EXPERIMENT STATION REPOET. 5GI 



the sparrow domination increases, but it will bo nianv years before 

 this interesting species disappears from our fauna. Its absence 

 this year was not unexpected, because in 1002 I wrote: "The 

 brood is a small one, the area of its appearance is limited in well- 

 settled regions, and it is doubtful whether in 1906 it will bo 

 noticed at all." 



SHADE TREE INSECTS. 



Attention has been called to the fact that increased interest 

 has been and is now being manifested in city shade trees, and that 

 Bulletin N^o. 181, dealing with the insect enemies of such trees, 

 has been in constant demand, until now very few copies remain. 

 The municipalities that began work in the recent past have con- 

 tinued their operations and have increased them in extent, while 

 others have either begim work or have manifested a desire to do 

 so. In' a greater number of cases individuals or bodies of indi- 

 viduals have taken up the matter in smaller cities, towns and vil- 

 lages, and in all cases where applications were made to the office 

 prompt attention was given and such reconmiendations were made 

 as seemed to be demanded. In every instance it was made clear 

 that it Avas the desire of the office to co-opernte to the extent of its 

 ability. 



•Ne^irark. 



The most complete organization f^r tlic care of shade trees 

 exists at ISTewark, wdicre the work is in the hands of a shade tree 

 commission with large powers and a liberal appropriation. 



April 13th, Mr. Dickerson went over the city, in a general way, 

 with Mr. Carl Bannwart, the secretary of the commission, who is 

 in general charge of the field work. It was found that as to the 

 cottony maple scale the prospects were that it would be present 

 in much smaller numbers than in 1905, although locally there 

 were trees as badly infested as at the same period last year. This 

 was offset by other localities in which the natural enemies had 

 made an almost clean sweep, and almost everywhere conditions, 

 were much improved. 



Oyster-shell scales were present in numbers on some poplars- 

 and other trees, and an Aspidiotus on maples was obvious in some 

 places. 



36 



