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New York AGRICULTURAL EXPERIMENT STATION. 263 
The latter, Bulletin No. 170, is a complete compendium dealing 
with the common diseases and insects injurious to fruit trees and 
small fruits, in which directions are given for fighting them effi- 
ciently and economically. Special attention is devoted to spraying 
methods and emphasis has been given to the advisability of sys- 
tematic spraying and as far as possible of combating diseases and 
insects with one general line of treatment. This bulletin was a 
joint production of the horticultural, botanical and entomological 
departments. 
SLUDIES: ON FIELD CROP INSECTS: 
ARMY WORM. 
(Fleliophila unipuncta Haw.) 
In 1896, considerable attention®® was given to this caterpillar, 
which was the cause of much alarm in the important agricultural 
sections during the early summer. The invasion of the army worm 
was one of the worst in the history of the State, and according 
to old settlers, no such destruction of crops by this pest had ever 
before been experienced by them. Complaints of injuries were 
received from twenty-eight of the leading agricultural counties, 
and, in reply to these, circulars, letters and telegrams were sent 
giving explicit instructions and suggestions, to check the migration 
of the caterpillars and to protect invaded fields. As the army worm 
is a general feeder, some farmers experienced a shortage of fodder 
crops for fall and winter feeding. While it was not possible to 
overcome this deficiency, suggestions were given to farmers for 
raising certain crops which could be grown at a late season to tide 
them over the emergency which the army worm had caused. 
COTTONWOOD LEAF BEETLE. 
(Lina scripta.) 
During 1894 and 1895 from one-half to three-fourths of the wil- 
low crop of Onondaga County was rendered worthless by this pest, 
which then constituted a serious handicap to the industry of grow- 
ing basket willows. At the urgent request of the leading growers, 
the Station carried on experiments,°° covering two years, to de- 
termine more efficient means for the prevention of injuries. At 
this time there had been various attempts to destroy the beetles by 
Bul. 104 and Rpt. 15:583-605 (18906). 
Bul. 143; same in Rpt. 17:323-344 (1808). 
