REPORT OF ASSISTANT DAIRY INSTRUCTOR. 2"] 



First hispection. 



It shall be required that all seed planted in the seed fields 

 shall be treated with formaldehyde solution or corrosive sub- 

 limate solution, to prevent blackleg and common scab. In addi- 

 tion it is recommended that cut seed be rolled in sulphur. 



Blackleg: More than 80 hills per acre will disqualify. 



Varietal Mixtures : More than 240 hills per acre will dis- 

 qualify. 



Weak Plants, including Curly Dwarf, Mosaic, Wilt, etc. : 

 More than 500 hills per acre disqualifies. 



Leaf Roll : A single specimen disqualifies. 



Second Inspection. 



Time, prior to harvest, while foliage is still green. 



Blackleg: More than 16 hills per acre disqualifies. 



Leaf Roll : One specimen disqualifies. 



Varietal Mixtures : More than 80 hills per acre disqualifies. 



Weak Hills : 100 hills per acre shall be dug for sample. 

 Five per cent producing conspicuously less than average yield 

 will disqualify. (In case of doubt, check result). 



Powdery Scab : A single specimen disqualifies. 



Wilt, including such diseases as Mosaic and Curly Dwarf : 

 More than 160 hills disqualifies. 



Late Blight : Amount shall be reported by inspectors, that it 

 may be entered upon certificate. 



Third Inspection. 



Time, at or before awarding of certificates. 



Any Powdery Scab causes rejection. Certificates shall state 

 percentage of trueness to type or purity. 



The grower shall agree to remove all decayed and badly 

 damaged tubers before shipment, and to remove from seed 

 stock all potatoes badly infected with sclerotis and common scab. 



No seed stock shall be sold containing tubers of less than 

 three ounces or more than ten ounces, and four to eight ounces 

 is recommended as the size most satisfactory. 



Growers were invited to enter their fields, paying a small 

 entry fee, varying from $1.00 down to 60 cents per acre, accord- 

 ing to the number of acres entered. The growers were asked 

 to fill out and return to the ofifice the following blank : 



