July 2, 1898. 
THE GARDENING WORLD 
691 
ORCHIDS. 
Clean Healthy Plants at Low Prices. 
RETARDED LILY OF THE YALLEY CROWNS. 
Headquarters at Dersingham. 
Always worth a visit of inspection. Kindly send for Catalogue, 
JAMES CYPHER, 
Exotic nurseries, CHELTENHAM. 
For prices &c., apply to — 
T. JANNOCH, 
Lily Nursery, Dersingham, King's Lynn, Norfolk. 
FINEST MEDAL COLLECTION 
IN THE WORLD. & 
Send for CATALOGUE to 
JOHN PEED & SONS, West Norwood, London 
The Royal Nurseries, Maidstone, Kent. 
GEORGE BUNYARD & CO., 
Are now booking orders for early delivery of the very best 
NEW AND OLD STRAWBERRIES. 
For crop i8gg, or for forcing. 
They offer the largest stock and the best plants in the trade. 
Change of stock pays. 
Catalogue of Strawberries and Summer Fruits now ready. 
POCKET KNIVES FROM MAKER 
■ 
Stag Handle Pruning Knives, a real goon 
article, is. id. each ; Ivory Handle Budding 
Knives, no better made, is. 3d. each ; Ivory 
Handle. 2 blade waistcoat pocket Knife, is. id. 
each; Corn Knives, is.; Workman’s Stag 
Handle Sheepsfoot and Pen Blade, is. id. The 
blades of all the above are made from the very 
best English crucible cast steel. Post free. 
J. & H. R. HOUNAM, 
Sheaf Island Works, SHEFFIELD. 
N 
2 
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(Over 150 Pages. Nearly 150 Illustrations.) 
of Florists’ Flowers and Hardy Border Plants 
is got up regardless of trouble or expense, with the result that 
it is by unanimous consent pronounced the most comprehen¬ 
sive, most accurate, most reliable, most complete and beet 
extant. 
It gives full and accurate descriptions of everything in the 
way of Florists' Flowers, also colour, height, time of 
flowering, and price of all the best Hardy Border Plants, 
together with their English or Common Names, and a mass of 
other Valuable Information that cannot be had else- 
where. 
It Is In fact a veritable reference-book, invaluable to all 
growers of these plants, and should be in the bands of all 
Intending purchasers. Free on application. 
JOHN FORBES, 
Nurseryman, Hawick, Scotland. 
ESTABLISHED 1870. 
IMPORTANT TO GARDENERS. 
If you have Dot received our Illustrated 
Supplement with particulars of Important 
Horticultural Improvements and ftints by 
Specialists upon successful 
CARNATION CULTURE 
LAXTON’S STRAWBERRIES. 
If you wLh for the best, write for our new 
Illustrated Catalogue with descriptions of Laxton’s 
new Fillbasket, Mentmore, Monarch, Leader and 
Royal Sovereign. The largest cultures specially for 
runner plants. 
LAXTON BROTHERS, BEDFORD. 
FINEST COLLECTION 
1 
Satisfaction guaranteed. JOHN PEED AND SONS, 
West Norwood, London. 
in the World. We make 
a speciality of CALA- 
DIUMS. Gold Medals 
Manchester & Leicester. 
Silver Cup, R.H.S., &c. 
B ARR & SONS have on their Register 
several competent HEAD-GARDENERS. They will 
be pleased to furnish full particulars on application.—n and 13 
King Street, Covent Garden, London, \V.C. 
O RCHIDS of the highest quality, every 
plant guaranteed true to name, from 2/6 each. Please 
send for free list.—P. McARTHUR, The London Nurseries, 
4, Malda Vale. London W. 
Edited by J. FRASER, F.L.S. 
SATURDAY , JULY 2nd , 1898. 
NEXT WEEK'S ENGAGEMENTS. 
Tuesday, July 5th.—Hereford Rose Show. 
Wednesday, July 6th.—Newton-Stewart Show. 
County Borough of Hanley Floral Fete (two days). 
Tunbridge Wells Rose Show. 
Thursday, July 7th.—Woodbridge Rose Show. 
Saturday, July gth.—Manchester Rose Show. 
Wood Green and District Show. 
National Amateur Gardener's Association’s Garden Party 
and Exhibition at Regent’s Park. 
S Plague of Green Fly.— The conditions 
of the past few months as to climatic 
influence and otherwise would seem to have 
please send post card for same. 
been very favourable to the propagation 
and distribution of one of the most universal 
fjm~ MOST VALUABLE INFORMATION! 
Wm. WOOD 4 SOB, Ltd., WOOD CREEK, LOUDON. 
GARDEN SUNDRIES. 
SPECIALLY SELECTED ORCHID PEAT 
Black and Brown Peat 
Sliver Sand and Loam 
Cocoa Nut Fibre Refuse 
Leaf and Peat Mould 
Specially prepared Mould 
Sphagnum Moss 
Guano and Dissolved Bones 
Bones, J Inch and 1 Inch 
Bone Dust, guaranteed pure 
Blood and Bone Manure, 
highly recommended 
Horticultural Charcoal [Paper 
Tobacco Cloth, far superior to 
Mushroom Spawn 
Russia and Archangel Mats 
Pot Washing Brushes 
Virgin Cork and Raffia [Twine 
Tanned Netting & Tarred 
Trug Garden Baskets 
Flower Sticks, from 1 to 5 feet 
Wooden Labels, from 4 to I2in 
Thin Bamboo Canes 
Rose and Dahlia Stakes, about 
5 feet 
Orchid Baskets and Teak Rods 
Greenhouse Blinds made to 
order 
Patent Bass Brooms 
Smyth’s Orchid and Hothouse 
Shading 
Writefor Price List, free by post. 
