738 NEW YORK STATE MUSEUM 



cularly the shaded, underleaves. The work of this species was 

 less noticeable in vineyards where clean culture was the rule, 

 although the pest was very generally present. 



Shade and forest tree pests 

 Elm leaf beetle, Galerucella luteola Miill. This 

 imported species continues to be a serious enemy of European 

 elms in Albany, Troy and vicinity. The depredations of this 

 pest have been so severe as to lead to the maintenance and 

 operation of two power spraying outfits by the municipality of 

 Albany. Two are also in operation by a private owner in Troy, 

 where they are kept busy throughout the spraying season, each 

 individual paying for the treatment of his own 

 trees. The general condition of the shade 

 trees in both cities is much improved by this 

 work, and, considering all the trees in the 

 streets of both cities, the results are decidedly 

 in favor of Albany. This is probably due al- 

 most entirely to the fact that it is much more 

 economical to take a street at a time and 

 spray all the trees than to go hither and 

 FIG. 13 Elm leaf beetle, thither as dcsircd bv private persons. The 



adult, much enlarged (re- ^ j. x 



dep^t'^agrrY^ewb^ol^ ms) fomier is possible only where the city under- 

 takes to spray all the trees on the streets, while the lat- 

 ter must obtain where spraying depends on the will and 

 financial ability of the owner of the abutting property. 

 It might be well to add that as a rule Albanians neglect 

 the trees on their own premises, while people of Troy 

 who have sprajdng done, invariably include the trees on 

 the premises as well as those in front of the property. 

 The' elm leaf beetle has almost undisputed sway in the poorer 

 parts of Troy, because the residents can not afford to have their 

 trees sprayed; while in Albany, these, as well as those inhabited 

 by the wealthier class, are treated, with most beneficient results, 

 because it is in these poorer quarters that shade is most 

 urgently needed. It therefore seems to me advisable to urge 

 the prosecution of such work, when necessary, on municipalities, 



