New Yorx AGRICULTURAL ExpeRIMENT STATION. 329 
a good growth considering the weakened condition they were in 
in the spring owing to previous serious attacks of the disease. 
In all tests a check row was left for comparison. In Series I 
there was one row of each treatment and one check row set aside 
for the purpose of clipping off the mildewed tips as they appeared. 
The object was to determine whether or not it would pay to do 
this extra labor in a commercial plantation. It was necessary 
to drop this part of the experiment because no mildew appeared 
on the tips. A fair crop of fruit was marketed green the latter 
part of June. 
RESULTS. 
Table III shows the percentages of mildew from the various 
tests. Series IV is the part which received winter treatment. 
TapLe II].— PERCENTAGE OF MILDEWED FRUIT IN GENEVA EXPERIMENT. 





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Soda Bordeaux — 1 to 10 formula.... 1.3 9 2.2 
Ammoniacal solution of copper car- 
RIM RE EOP ee ee e's ale sw crn ar a oe 2.3 1.2 3.2 
Strong ammoniacal solution of cop- 
per carbonate plus sodium-carbonate. 1.3 1.5 1.8 
Potassium sulphide, 1 oz. to 2 gals. 
EME Sig) cle eo -e oug e harsp- aya a + agence 3.5 1.8 3. 
ee i ks sip. sae one (ie: 3.4 5.9 ees 
Copper sulphate, 1 oz. to l gal....... bite if. tae 3.9 
Iron sulphate, saturated solution, plus 
iper cent, sulphuri¢ acid *.’.. 2... ee Fe, ae 2.3 
Soda Bordeaux — 1 to 5 formula .... sage ve aot 2.6 
Ammoniacal solution of copper car- 
bonate, 1 oz. to 5 gals. water ...... sir! tts Sigs 1.4 
Ammoniacal solution of copper car- 
bonate, 1 pound to 25 gals. water, 
plus sodium carbonate, % pound... ire ah eet 2. 
Potassium sulphide, 1 oz. to 1 gal. 
Re ee oo ne Ge shad dn a oe sites kare ee 2.9 
Copper sulphate, 1 oz. to 1 gal.—check 
row with winter treatment only... ome eas age 9.3 
SC et SR ae 0) ee ot erate scare a4 ete ah Stes 16.5 

