852 THE GARDENERS’ CHRONICLE. [DECEMBER 27, 1856. 
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influence of a f a slight depression of the ien | which seem to represent the eyes, antennæ, an NEW PEARS. 
and iar are seen much more clearly in parie Ture is a fascination in new Pears al Imost equal 
to affect the outer surface, while the inner substance eister’s figures of the young of Aleyrodes zik in new Roses and new plants; but this i as Sts ‘ald 
go with moistue and less expanded gas Chelidonit, : n England to anything like the ent it is on the Con. 
se lel an 
rge j 
at once as a powerful mechanical agent “ ree ou although elgium. “Whether d 
the a ing surface water as it was en A. pré donii, differs from it in » ite pri size, in | not the theory of ‘Van eet is 5 correct, itis undoubtedly 
into ice, and supplied the con dagaa n cy. having only 6-jointed antennæ, in the want of the | to his — of seedling Pears we owe vi 
ery many 
to an ds were ee a cig n the depressed | dusky” spot” on each wing, in the m more suddenly angled excellen t varieties, and some of those lately wae out are 
Sf: the iielidedne dco more rib in the middle of the fore. wings, and especially their i e way they manage 
tetany mute were in priprta and towards | the long straight rigid eer toe Reins yA wor of i Belgium pig sending forth to the world the new 
hich several ducts radiated. In this case | the : = he Van Mous’ collection, and also those 
bo ate alle de ducts concealed for - several d a ays o naffecte: ed by external ie other kinds of fruit) raised by M. Gregoire and 
tissues, 9 ly agents (exce t heat and co’ t 
ith moisture, and the state of their bar: was pern plains { Ai the sudden reappearance of t a nore a rd eea ae E cre anthers: 
from incipient decomposition as to present little insects so soon after fumigation. In consequence of its| Some few years : ago the whole collection of seedling 
im ent to e passage o the contained flui being only hitherto know in greenhouses it may be | Pears raised by the late Van Mons was purchased by 
h phenomena do not require a very low neon specifically named ‘Alejeoden supabiadeaic: Mon nsieur r Bivort, autho: or of « Alb bum de Pomol ologie,” 
, the effect of which would be so rapid that} The history of the common species, A Chelidonii t St. Remy, 
time would not be given for the formation of the | formed the subject of one of Réaumur’: arkable cae in Belgium. I sawt ‘them there two or pore 
threads or the continued supply of fresh fluid. It memoirs (Vol. ii., Mem. 7), and his ected fa ellos years after their transplantation, and well remember 
seems curious, ho , that the matter is not of | us, with s everal ‘particulars worthy Si bes tention with | the surprise I felt on erp such large and tall pyra- 
more frequent occurrence ; at least, in the course of | ** a possible s of getting | mids, many of them 12 and 15 feet in height, and 
more than 30 years’ observance we have never met rid of this new ` pest, which doabitlees p ossei habits | upw wards of =p years ol id, aada so well after being 
ar cane before.’ Mf, Jv B qui eed similar to those of Réaumur’s insect. It might | removed many miles, and planted in a soil not very 
Se ae Se b supposed that as the nr was attached to a native Pieter ep to their well doing. A few years since 
——————— is aan l , its ers of propagation would | M. Bivort discontinued his business of nurseryman, 
— ENTOMO | be much less continuous ay ‘ie of the species now | and originated a society for the distribution of his new 
beire us, Sr ~ being eee coe a in gor es in eter an | Pears, under the title of the “Société Van Mons,” and 
NEW ALEYRODES OF THE GREENHOUSE. uniform temperature is kep ould t pro- | under the patronage of the King of the Belgians. The 
During the past 12 months the greenhouses both in | bab th members of the’society pay an annual subscription, and 
. the public gardens at Kew and in the gardens of the This s is eed the more amigi because , viide entitled to receive grafts only of Pears, Plums 
