456 



STATE BOARD OF AGRICULTURE. 



After August 1st, while an occasional cluster affected by brown rot could 

 be found on both the dusted and sprayed plots, it did not become at all serious 

 at any time on these plots, so that at harvest both were in excellent condition. 



Brown rot developed gradually on the check trees until picking time when 

 the fruit on several trees was not worth harvesting. 



Control of brown rot after harvest. One bushel of fruit was picked from 

 each plot, care being taken that no rotten fruit was included. The sample 

 from the check plot was taken from the trees in the best condition. The 

 results are here stated as follows : 



After three days the fruit from the check plot was entirely decayed and 

 worthless. 



After six days the dusted fruit was in excellent condition but that from the 

 lime-sulphur plot was almost all decayed. 



After twelve days at least one-half the dusted fruit was still sound. 



These results, then, show the relative value of no treatment with the regular 

 summer sprays and with the regular sprays plus a late application of dust 

 to improve the keeping quality of the fruits. The results secured by both 

 dusting and spraying in the control of brown rot up to the time the fruit was 

 harvested were very good. The late application of sulphur dust was valuable 

 in preventing the development of rot after the fruit was picked. 



Fig. 10. — Fruit from check trees showing the proportion of sound, scabby and rotten peaches. 



