April 23, 1904. 
THE GARDEN l N G WORLD 
353 
There can be little doubt that the enemy at work is the black 
Vine Veevil (Otiorhynchus sulcatus), a sort of black beetle with 
a moderately long snout, which carries on its work of destruction 
chiefly at night. Your best, plan will be tO' visit the house at 
nio-ht with a lantern. Before leaving off work at six, however, 
you should lay a white sheet over the border under the vines. 
Then, when you enter the house at night, turn the light on the 
Vines and at the same time give the rods a shake 1 . If there are 
any weevils upon them this will cause them to fall on the white 
sheet, and, being black, you will easily detect them. The speci¬ 
mens -should, of course, be gathered up quickly before they 
regain their feet and attempt to- run away and hide. Their usual 
hiding places are in cracks and crevices of the walls, as well as 
under clods on the border. All the defects in the wall should 
be cemented and other hiding places destroyed or done away 
with. 
Primroses with Leaves instead of Flowers. 
In a bed of Primroses and Tulips here several of.the Prim¬ 
roses have given rise to green leaves. Where this occurs the 
flowers are small or have no- effect for bedding purposes. Can 
you say what causes them to produce leaves below the petals ? 
(W. A.' D.) 
Possibly seed-s might have been collected from plants of this 
character or from those having a tendency to produce green 
leaves, such as those known in the varieties Jack-in-the-green, 
Galigaskins, etc. In order to avoid this in the future you 
should mark all those that are re-ally good in the bed for pro¬ 
pagation by division o-r for seed raising. Seeds -should only 
be collected from the very best and most showy flowers for the 
purpose required. It is impossible to-say what causes them to 
revert and produce green leaves, but occasionally in wild 
colonies something similar may be observed, and cultivation 
seems to increase this tendency. Plants that show this 
character would also be likely to- give a large percentage of 
plants showing the same peculiarity or something similar. 
Pot Roses with Blighted Leaves. 
Several of our Roses in pots have lost their bright- green colour 
and become blighted and browned. They looked the picture of 
health a few days ago. Will you be good enough to say what is 
the cause of it? (A. R. M.) 
In all probability it has been due to cold draughts of air upon 
the tender young leaves. Even- Roses growing in the open air, 
and thus perfectly hardened, as far as free exposure -to light and 
air can make them, are liable to- get browned and more or less 
completely destroyed even in May if we should have rough, cold 
weather, and especially east winds, about that time. For some 
time past the skies have been sunless, making the leaves of plants 
under glass more tender than they wo-uld otherwise be. Then on 
the advent of fine weather it is possible that you may have left 
the door open in order to> keep the house cool, or it may be the 
winds have blown in -at the side ventilators upon the tender young 
leaves. The plants may look unsightly for a time, hut they will 
gradually grow o-ut of -it later in the season when they make fresh 
growth under more genial conditions. In the meantime, while 
keeping them cool, you should endeavour to- avoid cold draughts 
striking upon the leaves, even if it is necessary to put a piece of 
tiffany over the ventilators when open to- break the force- of the 
wind. 
Sand for a Lawn. 
We have been recommended to use send on our lawn in order 
to improve the- turf. The object in this is no-t quite clear, and 
we should be obliged for your opinion on the subject ’ (F 
Hodgson.) 
It all depends upon the kind of sand, but more particularly upon 
the nature of your soil. If the soil is very stiff and inclined to 
wet, sand of any kind would be more or less of an advantage 
y making the soil more porous as the sand ge-ts worked into- it. 
home kind of soils would be benefited by shell-sand fro-m the 
sea-shore, which would improve the mechanical condition of the 
soil in the same way as pit or river sand. It is also- of a calcareous 
niiUure and would act in the same way as lime, only its action 
would he slower and more durable. On the other hand, if your 
° f a f ht and sandy character, no -advantage would 
J lalfo 7 US( Y 0 ^ Sand 01 an T kind,unless it is what is known 
‘ ; h ' ,? and ’ ^hich is of the nature of a manure, but rather 
ffS g n ab !, 0f permanent advantage to grass on poor, 
St 0n , the f^er k«nd, it wo-uld bS distinctly a dram 
de-cavefl ™ apP 7 a to P T Messing -of soil with or without well- 
manure tw man ,T- Tt I" rather klte “ the season to apply 
hrino- ahmn -r? d K 0 arc f y lave tune nor sufficient moisture to 
° 1 R c eca y aru enable it to become incorporated with 
the turf and amongst the grass-roots. If the grass has been cut 
it would do no harm to spread some good rich soil such- as is ob¬ 
tained from beneath the potting benches. It should first be sifted, 
however, to get rid of the st-omes and clods, then spread over the 
ground ; sweep it or scuffle it about with a broom to work it in 
amongst the roots of the grass, and then give- the lawn a good 
rolling. This will make it- level and smooth for the mowing 
machine by the next time this lias to be used. 
