New York AGRICULTURAL EXPERIMENT STATION, 125 
plants on this series were kept free from bugs by three applica- 
tions of paris green in lime water (one-half pound to fifty gallons) 
made July 3, 13 and August 12. 
At Riverhead: Series I.—This series consisted of five rows—Nos. 
I, 4, 7, 10 and 13, which were sprayed with bordeaux mixture 
three times; namely, on June 14, July 18 and August 11. Paris 
green, at the rate of one pound per acre, was applied three times. 
The first application was made with bordeaux mixture in the first | 
spraying of June 14 and the other two in lime water on June 30 
and July 14. 
Series IJ—This series consisted of five rows—Nos, 2, 5, 8, II 
and 14. They were sprayed with bordeaux mixture five times; 
namely, on June 14, 30, July 14, 28 and August 11. Paris green 
was used only in the first two sprayings at the rate of one pound 
per acre. 
Series II].—Series III consisted of five rows—Nos. 3, 6, 9, 12 
and 15. These rows received no bordeaux. Paris green in lime 
water was applied three times (June 14, 30 and July 14) at the 
rate of one pound per acre. 
RESULTS OF THE TEN-YEAR EXPERIMENTS IN 1905. 
AS SHOWN BY THE CONDITION OF THE FOLIAGE. 
At Geneva.—When the plants were 3 to 6 inches high they were 
slightly injured by flea beetles before spraying was commenced. 
Later, about August 1, the beetles again appeared in larger numbers 
and during the next month injured the unsprayed rows of Series 
III considerably. The plants of Series II, on the contrary, were 
scarcely affected, showing very plainly the beneficial influence of 
bordeaux in controlling the flea beetle. On Series I, where the 
spraying was less thorough, they caused some damage. 
Early in August tip-burn began to appear on the unsprayed rows 
and continued to increase until it became quite prominent. Strange 
to say, the sprayed rows were almost entirely free from it. Tuip- 
burn is a physiological disorder and it is difficult to explain why 
spraying should prevent it. Possibly the unsprayed rows suffered 
more because they had been more injured by flea beetles. 
Early blight, Aliernaria solani, was almost entirely absent. 
