REPORT OF THE STATE ENTOMOLOGIST I9IO J 



(Xylina antennata) frequently designated as the green 

 fruit worm. The destructive work of the hickory bark beetle, 

 noted in a preceding report, has been continued. An unusual out- 

 break was that of Abbott's sawfly, a false caterpillar which stripped 

 or nearly defoliated many white pines in the foothills of the Adi- 

 rondacks. The spruce gall aphid has continued to be abundant and 

 injurious on Norway spruce, in particular. It is interesting to 

 record the discovery of another species of gall aphid, new to the 

 State, occurring upon the Colorado blue spruce. The above noted 

 insects have been the subject of correspondence and, in some 

 instances, of field investigations during the past season. 



Gipsy and brown tail moths. Much interest w^as aroused 

 early in 1909 by the finding of thousands of winter nests of the 

 brown tail moth on many shipments of French seedlings. A num- 

 ber of such nests occurred on shipments received in 1910, though 

 the pests were not so abundant as during the preceding year. The 

 careful inspection of the stock appears to have prevented this insect 

 from becoming established in the State. There is much more dan- 

 ger of this moth being brought into New York State on shipments 

 of full grown nursery stock originating in infested American terri- 

 tory than there is of its being introduced with imported seedlings. 

 It has been found necessary to give considerable time to the deter- 

 mination of remains of caterpillars, cocoons and ^gg masses in order 

 to be certain that none of these fragments on nursery stock indi- 

 cated the presence of either the gipsy or brown tail moth. The 

 mounting of such fragments has devolved upon Miss Hartman. 



A personal investigation of conditions in eastern Massachusetts 

 shows that no pains are being spared to prevent the dissemination 

 of either the gipsy or the brown tail moth. Particular attention 

 has been given to keeping the property abutting on the principal 

 highways free from the pests so as to eliminate in large measure 

 the danger of their being carried by vehicles of any kind. There 

 has been, however, some extension of the territory occupied by 

 these two pests. The gradual spread of these insects appears to be 

 inevitable, though the utmost care is taken in the treatment of the 

 outlying colonies. It is gratifying to state that the serious infes- 

 tation recently discovered at Wallingford, Conn, has been handled in 

 such a satisfactory manner that only a very few specimens rewarded 

 a week's careful search by a gang of fifteen men. An examination 

 of the work with parasites showed that no stone was being left 

 unturned in an effort to find, rear and liberate a large number of 



