insecticide 
with soap added, will control these pests. It is good practice from May to 
October to use this insecticide fortnightly as a precaution. Use a fine nozzle 
and apply all force possible. 
Cattleya Beetles. These can be controlled and, in fact, eliminated, 
by systematically spraying with RED ARROW to which soap has been 
added. 
Snails and, Garden Slugs are one of the worst pests. As they do 
their work at night, many people fail to account for the damage done to 
young shoots, roots, and flower-buds. KILSLUG placed on the benches in 
the late afternoon will attract them, and they will be found dead in the 
morning. 
HOUSE CULTURE 
There are a number of varieties which grow successfully in 
dwelling-houses, and these we have indicated below. While the conditions 
are apt to be dry and more subject to drafts, they will thrive very well if 
one keeps the foregoing directions in mind and uses a fine handspray on 
the foliage on bright days. The use of a metal tray under the plants filled 
with pebbles and kept damp, will assist greatly in keeping the air moist 
around the plants. 
C. Bowringiana 
C. Gaskelliana 
C. labiata 
C. Trianae 
L. anceps 
Cyp. insigne 
Cyp. insigne, Harefield Hall 
Cyp. insigne, Sanderae 
Coelogne cristata 
One. splendidum 
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