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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 jjlanted. The following year I noticed branches 

 broken near the top of some old trees quite out of reach of the boys. 

 I had some cut off, and after careful examination I found it to be the 

 work of an insect; what, I did not know. The larviie I i^rocured 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 1S<S9 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 1891 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 larvae 

 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, into the 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 

 fluffy covering. They could be very easily destroyed 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 i)arks 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 tires 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 aiul 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 ])est that 

 I have i)ersonaIly 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 



