44 HATCH EXPERIMENT STATION. [Jan. 



the bugs had ceased to be troublesome, thejjure ^^Fungiroid" 

 were employed. The season was hot, with frequent showers, 

 furnishing, therefore, conditions highly favorable to the de- 

 velopment of parasitic fungi, and extremely unfavorable to 

 the action of the "Fungiroid." It was, however, reapplied 

 at frequent intervals, and always after a heavy rain and while 

 the vines were moist. 



The treatment was applied to one row each of the 60 

 varieties in our variety test. One row each of 08 of these 

 varieties, in an adjoining plat, upon similar soil and grown 

 under precisely similar conditions, w^as left untreated. No 

 difference whatever could be detected in the extent to which 

 blight affected the treated and untreated vines. ' ' Fungiroid " 

 and Par ii^ green mixture (prepared) was applied at the rate 

 of 2 pounds per acre to the vines of the treated plat with 

 Leggett's gun, and in accordance with directions, on each of 

 the following dates: July 13, 18, 'I'l and 24. Pure "Fun- 

 giroid" was applied twice, at the rate of 1^ pounds per acre, 

 and in the same manner, on August 1 and 3. By the latter 

 date blight had affected all varieties in the plat and to a 

 considerable extent in most cases. The yield from 38 rows 

 treated as described w^as 7,887^ pounds of large and 983 

 pounds of small potatoes. The 38 rows which were un- 

 treated produced 8,407 pounds of large and 9G0 pounds of 

 small tubers. The results surely indicate no favorable influ- 

 ence due to the use of " Fungiroid." 



Scab of Potatoes. 

 It has been thought by some experimenters that, by an 

 application of sulphur at the time of planting, " scab" of 

 potatoes, even in infected soil, could be prevented. Accord- 

 ingly, as we had such an infected soil where a very scabby 

 crop was raised last season, it was decided to test this point. 

 The plan of the experiment was as follows : one-half the seed 

 required was treated with corrosive sublimate solution in the 

 usual way ; then 240 hills were planted with each kind of 

 seed (treated and untreated), and in the furrow with one- 

 half of these hills sulphur at the rate of 300 pounds per acre 

 was scattered at time of planting. The table below shows 

 the results : — 



