1908.] PUBLIC DOCUMENT — No. 33. 155 



The appearance of the leopard moth ( Zeuzera pyrina) in and 

 around Boston during the past year adds another important in- 

 sect to the list of pests with whicli Massachusetts must deal. 

 This insect has been quite abundant around New York City 

 for some years, but has not been reported from this State. As 

 a liorer in shade trees it is a serious pest, and its presence must 

 hereafter be taken into consideration by our city foresters and 

 tree wardens. 



The brown-tail moth has continued to spread over the State, 

 but in those localities where it has l^een longest present it 

 seems to be becoming less serious and more generally attacked 

 by disease. Whether this condition will be permanent or is 

 only temporary cannot be determined now, but its permanency 

 is greatly to be desired. 



The presence of the San Jose scale in the Housatonic valley 

 has been suspected for several years, simply because there 

 seemed to be no reason why it should not be present there. 

 Specimens of this scale from several localities in this region, 

 received during the past season, demonstrate its presence there, 

 leaving only the higher parts of the Berkshire hills and the 

 northwestern corner of the State as localities from which it has 

 not as yet been reported, and time will proljably add these 

 portions of the State to the list of infested regions. 



The marked decrease in abundance of root mao:gots and cut 

 worms this year should be noted, Avhile the spruce gall louse, 

 squash bug and several kinds of caterpillars, all common pests, 

 appear to have been unusually abundant ; but on the whole 

 the year has been without a serious insect outbreak of any 

 kind. 



