444 



THE GYPSY MOTH. 



Check experiment : none dead, 



No. 43.— May 28, 1894. Ten caterpillars, of the first 

 molt, were placed on lettuce leaves which had been treated 

 with Paris green and lime, in the proportion of 3 lbs. each 

 to 150 gal. of water. One died the third, three the fifth, 

 four the sixth and two the seventh day. 



Check experiment : none dead. 



No. 44. — June 10, 1894. Ten caterpillars, of the second 

 molt, were placed on elm leaves which had been sprayed 

 with Paris green and lime, in the proportion of 3 lbs. each 

 to 150 gal. of water. One died the second, two the third, 

 one the fourth, two the fifth, three the sixth and one the 

 seventh day. 



Check experiment : none dead. 



No. 45. — June 21, 1894. Ten caterpillars, of the third 

 molt, were placed on elm leaves which had been sprayed 

 with Paris green and lime, in the proportion of 3 lbs. each 

 to 150 gal. of water. Five died the third, two the sixth and 

 three the seventh day. 



Check experiment : two died the seventh day. 



No. 46.— June 29, 1894. Ten caterpillars, of the fourth 

 molt, were placed on elm leaves which had been sprayed 

 with Paris green and lime, in the proportion of 3 lbs. each 

 to 150 gal. of water. Two died the first, one the second, 

 two the third, one the fourth, one the fifth, two the sixth 

 and one the seventh day. 



Check experiment : none dead. 



No. 47.— July 11, 1894. Ten caterpillars, of the fifth 

 molt, were placed on elm leaves which had been sprayed 

 with Paris green and lime, in the proportion of 3 lbs. each 

 to 150 gal. of water. Two pupated the second and one the 

 third day ; two died the seventh and four the ninth day ; 

 one pupated the eleventh day. 



Check experiment : one died the third day ; two pupated 

 the fifth day ; one died the eighth and one the tenth day. 



No. 48 (field experiment). — July 7, 1894. Ten cater- 

 pillars, of the fifth molt, were placed on willow branches 

 which had been sprayed with Paris green and lime, in the 

 proportion of 3 lbs. each to 150 gal. of water. One died 

 the fourth and two the fifth day ; two died and one pupated 



