foe. A. B. BH. Bul. 68, Part VI. D. F. I. L, April 24, 1908. 
PAPERS ON DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
GRAPE ROOT-WORM INVESTIGATIONS IN 1907. 
By FRED JOHNSON, 
Engaged in Deciduous Fruit Insect Investigations. 
INTRODUCTION. 
For several years past the control of certain insect enemies of the 
_ grape has been a problem of increasing importance with the vine- 
_ yardists of the Lake Erie valley. The insect causing most alarm is 
_ the grape root-worm (Fidia viticida Walsh). It was in 1899 that 
} serious injury to the grape vine, which proved to be the work of this 
' pest, was first noticed in the famous Chautauqua grape region, at Rip- 
; ley, N. Y. For several years previous to the discovery of this insect 
~ in Chautauqua County, it had made serious inroads into the vineyards 
_ of the Ohio grape region, and was, in 1895, the subject of investiga- 
_ tion by Prof. F. M. Webster, then entomologist of the Ohio Agricul- 
‘ tural Experiment Station, to whom we are indebted for the first 
_ records of its complete life history and methods of control, a report 
; of which was published in Bulletin No. 62 of the Ohio Agricultural 
i Experiment Station. 
i Since 1900 this pest has esha the subject of investigations in Chau- 
_ tauqua County, by Dr. E. P. Felt, State entonidlopist of New York, 
and Prof. M. V. Slingerland, of the Agricultural Experiment Station 
~at Cornell University, both of whom made a life-history study of the 
insect and conducted field experiments in jarring and spraying the 
"vines to reduce the number of beetles. The results obtained by these 
- gentlemen are embodied in Bulletins 59 and 72, New York State Mu- 
-seum, by Dr. E. P. Felt, and in Bulletins 184, 208, and 224, of the 
Cornell University Agricultural Experiment Station, by Prof. M. V. 
Slingerland. In Farmers’ Bulletin No. 284, on Insects and Fungous 
Enemies of the Grape East of the Rocky Mountains, by Messrs. A. L. 
Re intance and C. L. Shear, the grape root-worm is described, and its 
life history and methods of contr rol are briefly stated. 
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