AAR 
Horticultural Sundriesman, 
(By Special Appointment to Her Majesty), 
Clark’s Mews, High Street, BLOOMSBURY, S.W. 
pests in British gardens, that is, if green 
fly can be spoken of in the singular. The 
gardener is generally content to utilise the 
term in this sense, yet there are over 180 
species, natives to these islands. Some of 
the species may partly or completely con¬ 
fine their energies or depredations to one 
species,of plant ; but more often they extend 
their ravages to any or all of the species of 
a genus. Instances of this are the Rose 
Aphis (Siphonophora Rosae) and the Pea 
Aphis (S. Pisi). The latter attacks not 
merely the garden Pea, but various species 
of Lathyrus, possibly any of them. If the 
entomologist is right the Rose Aphis is so 
far adaptable to circumstances as to give 
rise to varieties differing in colour, but one 
named S. Rosae glauca has a special weak¬ 
ness for Carnations, and on occasion extends 
its depredations to other species of Dian- 
thus, particularly Sweet Williams, while yet 
the flowers are in the early bud stages. On 
the other hand some of the aphides can live 
and thrive on a great variety of plants be¬ 
longing to different genera and families. 
Perhaps no green fly is a more universal 
feeder than Rophalosiphon Dianthi, so 
named from its being found originally pro¬ 
bably on some Dianthus; but it is now 
known to attack plants so widely separated 
as Fuchsias, Peaches, Pansies, Verbenas, 
Potatos, and a host of other garden plants. 
The gardener is chiefly concerned as to 
the easiest method of getting rid of his 
troublesome enemy. Our observation leads 
us to believe that the shelter a garden affords 
is particularly conducive to the welfare of 
aphides and various other insect and 
fungoid pests. The more completely a 
garden is hedged round with walls, trees, 
and houses the more plentiful the insect 
enemies of plants become. This even 
extends to the shelter the plants themselves 
afford. The Apple, Plum, and some of the 
Peach aphides have the power of curling up 
the leaves, thereby sheltering and hiding 
themselves. Others take advantage of the 
half-unfolded leaves of the buds, thus doing 
incalculable damage to the flowers and 
foliage at a time when they are most vulner¬ 
able. Any remedies that can be taken are 
most effective and result in the greatest ad¬ 
vantage to the plants, if taken in the earliest 
stages when the insect colonies are yet 
small and have not had time to do damage. 
What can one do, however, in the case of 
Lettuce whose leaves are just closing in 
and covering up myriads of the filthy red 
Lettuce Fly ? At the present time and for 
weeks past nothing has been giving more 
trouble, perhaps, in gardens generally than 
the Rose aphides, but particularly the 
species above mentioned. The bushes may 
be syringed weekly, daily, or oftener, with 
clean water and foul,but all the same the pest 
is present in force a few hours later. It is a 
hardy insect and survives a deal of bad usage 
with applications of quassia water, tobacco 
water, soap suds, and Gishurst Compound. 
No doubt many of the insects get destroyed, 
but others crawl to the sheltered side of the 
stems and leaves, resuming their nefarious 
work when the storm is past. Those which 
get knocked to the ground crawl or fly up 
again; hence their sudden reappearance. 
It must not be forgotten, however, that 
winged specimens may and do come from 
other quarters, where the increase of their 
own numbers and the neglect of the owners 
of Roses, obliges the aphides to seek for 
fresh pastures. Amongst all the remedies 
used tobacco powder seems as effectual as 
any. Where much ground has to be 
covered, the application of the remedy is a 
tedious process; but if worth doing it is 
worth doing well. The object is to reach 
the insects in their sheltered positions, which 
alone will start them out. The bushes, if 
dry, should first be lightly syringed all over 
so as to make the tobacco powder cling to 
the leaves. Then the operator may proceed 
to work, dusting the powder well into the 
opening buds, the flower trusses, the axils 
of the younger leaves, and wherever the 
enemy may be sheltering. In a short time 
the insects may be seen in hundreds at the 
tips and edges of the leaves, and all trying 
to escape to some safer retreat. Some of 
them ultimately sicken and fall of, particu¬ 
larly if powder is adhering to them. Some 
that are ready to pupate acquire wings and 
fly away, but all disappear in one way or 
another. After this period the leaves get 
firmer, and the pest is never so potent for 
mischief in the later half of the season. 
Whe oldest tree in Europe. —There are 
many isolated instances of trees that 
are reckoned to be of great age if not the 
oldest existing in the country ; but when they 
happen to be hollow as is often the case 
how is their age to be reckoned with any 
degree of exactness ? In any case the Yew 
and the Oak, particularly the former, hold 
a high position in the claim to longevity. 
The Dundee Advertiser gives a lengthy and 
interesting account of the Fortingall Yew, 
in Perthshire. With the particulars at his 
