THE GARDENERS’ CHRONICLE. 
[May 16, a k 
344 
af which so m uch was once heard, a 5 likely . prevent winged state ‘throughout: the year, and rarely for more celles de = et de sapins, elles fo 
the cultivation of Wheat altogether w ahiri it unds, is | than eight weeks. We may therefore easily ascertain the d’années n grande quantité d'arbr 
equally a poia of Cecidomyia, thoug tally distinct | proper time for cutting down those — which are so hors Tétat être employ i 
in habit. Like the species of Chlorops which are so de- | much infected with larvee as to affor hope of saving Ona review of the 
structive to young plan f Barley, (see ue for it would obviously be rig ight of im st plac e, ee 
Gardeners’ Chronicle, 1 , 796), it enters into | dence not to seize on only ra nity of preventing ` trees in the stat 
the stem, and revents altogether the formation | the annual dispersion of the ase, by destroying the twice every year, in 
of the ear. this unately no rem brood of larvze while cab in the | sect is on the wing; and Papere. inw 
seems to have d, the Wheat As soon as metamorphosis ha takin place, as soon as ` trees which are muc infected ought to 
is often kept oem tolerable bounds by a host of insects | = icy ane insect has made its serene mischief — sg ought if 
which deposit their eggs in t ung larvee, r the ing year is done. Not only is time thus lost, in them, or if this 
when hatched live like true parasites at their expense, poy et cation miia destroyed, aA e future dia ately ‘ subjected to suc 
and at length aet me o the state, insomuch that mation of the disease is rendered Pst more , destroy the larve, parina tthi 
se seemed to b iffic ~ 
he pupa of the a yields 
oon Poth to destined to oi ie e lagu e 
which a otherwise be intolorable * M. 
OOTACAMUND. 
Diary of the Weather and Sonnan pd the Air, as noted by the 
We also derive another advantage from eee: | 
age the habits of that particular insect: which causes | 
the disease, and the eee E of its ap ge ~~ “it is 
often thus poan by timely measures, n places 
where the perfect insect is prevalent, W aii any 
| t so diffic ult to kill, 
having cut dowr wi the trees without d 
or even 
the sound wood 
ometer, in the north verandah o; it i 5 
house nenrty 8 a above the level of the sea, at Ootacamund, on se of Ma i ae hi peaa s i _— mre z ~ maaan p * opi z wie | 
Neugherries, showing t e maximum — Bees. — of the d. At all ev ss x these | is peculi = the E and an i 
S perature, peat is eat, that it is clearly worth | duced in aP with some of the » Ta 
5 : while to make experiments to race" ao although it is | which have lately been aye in ha i 
g E g 3 naan to concei — ents can ever the other species of trees in these play d 
Bui i 3 ade philosophically by perso Shi 10 mn not in the first | public resort wg a on the whole, to be Very free fm 
Date. K Sle” & Hibcins beistapiee make themselves paene ei with the natural | disease ; but in ng, and particularly in ornamesti 
= gs g history of that particular species of destructive insect planting, it may be w ar in mind that indigenes 
Š BE which may have occasioned the mischie are much more RCA to the re of ow in 
1857. Of the evil which is mentioned above in general terms, | digenous insects than those which are nok naihi 
Jan. 1f 56° | 45° ace ain in morning, fine during the | St. James’s and eo ai me e us at present too — 
oa but ogre pone Wind from anes ost yam pa p a a p as and par — ` te, p parag o e gia which are in 
ames’s Par anid aring, and | state, it is ver 
x 2. 56 43 ae Be ie but hoary clouds in South and mits deciive. tidaswres mp re esi to eat the t ai attack the branches, 
» 3| 564| 43 | Ditto, "but a litle misty rain in after- | progress of the contagion, we aeien vio sly to be ——— and, if 
noon—wind from every tree of this species to be destroyed in the Parks, | as possible opped off and b 
ie t s $8, (“Dn aae ar phroughout—wvind from N. E. | but heb Se have pedi sonra e dissemination of the evil | however, what to propose for the preservation of the 
ai gak Hi A I ana A. hi evening, | throughout ihe * vicinity ly London. trees of which the trunk i 
a $ sn a nem, wind from N. oa and E. ms AE Seong s Park, which jore particular y. m be of use sa p yan the month of 
» ' o, £ jec y examination, t ger are several species of | mix ani 
i o 36h 20 Ditto Sind still strong from es cade. te be found attacking the Elms. That species, a ground all AE ypas it may be t 
ol a | aa Dian ate tm manm |r ts aata ie aia Mal an Bogs Whe te [fat cl by evo aaa A 
» 10) 5 rier 40 Inset inv Mati ir alk, is the | of tar, not o way.of epa 
» Li | 53 41 a forenoon but ‘cloudy i in Ainiin, Hylesinus destructor of Fabricius, or pane pve ase ie trunks from he pake Athy ect i 
» 12} 56 41 ditto, from eastward. of sagan an insect of which the history is briefly as filling orp little round holes vkidh tis 
ge E 6S 40 JA fing: p throughout, wind moderate n asy in o 
beetle, with its head rather uraa with panes peculiar facilities for the communi 
= 5 E Ditto, wind still still Ae 5. E. n having a meys ed black thorax, and brown wing- ase. W. S. Macleay, in the Edinb. Phil. 
