20 
Enemies of the Rose. 
_ A valuablo little book with the above 
title has been published by the National 
Rose Society of England. It contains 
excellent colored illustrations by Miss 
Beard, also some wood-cuts, and these 
should assist the rose-grower in identi- 
fying the various pests which are likely 
to attack his plauts. This useful handbook 
is not for general sale; it can only be 
obtained through a member of the National 
Rose Society, and its price is 2s. 6d. The 
treatment and remedies recommended for 
Great Britain should be equally valuable 
in Australia. te 
The numerous diseases caused by fungi, 
the number of beetles, bees, sawfties? 
- moths, scale, insects, aphides, frog hoppers, 
leaf hoppers, thrips, red spider, etc., which 
attack the rose amount to quite a pro- 
digious number, almost sufficient to deter 
‘the tyro from starting to cultivate the 
queen of flowers. Fortunately, the nature 
THE AUSTRALIAN GARDENER. 
of the numerous pests and how best to 
combat them are now pretty well under- 
stood, and all that is required is watch- 
fulness and prompt action when the pest 
is discovered. The remedies to be applied 
are simple 4nd inexpensive. 
A chapter on ‘ Diseases Caused by 
Fungi’ is contributed by Mr. G. Massee, 
Plant Pathologist, Kew Herbarium. 
Spraying for fungus trouble is purely 
preventive in its action. No disease can 
be cured by spraying. Spray in anticipa- 
tion of disease, and do not delay until 
too late. Mildew is present througbout 
the seaaon every year in greater or less 
abundance, but as a rule there are two 
marked waves of disease—one in the 
spring, the other appearing soun afte? 
midsummer. Cleanliness is of great im~ 
‘portance. The extension of mildew depends 
ov summer spores produced on the leaves 
heing conyeyed by wind and other agents 
to other healthy leaves, and the. appear- 
ance of mildew the following season de- 
Angust 1, 1908 
pends on the presence of winter spores 
that are formed on the white patches of 
mycelium growing on the wood. Every 
patch of mycelium should be scraped off 
and burnt. All fallen leaves and those 
that remain on infected branches should 
be collected and burned. All bushes that 
have been attacked by any kind of fungus 
whatever should be thoroughly drenched 
with a solution of sulphate of copper— 
one ounca in two gallons of water. The 
surrounding soil should also be similacly 
treated. This wash must be applied during 
mid-winter, before the leaf-buds begin to 
swell, otherwise the foliage will be de- _ 
stroyed, 
Rust of the rose may be prevented by 
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spraying the bushes just when the leaves 
‘are expanding, with a solution of potas- 
sim. sulphide, or liver of sulphur; 
‘dissolve half an ounoe of this in a gallon — 
ef waiter, and if a taqlespoonful of liquid 
glne is added to each gallon of solution 1¢ — 
will adhera much longer to the foliage. — 
— a 
— oe oe 
