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my house were somewhat injured, as I then supposed, by boys, who in 
their mischief had broken numerous branches, particularly on some 
young trees not long planted. The following year I noticed branches 
broken near the top of some old trees quite out of reach of the boys. 
IT had some cut off, and after careful examination I found it to be the 
work of an insect; what, I did not know. The larve I procured failed 
to mature, so that I was still in the dark as to the moth. 
On looking over a work on entomology, I found it must be the Zeuzera 
pyrina or Leopard Moth therein described. In 1889 I found it had 
affected nearly all the trees, mostly Maples, from Carlton Avenue to the 
entrance of the park. In 1890 it had spread to many trees in Prospect 
Park and also on the Eastern Boulevard. It showed its ravages the 
whole length of this fine roadway, which is shaded by Elms and many 
varieties of Maples. In 1591 it had begun its ravages all over the city 
of Brooklyn, not an avenue or street but had abundant proof of its 
presence, and I have proof that it has already spread to Astoria, New 
Rochelle, Jamaica, New Lots, and Flatbush. 
This Leopard Moth is quite a large one, and from its peculiar mark- 
ings is easily recognized, being white with black markings; the larve 
are also white with black dottings, brown head and posterior seg- 
ments. The eggs are deposited in or near the crotch of a tree, and not 
long after they are hatched they enter the crotch (but not always), bor- 
ing, either upwards or downwards, intothe heartof the tree. The hatch- 
ing takes place early in June and the young at this time cluster together 
for some hours before they separate and begin the battle of life each on 
its own account. 
This is the time when trees known to be affected should be carefully 
examined. The eggs are laid in a group and are covered with a loose 
flutty covering. They could be very easily destro¥ed at this time, and 
perhaps some of the insecticides recommended by the Department 
of Agriculture might be advantageously used. 
Electric lights should be placed in all public parks and in every 
street planted with trees. Numbers of moths are found in the bowls 
of the electric lights near the Plaza and elsewhere in the season, and 
hundreds are seen dead on the ground under the lamps. It would also 
be a good plan to build fires in the vicinity of trees that are affected in 
the month of May before the eggs are deposited, as the flames would 
attract the moths, and probably very many would be destroyed. 
Everyone who has shade trees and ornamental shrubs near his dwell- 
ing, or is interested in arboriculture and their protection, should use 
his influence in the coming spring to help in saving them. 
The following is a list of the trees affected by this terrible pest that 
I have personally observed in my studies of its ravages, and doubtless 
there are many more shrubs I have not inserted. Elms and Maples 
appear to be the favorite trees, for certainly there is hardly one of them 
in Brooklyn or its vicinity not affected by this insect. Unfortunately 
vee? lis 
DPN teen ta ea apanit 
