REPORT OF THE STATE ENTOMOLOGIST I906 65 



He observed a decade ago a marked difference between localities 

 cultivated as described above and other places where no attempt had 

 been made to check the insects. So many were killed that he pro- 

 poses to adopt this measure on the next appearance of this brood, in 

 the hope of largely reducing the injury to his fruit trees. He is of 

 the opinion that the adults are rather local, remaining as a rule 

 near the place of emergence and rarely wandering away to a greater 

 distance than J mile. 



Preventive measures. There is no very practical method of 

 preventing injury by this insect, aside from refraining from 

 setting trees a few years before a large brood is due in a locality. 

 This caution is timely in respect to brood 12, due to appear in por- 

 tions of Albany, Columbia, Dutchess, Greene, Orange, Putnam, 

 Richmond, Rensselaer, Rockland, Saratoga, Ulster, Washington and 

 Westchester counties and on Long Island in 191 1. We would not 

 advise the setting of young trees in localities badly infested by this 

 brood, after the spring of 1907, and in certain situations where the 

 insect is exceptionally abundant, it will be wise to refrain from 

 setting out any more fruit trees till after the appearance of the brood. 



Something may be accomplished, as detailed above, by timely cul- 

 tivation and rolling, though it is obvious that these measures can be 

 advised only where there is liability of considerable injury to fruit 

 trees, or where conditions are such that comparatively little addi- 

 tional expense is involved, owing to the fact that there is need of 

 cultivating the ground about the time the insects appear. 



More valuable young trees and shrubbery can be protected from 

 injuries by inclosing them with netting, preferably the ordinary 

 mosquito netting, during the time the adults are abroad. This 

 measure is obviously limited in its application to smaller trees and 

 shrubs, and, as a rule, will be adopted only to protect the more 

 valuable ornamentals. 



VOLUNTARY ENTOMOLOGICAL SERVICE OF NEW 



YORK STATE 



Owing to a variety of causes the number of voluntary observers 

 communicating with the office has been exceptionally small. This 

 is due in part to relatively few important insect depredations, to a 

 loss of interest on the part of some, and to the fact that other 

 matters in the office prevented giving this branch of the work more 

 attention than was absolutely necessary. It will be observed, how- 