orti ty at Chiswick, have been infested expressly t ‘el us that he had observed A. Chelidonii in Cherries, ar i Apples, and plants of Strawberries s 
with a new pest, under the appearance of a very minute | the mo of December and January after sharp | Raspber . The society at present, judging | from 
white four- four- winged i insect, like a min pats moth, to | fros ty See en été,” i in all its stage s of e s, young aidions] ‘iol 
which m, y Sir William | j hed, full grown larvee. t he of fruit, "The number of subscribers now 
Hooker, and m e A by Di Dr. nae. It especially | plants are in toned as thickly infested with the in jor part of which are 2 rent 
the leaves of bs “ws me | a their Amd ni “e present time (December uth) as s Belgium. France comes next in the number of mem: 
Tecoma velutina, crag Aphe elandree hey w nths ago, notwithstanding repeated bers, A few Bohemians, Hh aie ians, Americans, and 
and other similar soft-leaved ar and is srr to fu anyigatio pis: ast and least) one Ras: haart fill up the catalogue; 
emi eag r. s S| After deseribing the structure of the prag insect, $ li at of the subscribers is published annua lly 
re mode of sucking the leaves of plants instead of the m rs who feet join ined the = dinni called the 
è Her ereit re rani — | dipping pii honey o of flowers, its four oye, and its founders, and have the privilege by rotation of naming 
the tip of its erip ked sucker or ro ings—in all of iff Van Mons’ collection after they 
the leaf, but on passing the and over ta 1e aie a yates N Gotan caine PE A B 1 ] I l t Eo i society and thought worthy of 
little white cloud of the insects is raiped, Tisy Se naturalist, la viene ah 
however, site 3 wad by to renew w th eir at acks, which a ‘te mape in the pate part of the press year after 
shortly follo discol bl % iz Me da 
subsequent Eoia and falling of the shit "The Adelaide de Réves, Seraphine Ovyn, (so name ser 
o fumigation s have e been tried, and the pee Ovyn of Courtrai), and Napoléon Savinier ; these 
ate d s east all deserit bed as ? the first tw 
killed, ee n a day à q f the perfect ripening in October, the latter from pos to March, 
PP ? The greater part, however, of the new Pear grafts 
sent out were from seedlings of M. Grés re, who, i we 
tions. Noris the Bang ot the wets out in the o open air y judge from descriptions attached to ancl is 
- more successful in getting rid of the enemy, likely to rival or even surpass late Van Mons or , 
_ Gordon pointed out to we a cluster of plants which had E in the excellence of his seedling Pears. 
been in the open air for more thau a fortnight, and eir name season of ripenivg are as ayer = 
which were swarming with the insects as thickly I add they y are all first-rate in quality, as deci 
those within doors. I sts +— Colmar Delahant 
The insect when seated with its four wings closed J fanuary and February ; piers Delmotte, end 
its back i January; Dr. Lentice, | October ; Hélène Grégoire, 
_ pin, and were it not for its beautiful clear white colour it | October ; Iris Grégoire, 
` would be seen with diffi $ ical examina- | Grégoire, January and February; Nouvelle ” Fulvie 
tion proves it to belong to the genus Aleyrodes (one of | January and Febru sag: Rousselet Vanderweeken, 
Eers goed groups allied to Aphis and Coccus) of Jecember and Jan Dr. Nelis, November and 
“oon in this country i December. With me e A of two latter, the 
ba Chelid Chelid ú ruit of which is small, the second of medium size, 
on the common Cabbage ; 3 another first paname amn | oe a yee class by i itself—he informs us that rst size, and consequently 
by by Ale Haliday in ests the common Phillyrea the d kely to add some valonte varieties to. our list of late 
The is om and y, the head distinct, | side of a leaf, where she remained several days. By} Pears. It must, ho , be some ee years 
with a pair of antenne consisting of only six jéints. | the orth a had formed a small circular Kirai iey can be fully cant in our clim I find from 
the large, the second long, and the four following | aroun body ahat a line in diameter, entirely ing experience that varieties of Pen ars which are 