» 16; 564 | 42 |Fine in forenoon but ele cloudy in afternoon, | cases, may be in num running over shee trunks Cee 
Haly ane me wind from a the El the end of March to the first days fake 
* wel ga" | 308 | Ditto ditto, wi July, but pija. about ne end of May or com- s QGorrerpon mE mag 
» 1ọ| 53 | 38 [Fine greater part of ike dag but cloudy | mencement of Jun y then be seen entering into} Gra Uoutane (see p. —The í 
2 X Pas te evening, kong still from N.E. | holes, with which the park oe perforated as though | directions are > be found in Tortai Journey to tie 
m a a E oe rongini, but a s "strong | w ith a gimlet. It itself into these holes, or | Tea C age 323 
„ ü| 54 |736} | Ditto ditto: into e crevices of ‘the | wale for the p of -| of es ~ r large quantities of the of an 
» 22| 54 | 85 | Ditto, wind moderate from eastward. | ing its eggs. stripping off a piece of the loose bar nie se " s pas- and other ou 
” Lai ed s Ditto, wind from N.E. we may easily at any un how the bark- | an ey ae vintendell stocks for the M 
> 25| 68 | 95 | Ditto, strong wind from NI. ing of trees is effected by these “penn krana for the The bundle of “ers » which forms the ma 
s 26) 5731 84 | Ditto ditto surface of the wood thus exposed p o the view | pieces, and eac 
» 27| 57 | 42 Fino Aone rma oa but cloudy in afternoon, | innumerable impressions, which pate es compared. to | upon which fhe] Monies} is 
ail “ea fda ties te percents Sos e Som eet shower | /™Pressions or casts of large and broad scolopendre. thro en 
wa Stites as wind foen® e or body of this si impression marks | potting bench, the scions pri es 
C» 2) 65 | 48 [Misty the day ainda heavy fall of f | the path of the perfect female insect, while employed in | plants which it is 
= ue * acs ie ht, wind from S. l ran ich is to her,as - most other wi is not more than 1 
„ w gl 44 with som some Wiis eel i th. From this | and the poin 
denso fox with a path, ever, in which she deposits her bygone pot 
» 31) 64 A fine day throughout but wind from 8. = larvae, which are h maa ge gratin - the |a wedge, and ins 
of little white a roceed nearly at|tuber. This is tied up or ¢ 
el} FS aie D Mean of day a and night during the right angles, — their ir way in in, paral snattee 4 hes, usual way, and the operation 
mth, 49° which, lying clo = ps. is e toja large ber of p 
ian dae the mouth 11a aa separate the re pate coe The tonal manner they are taken to the nursery, 
on oe ae r thras feeding in the tree, generally beeen the rents and the | plant in rows 
wood, throu pra ut the winter season. About the com- | same dis the 
W - | mencement of s the or nymph | or point of the scion is 
ESTRUCTION OF ELMS. state, fore the end of this aeol Sanaa on ae ae ground; the point between the 
infec as if all its crevices were where the on is 
full of a very fine sawdust. The last change of the | always buried 
ect takes place; and bei winged, it tries to| that the Chinese propagate th 
arrive at the external air, of i | this must be a mistake, as 
its species, and laying its eggs in other trees. Eac ti the country, and 
hole which appears made with a gimlet, | was probably deceived by 
marks the exit of a perfect insect. In the first which is employed and 
the voracity of the larvæ, and, in the second, the endea- bud at its a y 
vours of the perfect i to liberate t ves in this , 
the wood, particularly when such attempts ar which one sees in the rows attest 
a infinite numbers, soon occasion the bark to fall | attends the d it 
in large pi The consequence is that the new leaves w. In about a fortnight 
only ir appearance to wither, and the tree! root and the , 
The early entomologists, little uainted with meta- They frequently bloom the first sprmg, 
on finding the perfect Hylesinus destructor | than the second, y are 
(le Scolyte of Geoffroy), on dead or dying trees, erro- | the markets for sale.’ 
L : e cause, and not | Siu, 's.— Among the 
to be the effect of the insect’s aj ce. Hence the Ba destroying 
| habitat of this species in many of the older s mae age e 
gical works is said to be rotten wood. The a ity of | at o a 
this notion will however be obvious on the slightest in- plained of pa R.” i think until 
vestigation of the evil in its earlier stages, It oa such a mass 
instance, ed on ds that the -~ perishes > 
being barked; and the mere inspection f any of a Kwao. it would be useless 
trees so barked will sufficiently show that 2e mischief | the that has been recom 
is effected in the manner stated. In order to | but temporary or must 
coda prove that experienced r naturalists Era now pepe of the era ona en ar i 
e cause of such the di x ; 
| for me to cite, from ` the third ne ge fd “Cavi ate subject some time past, 
| prefatory remarks of M. Latreille | in the reasons why I 
PA aa rreran So raram lrag oe tar 0er: eo Pe iend who is 
[sinus destructor t} : “Les Xylophages vivent | practical farmer, as his fields, CrO 
presque tous dans le bois; les larves percent ou y his garden to sos he sione s ' 
creusent des sillons en divers sens ; ene la ei 1 to see e if he shone there 
