208 THE ORCHID REVIEW. [JULY, 1914, 
copious supplies of water to stagings and paths, whilst all ventilators should 
be closed for about an hour or so, and these means will effectively produce 
a nice growing atmosphere. Later in the evening the top ventilators 
should then be opened, enabling the plants to enjoy somewhat cooler and 
drier conditions at night. 
Thrip and red spider are often troublesome at this season, and must be 
got rid of, and the new Phytophiline is to be strongly recommended, for its 
effect is more deadly on insect pests than any fumigant, and at the same 
time possesses none of the disadvantages attendant with nicotine 
preparations. | 
Now that the weather is hot and fire heat unnecessary, it may be wiseto 
thoroughly overhaul the heating apparatus, to ensure it being in proper 
working condition when required somewhat later in the year. | 
Cattleyas gigas and aurea will now be in full growth, the former 
probably showing the flower buds at the base of the spike, and these grand 
Orchids should be suspended near the roof glass, where they will get the 
maximum amount of light, only shading them with tissue paper during the 
middle of the day. Being thus elevated, they will dry somewhat quicker 
than those plants more shaded on the staging, and the best way to apply 
water will be to immerse them in a tepid rain-water tank, holding them 
there until the whole compost is wetted. 
Scale is sometimes troublesome about this season, and the favourite 
spots for this pest are on the old bulbs of Cattleyas, and often at the 
apex, where the leaf joins, but it also gives its attention to the rhizomes, 
and, when once allowed to become settled, is difficult to eradicate. 
Dendrobiums will now be in full growth, and must receive 4 good 
supply of water daily, with liberal overhead spraying morning and evening, 
whilst the new growths should be periodically examined and neatly staked 
and tied. 
Established plants of Vanda ccerulea will be in full root and leaf action, 
and much water and spraying can now be given, especially if exceedingly 
bright and sunny weather prevail, whilst plants of spring importation 
should be coming away very nicely. 
Owing to this being the season of holidays, or much open-air recreation, 
many amateurs prefer to cultivate those species which will give a bright 
display during the long dull days of winter, but where a show of Cattleyas 
and hybrids is desired for this and the following month the following will 
give much satisfaction :— 
Cattleya Gaskelliana, Warscewiczii (gigas), and Harrisoniana. 
Lelia purpurata and tenebrosa. : 
Leliocattleya bletchleyensis, callistoglossa, Canhamiana, Dominian4 
Nysa, Veronique, and others. 