short and slender ; the eyes are four in umber, each | ¢ overed with the white powder with which her whole | invariably good in Belgium and France sustain their 
bei: ll and d d near | body l llil pass western, and south- 
each other; the rostrum short, hee aiy two- | space were arra nge ed nine small e eggs o of } ted t parts of England, “put that a variety that 
jointed, eating from its apex a fine po inted (certainly oval form, fixed upright. ene number of in the above countries is 
compound) black seta, which is pst ae instrument by | R of tl dio oip never E A sarees wry of cultivation in Bed: country, There 
which the plait ens wounded. ‘The whole body, legs, 14. The number is, however, som — more tren uable Pears not ne nae collector, but 
a y Réaum _ Thi s the more im- | new aad a cee portion of your ga s are quite 
secretion, analogous to o the white floccose matter of the | p female | worthy of mention, as they have been fully tested in 
Apple-blight Aphi f Em wing to em rapidity of | our climate. I have been particularly pleased tiris 
various species of Coccus are enveloped, and which is | the kirasan pe ee become the proge enitor of season mace Alexandre Lambré from the Van Mons’ 
oe in many other Homopterous insects ; the 200) 000 individuals was based on the is ripened towards the end of November 
. wings are of moderate size, rounded at the tips, with a | ea female de epos osited only 12 eggs, wlterens I a the fruit ethene fr from a pyramid on the Quince ; im 
single central strong rib ; than 36 in a single group. By tl mbles a Passe Colmar ; indeed it 
over the back roof-wise, and the legs are rather short of July none of the eggs renikened Visible iit thel is of that race (for there are races of Pears). The e 
So ant ace wher e th ey had been deposited, but ut about a grows freely on “0 ve Quines, i is remarkably or standard- 
_ On examining some of the infested leaves I found Gorter white d a n pyramid, or stan f th E 
them covered nar numbers of fiat bodies of ex- observed a number of minute oval flattened bodies like 4 I thought this one “a 
_ tremely delicate ture, fringed with long, eae a most _ delicious rae I ever ate, its aroma he’ 
4 ercon n ein oa deal of | the kee deli soa it has not hopen sustained its hig od 
parent z of the back. The hey remained here oes ed i ripen n Dece r, and as so many 7 
aoe I f the pl } for four r five days, slightly í increasing in size, their Poss iya in pper month itis not wortby of a us 
“250 ee aroun They are of an i cultivation. Not so however with Prince Albert oot Fi 
oval flattened form, a — very thin; the į extracted by means Si Uret tostran. On the 15th | śe., from the collection of the late Van Mons), w! ae 
fore half of the body is is occupied by two portions, w. which It they ge of form, becoming more | likely to prove one of the most valuable h al 
shut elose by a ee aia nena the middle of the with ne end of the body pointed. _ On the we have had cere for a long time ; the Pear 0 
but are generally ess opene d like 20t July iney reassumeđd their pre evious isê-li and | ria ant eati: either on k It 
Eomania ; htl Q o know how to canker. 
eyrodes, which ł lready mad On the 24th Tule the fis not so precocious in bearing on the bey 
p te, but with tl ixed | perfect insects geet thus occupying less than a j som son ner kinds. My specimen tree, paata = full 
Sis : Te much destitut transformations. mikes stock and now some five or SIX pearse a ood 
: ~ the ai very transparent, of a very fiat oval | The woodcu t re presents t the perfect insect magnified, | of blossom buds, so that it will doubtless oi oan a 
_ figure, the middle and hinder half of the body exhibit- the natural size indicated within | a small oval ; one of | bearer when of a tolerably age few Pests 
ominal with "the stock is most highly favourable to it, but owch like 
er | side of a leaf, with the young insects anà pa cases of | ee with equal vigour on it. It is in shay bape” juicy 
the natural size; a pupa cas Beurré Rance, not qa so large, is pie vey 
jor | fate, she ait savour of Passe Colmar, kee? 
l Me aAa F o. E E a ‘Match and ‘alt probably in some eee 
