12 



Where the seed did not produce enough eyes for four rows, only 

 one or two were planted. 



The Ibllowino; table oives the results : 



*Seriously injured by drying before planting. 



COMBINED FUNGICIDES AND INSECTICIDES IN 

 POTATO GROWING. 



For the past two years the potato crop in Massachusetts has been 

 seriously injured by blight and rot caused by the minute parasitic 

 plant (Phytophlhora infestans) the history of the development of 

 which was given by Prof. J. E. Humphrey in Bulletin No. 6. To 

 overcome this injury and to make a success of the crop in our ex- 

 periment plot, the following experiments were made : 



The land containing the twenty-four varieties reported above 

 was divided into two plots — No. 1 including the first three hills 

 of each row, and No. 2 the fourth and fifth hills. 



To plot No. 1 was applied Paris green and plaster, one part of the 

 former to five hundred of the latter by weight. 



To plot No. 2 was applied Paris green in water, one teaspoonful 

 to two gallons, and one-fourth ounce of sulphate of copper. 



In both plots the potato beetle larva were effectually destroyed. 



