Kxri.KiMKNT Si x ( ton- IV i: i . i < vi n ,x s. — T he work of the ex- 



which are of considerable value to the members of this society. 

 I will briefly refer to a few, citing the bulletins where they 

 are more fully detailed, in order that those who so desire may 

 make application for them to the several stations and procure 

 copies before the editions shall be exhausted. 



The Pear Tree Psylla.— Mention has been made of the re- 

 markable cessation during the past year of the ravages of the 

 pear tree psylla in the Hudson river valley. This insect is 

 not confined to the eastern part of the state of New York and 



dlnc ral b nd ^^^^^^^ mrt^ 



versity by M. ^ Slingerlan^ and kTre^ltsTpuW^hed man 

 illustrated bulletin of 28 pages, being Bulletin 44, October, 

 *»92, of the University Agricultural Experiment Station. Its 

 J^-.^story has been worked out and the remedies available 



imented with, the ^coefficient was^ found to be kerosene 

 emulsion sprayed upon the insect while in its larval stage, 

 before acquiring wings. A single spraying with the standard 

 emulsion, reduced with 25 parts of water (less than 3 per cent, 

 of kerosene) killed, as estimated, from 75 to 90 per cent, of 

 the larvae. The early spring, just after the leaves had ex- 

 panded, proved to be the best time for spraying. In the 

 experiments made, the unexpected result was obtained that 

 the freely exposed eggs of the psylla were not to be killed by 



'''■ f 'V'' Injurious to the Blackberry. — In Special Bulletin > 

 « tneNew Jersey Agricultural Experiment Station, Novembe: 

 30, X891, Professor!. B. Smith, entomologist, has given pop 

 ular descriptions, accompanied with illustrations, of the mon 

 destructive blackberry insects, with suggestions regarding the 

 remedies to be used against them. 



Insects Injurious to Young Fruit- Trees. —The entomologist 

 °j the Oregon Agricultural Experiment Station, in Bulletin 

 Wo - 18, for March, 1892, has given popular accounts, with 



