ANTHEACNOSE OF THE MANGO IN FLORIDA. 5 



into 7 blocks, the sprayed blocks alternating with the unsprayed. 

 Block 1 contained 26 trees and the remainder 6 each. Thus, 4 blocks 

 were sprayed and 3 unsprayed. The spraying schedide is showT:i in 

 Table I. 



Table I. — Spraying schechde followed on the Mulgoha mangos on the Flanders place, 



Miami Fla., 1912. 





Block. 



Dates of spraying. 





March. 



April. 



May. 



June. 



No. 1 .. - 



8,11,14,19 

 8,12,19 

 8,13,19 

 8,14,20 



4,22 



4,29 



4 



4 



13 



27 

 6 

 13 



3,24 



No 3 



24 



No 5 



10 



No. 7 



24 







It was planned to spray block 1 every third day, block 3 every 

 fourth day, block 5 every fifth day, and block 7 every sixth day 

 beginnmg when the buds began to swell and continuing until the 

 flowers had opened. The treatment was suspended at that time, 

 March 19, until the fruit had set, and then resumed. Thereafter the 

 spraying was to be continued at intervals of three, four, five, and six 

 weeks, respectively, until about two weeks before the fruit was to be 

 picked. It will be seen by examining the dates that the spraying 

 prior to the setting of fruit was varied slightly in blocks 1, 3, and 5. 

 This was due to rainy weather. 



On June 29 the fruits on all the trees were examined and careful 

 notes made of their condition. Those which showed no blemishes 

 were classed as clean, those but slightly marked as slightly diseased, 

 and the remainder as badly diseased. The fruit counts are shown in 

 Table 11. 



Table II. — Fruit counts of the Mulgoha mangos in the spraying experiment on the Flan- 

 ders place, Miami, Fla., 1912. 



Block. 



Condition of the fruit. 



Clean. 



Slightly 

 diseased. 



Badly 

 diseased. 



No. 1 (sprayed) . . 

 No. 2 (unsprayed) 

 No. 3 (sprayed)... 

 No. 4 (unsprayed) 

 No. 5 (sprayed). . 

 No. 6 (xmsprayed) 

 No. 7 (sprayed) . . 



The trees in this experiment bloomed lightly and in egularly, and the 

 total number of fruits harvested from each sprayed block is not suffi- 

 cient to give any definite conclusions in regard to the relative merits 

 of the various spraying schedules; but the fact that considerably more 

 fruit was carried through to maturity on the sprayed than on the 

 unsprayed trees indicates that the protecting of the panicles from 