Marechal Niel Rose Failing. 
For some years past a fine plant of Marechal Niel Rose has 
been getting weaker and failing to give satisfaction. It has large 
thickenings at the base of the main stem. Do you think I can 
improve or restore it in any wa-y? (Rose.) 
It is possible by cutting back rather hard to induce the stem to 
throw out young shoots below the thickening. If you succeed in 
getting tlies-e shoots from the base of the plants, then the old stem 
might be cut away well below the thickenings, which are usually 
described as due to canker. Marechal Niel Rose is very liable 
to go- off suddenly in this way, especially if grown in pots. Yo-u 
should always be- prepared for it by raising young plants from 
cuttings, now and again, so that yo-u may have healthy young 
plants to take the place of those that go off in the way that has 
been described. The variety is liable to this malady, whether 
grown upon a stock or on its own roots. It may be described as 
having a weak constitution, and liable to get cankered, especially 
if the bark of the stem gets bruised or broken, accidentally or 
otherwise. Cuttings may be rooted during the summer time, 
when you can get short side shoots just becoming firm, or shoots 
may be -taken in the autumn, after the wood .is ripe, and put in 
pos of sandy soil, keeping them in a frame from which frost is more 
or less completely excluded. By spring those that hia,ve succeeded 
will be rooted and ready to be potted on. 
Names of Plants 
(G. W. Re-ad) 1, Muscari botryoides album ; 2, Scilla sibirica ; 
3, Lamium maculatum ; 4, Saxifraga Aizoon or some of its 
varieties ; 5, Saxifraga ligulata ; 6, Ara-bis albida flore pleno.— 
(T. D. W.) 1, Primula verticillata; 2, Iris reticulata; 3, 
Anemone blanda ; 4, Pulm-onariai saccharata ; 5, Primula denti 
culata.— (S. H.) 1, Spiraea Thunbergii ; 2, Berberis Aqui- 
folium ; 3, Lauras- nobiTis ; 4, Pmnus triloba flore pleno ; 5 , 
Forsythia vi-ridissima ; 6 , Erica mediterranea.— (A. Davison) 1 , 
Oth-onnacheirifolia; 2 , Iberis gibralt-arica ; 3, Primula acculis 
Double Sulphur; 4, Myosot.i-s . sylvatica var. ; 5, Cyclamen 
ibericum ; 6 , Arabis lucid a variegata.—(R. J.) 1 , Acacia Drum- 
mo ndi ; 2, Thunbe-rgia laurifolia ; 3, Acacia lineata ; 4, Brun- 
felsia calycina ; 5, Pellionia daveauana ; 6 , Peperomia metallica. 
—(W. T. G.) 1 , Popu'lus- alba; 2, Populus tremula ; 3, Salix 
daphnoides ; 4, Ribes sanguineum. 
Communications Received. 
J. C. Gillies.—W. R.— J. P. Dickson.—Barr and Sons.—H. 
Boshier.—James Long.—R. H. S.—E. A. S—M T — J R S 
—E. G. B.—S. H.—W. T—J. M.—E. A. R.— S. M.—D D R — 
J. R.—T. 0.—J. R. Y—A. P. M.—D. L.—F. T.—A W E 
CONTENTS OF THIS WEEK. 
PAGE 
Amaryllis at Chelsea . 339 
Belfast Fruit Importers’ 
Federation. 333 
Bouvardia, the ... . 342 
Carnations, border . 340 
Case, a hard . 346 
Currant bud mite on horse¬ 
back . 333 
Cyaniding on an established 
basis. 337 
Dog’s Tooth Violets. 338 
Eremuri . 341 
Fruit under glass . 335 
Gardeners and botany. 343 
Gardens, school... 346 
Gloxinias . 346 
Herbs, money in . 333 
Kitchen garden, cropping a . 340 
Kitchen garden, the. 334 
Margin, the value of . 342 
News of the week. 352 
Orchids, among the. 335 
Phlox decussata varieties for 
exhibition . 342 
Potatos . 336 
Questions and answers . 353 
PAGE 
Rose Bessie Brown . 344 
Roses, the art of pruning ... 341 
Societies: 
La Floralie, Dublin . 348 
Liverpool Horticultural 
Association. 347 
Manchester Royal Botanic 
and Horticultural. 348 
Royal Botanic Society. 347 
Royal Horticultural . 349 
Society and association 
^ notes .■.. 352 
Stove and greenhouse the . . 335 
Tomato "fields, Britain’s 
foreign.. 333 
Trees and shrubs, hardy. 334 
Trifles. 336 
Tulipa kaufnianniana. 345 
ILLUSTRATIONS. 
Hippeastrum Hermita. 339 
Rose Bessie Brown (see Sup¬ 
plement). 
Tulipa kaufnianniana. 345 
Tulipa kaufnianniana aurea 346 
