260 REPORT OF THE HORTICULTURAL DEPARTMENT OF THE’ 
EXPERIMENT I.— EFFECTS OF BORDEAUX MIXTURE ON THE FRUIT 
AND FOLIAGE OF THE APPLE. 
The results of this experiment are conclusive. Bordeaux mix- 
ture causes the trouble commonly known in New York as “ spray 
injury.” All of the 40 trees sprayed with the different strengths 
of bordeaux mixture showed more or less injury to fruit and 
foliage. None of the five check trees showed more than a trace 
of such injury. A trace was found on two check trees, but the 
bordeaux mixture was found there also, having been blown or 
thrown into the check plats in spraying nearby trees. The follow- 
ing table gives the results: 
TABLE J].— Errects oF BorpEAUX MIXTURE ON THE APPLE. 



FRUIT. 
Plat | STRENGTH OF 
No. MIXTURE. 
Injured. | Uninjured.| Injured.| Scabby. bere? Scabby. 



C.S. Lime Water| Lbs. 02. | Lbs. oz. Pericts } Lbs. > Joe? |: bs nos Per ct 
te aa 1 —1 —50 182 LOM 2343 pues ai) 78 2.4| 24479 ot 3 
Dae ee i 2 —2 —50 111 0}; 2099 3 5.0 53 6 | 2156, 1 214: 
Basten. 3 —3 —50 209 5h 2445° 112 1.8 47 2°)" 260-7210 1 
Deg e 4 —4 —50 301 13 1530) 319 16.4 28 74 A803 AS Le 
Dit nets Check . Trace Zo09 oles 272 9 | 2269 12 10.7 
ye 1 —2 —50 47 Tee LoS Ses 1.9 137 4°} 92361 414 5.7 
Cb Sor eke: 2 —4 —50 107 12 2485 6 4.1 178 10 | 2414 8 6.8 
Senay am 3. —6 —50 311 0 2617 9 10.6 45 13}; 28834 are nS) 
Oe i oP 4 —8 —50 179 12e) 21487 ea #133) yh 2 | 1629. “11 ue 

* The percentage of injured fruit in Plat 1 is abnormally high because one of the five trees 
in the plat had 22 per ct. of its fruit injured. If we discard the crop of this tree and take 
an average from the remaining four trees in the plat we have instead of 6.1 per ct. 4.1 per 
ct. So, too, the percentage of injured fruit in Plat 9 is abnormally low because one of the 
trees had but 3.1 per ct. of injured fruit, far below that of the other four trees in the plat, 
the average percentage of the latter being AIS 
The crop was picked and sorted between September 24 and 
October 13. The weights given in the table include both picked 
fruit and windfalls. In sorting for bordeaux injury, apples having 
a sufficient amount of russeting to detract from the general ap- 
pearance of the fruit, were considered injured; all others were 
considered without injury. Many specimens showing traces of 
injury, under the above specification, fell in with the uninjured 
fruits. In sorting for scab, apples with well defined scab spots 
were designated as “scabby.” The crop was not a large one, 
averaging only 1034 bushels to the tree for the 45 trees; it was, 
however, well distributed, each tree in the experiment having its 
share of fruit. : 
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