New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1860-07-04
CASKER WORMS.

CASKER WORMS.
To the Editor Of tn, n y Tribune
SIR: Your recent articles upon the cznker worn,
which seriously devastating the foliage Of the city stir
up lay before your readers the information which ysrs
of careful observation have enabled gain respecting tsis
pest neghborhood do this the because notice
suggestions In your issue Of to-day which look 10 tho
adoption Of remedies and before any remedy ssdh
sential that have thst viii be edeetu
student In New Haven the tine whom The nvsges q
the insect In that city and witnessed the exs
deseatop which produced The magnificent Gins
which the glory Of that beautiful city stood bare and ~iny
the end Of June, with every vesse OF their foliage utterly
consumed roced and have since repeatedly observed hov
perfect protection Is afforded by the metallic gdle which
describe Whether the plan Of Mr. Taylor spoken Of In ys
article, s an improvement, am not able to say.
The whole merit Of the plan, however consists IN ts adsp
ton habits OF the insect The femsewhich deposits -
eggs upon the body and branches Of the tree before the opening
Of the sprng wnges sperous, say In Entomolo1;
and being incapable Of flying eectosy arrested BY the bar
er which Is presented by open tube encclns the tres
The protection complete the application easy and the rem
dyis efectuA.
One fact however TO be taken into view which eectosy
alters the with familiar study Of New foh
insect for several years past convinced that 10 an enfss
OF different habits in rsspects and show
all different in the one particular which Owes all lie yae 10 tho
New Haven remedy; our species pOres'e' fully the power
flight Its therefore, the body and limbs Of the tres
for the purpose Of deposng s eggs be In tho st
arrested by any such your article proposes ADOPT
the method by which New Haven derived hers tho
thorough and careful study Of the habits Of species Of
insect
The very positive assurance Of your Mr. Webb
that Of that all the miers which produce ths
measuring worm have wings by which they Ay
"inch" in the main true though perhaps rather cesy
stated; applies only the canker Of New England
species may be flying sbundantiy both males and 70
males ascending the Of highest and reach
ing the large brsnches with sbsclue After having oS
served the whole process very carefully am In position 70
speak confidently about and beg to your readers that
arg attempt bind initiate the New Haven method Will only
prove mistaken and Improbable because ignorant attempt
order with certainty the truth upon this
point transmitted specimens Of NewYsrt miller isse
Summer Mr. T.. c. Herct, the accomplished Librarian H
Yale College, whose investigations of the New Haven essker
worm published length years ago In The ASon
Journal of and received from him the thst
my impression that the two species entirely distinct WIS
no doubt Mr. H. also concuned with In thinking
that the power Of fight by the Now York moth would
require entirely different methods for the prevention Of ~
ravsges
The method which my observation he's suggested enec-
tus consists in thoroughly scrapng the after the eggs q
the moth have been deposited IT, The with DOES
New Haven into the ground aud remain thsrs
till the Winter but goes through its changes IL very brief
period After coming down from the tree lays Itself In
formed OF few thin fbres Of SIX In the creves Of s
bark of the which requens upon posts and fences
the tree There the insect be found undergoing
Its change After about fortnight forth In the shsPs
of white moth somewhat less than inch long At that Pc
Rod parks and public squares alive With these merSj
the grass studded the paths covered the air ed with e
Any may easily satisfy himself Of their Of digit By
careful observation OF them The feele projecting
from the head the males esthered Internationally
eetinated; 6bres like the teeth Of comb has
each upon side the females have the sntema plain
straght and they may also be distinguished by the larger
size abdomen which l. dendedb eggs No dderesos
however In the power Of fight will be observed beweea s
two On coming from the the meet NJ
the egs laid upon the bark Of the sos
They be In patches varying from dozen to 6y
even more-minute green giobues which change to
dusky gray brown scarcely dtnguihabie In tint nom As
bark They adhere by guinou secretion very firmly to hs
tree and remain through the year till the warmth Of sneAr
Spring matches them into life
At any after the eggs laid In the beginning OF July
and before they Matched in the beginning Of the following
May careful scrspng the w<emove most hem al
so prevent their rsvsges for the next summer
Having frequent ocesons pass through Washington psfsds
ground have pointed out the upon the back TO the peo.s
inrused with the Of that spot and the trees have bee
sometimes scrped in the spring with very good resa This
year omitted and the deserted shells Of the las
year may be the trunks of the trees seriously In
jured by them this No other method than this Affords
security; but this If faithfully carried out under ssy
competent supervision be made entirely efectua The
eggs remain for nearly year before they hatched quite OBJ
yous and olersby accessible couple Of would In two
three days clean any Of parks this destroying sssse
for the summer and careful attention for few yosxs
throughout the city would nearly extersts the Pe Aps
gising for so long communication remain yours,
Nctc York. June DC, 1900 B. N H.