The daily morning journal and courier. [volume] (New Haven, Conn.) 1894-1907, 1895-07-23
DEATH TO THE BEETLES
THE work OF DIFFERENTIATION
BEING CARRIED ON.

( -Government Entomologist In Connecti-
cut In the Interest of Saving the Eims.
The work Of exterminating the elm
leaf beetle was continued yesterday and
At Is now certain that the effect of the
emulsion recommended by Professor
Jenkins of the Connecticut experiment
station will be most beneficial. The
worms cam be seen coming out from
beneath the bark and almost imrnedi-
ately afterwards fall to the ground. The
city employees have nearly completed
the central green and Wooster square,
and they will to-day probably begin
work on various streets ,'
Commissioners Johnson, Bishop and
McGann of the board of public works,
who are the committee who have the
slaughter of the elm leaf beetles in
charge, held "a meeting yesterday morn
ing and discussed the campaign. 1t
was reported that the work on the parks
had been well performed last Saturday
and would be finished yesterday. To-
day the trees in the principal streets of
the city will be treated as far as pos
sible.
Many OF our citizens will be glad to
know that they can obtain the efficient
services of Mr.. Burton II. Dorman of %
Dorman street to save their elm trees.
Mr.. Dornan is a we'll known landscape
gardener and grade contractor, and we'll
understands the care of fruit, shade and
ornamental trees. Mr. Dorman will
thoroughly attend to all orders sent
him, using the recognized effective
methods and remedies.
1t Is pleasant to see that numbers of
elm trees on Whitney avenue have al
ready received treatment. The same is
the case with numbers of elm trees ON
other avenues and streets of the city,
also on Elm street, West Haven.
In Bulletin No. 121 issued by the Con-
necticut Experiment Station, 1t says:
THE ELM-LEAF BEETLE (GALER-
UCA xANTHoMELOENA)
Numerous inquiries have reached us
lately regarding this insect, which is
proving destructive to elm trees in
many parts of the state. The beetle
deposits its eggs In small clusters on
the lower side of the young leaves early
in June, the larvae hatch out in about
a week and at once begin feeding upon
the leaves. These larvae are small
worms about five-eighths of an inch
long, marked ON each side with O. broad
blackish stripe. They are soft, moist,
and somewhat hairy to the touch. 1t
is at this stage that the insect is most
destructive, eating off the delicate sur
face-ttssue of the leaves, and causing
the latter to become shrivelled and
brown, and eventually to fall from the
tree BY the end of June or early in
July the worms become full grown.
They then crawl down or fall from the
trees and In crevices Of the bark or
soil or under grass and leaves change
to soft, yellowish pupae. Ten days
later the pupae give rise to the adult
Insects, small yellowish beetles, about
one-qlarter of an inch In length mark
ed on the back with two black stripes.
The beetles ascend the tree and for
month feed upon the remaining leaves,
though the injury done by them is much
less than that due to the worms. Dur
ing August and the early part of Sep
TENDER the beetles enter cracks or crew
ices, where they secure protection dur
ing the winter and hibernate until late
In May, when they appear upon the
young leaves to deposit their eggs. It
seems probable that in New England
there is but one brood during the sea-
son.
Methods Of determination This in
sect can best be destroyed in the larval
and pupal conditions. The larvae
{worms) are found in June and July
upont the leaves, the pupae in July upon
the trunks of trees and on, or in, the
ground beneath the trees, To destroy
the worms the best means is spray
xxyith ri
fresh Stacked lime, in the proportions
Of one pound of Paris green and three
pounds of lime to one hundred and fifty
gallons Of water The lime should be
newly Stacked and strained free from
grit or Jumps.
GOVERNMENT ENTOMOLOGIsT IN
CONNECTICUT.
Bridgeport, July 22.-Prof. Z. o. How
ard. the entomologist Of the department
Of agriculture of Washington, D. G.,
was in town yesterday, the guest of w.
S.. Billiard. Prof Howard is at present
making a tour of the New England
states, collecting information In regard
to the elm tree beetle, which is de-
stroying so many of the beautiful elms
which are the pride of New England.
While in the city Mr.. Howard visited
DR.. T. DeVere Warner at his residence
on Park place DR.. Warner has prob
ably spent more money in the exter-
mination of these pests than any one
else in Bridgeport. Prof. Howard in
formed him of the best way of de-
creasing the number of these insects.
AS he is in the employ Of the United
States government he has nothing to
make from his advice, and as he, if any
one knows what he is talking about, it
may be well to heed what he says.
Mr.. Howard claims that early in the
spring, when the buds first begin to
appear on the trees, they should be
sprayed three or four times a week
with preparation of arsenic, made of
arsenic of lead and glucose. The beetle,
when it flies into the tree, early in the
spring, deposits its eggs on the leaves
and then dies. The grub, Matching
from the eggs, eats the leaves and with
them the arsenic, causing death. In
this way alone millions of the pests
can be killed in a single spring.
But there is way to kill many of
the worms at the present time, if it IS
done atSonce. All during the summer