IV. PRELIMINARY NOTES ON THE GRAPE 
VINE FLEA BEETLE.* 

V. H. Lown. 

SUMMARY. 
The grape vine flea beetle has been unusually abundant during ~ 
the past season. The adults feed on the swelling buds, and to a cer- 
tain extent upon the leaves. The principal injury to the leaves is by 
the larve. Experiments with this insect are not yet completed. The 
adults have been checked, however, with Paris ereen, at the rate of 
a pound to 50 gallons of water, with the addition of enough 
freshly slaked lime to make the mixture milky in appearance. 
This mixture should be applied to the vines in a fine spray as soon 
as the adults appear. Later applications against the larvee may be 
made with Paris green, 1 pound to 150 gallons of lime water. 
INTRODUCTION. 
_ This insect was unusually abundant in the grape growing sec- 
ticns of the State last year. In the Keuka Lake region it was 
estimated by-an extensive shipper that at least 10 per cent of the 
crop was destroyed last season. Some of the large vineyards in 
the vicinity of Bluff Point were entirely stripped of their foliage, 
with the result that no grapes were produced and the vines were 
much weakened. 
As a result of this unusual injury numerous requests have 
come to the Station asking for information concerning the life 
history of the insect, and what should be done to prevent serious 
injury another year. Although the investigations and experi- 
ments in this direction are not yet completed, it seems advisable 

* Reprint from Bulletin No. 150. 
