Tite De! iS as 22 ae ae Aq, tas, ae? DTA . : 4 ye ‘ 
a Ake Cae at bra yi ee a. eg ‘ it r ‘ \ 
Che Se ee a ey PA det ; ; 
ars SS Bent os >» ok + f i 

EXPERIMENTS witH Nursery StToox. 647 
ber 9 a count of those stocks forced by the premature fall of 
the foliage to put forth new leaves gave the following figures: 
Table 1.— Showing number of French stocks forced to put out 
new leaves. 
———————- : — 
on, = 
Total Per cent 
NUMBER AND TREATMENT OF STOOKS. soloed Vi taledte nN 
388 stocks treated 7 times with Bordeaux.....cccsccvccccecccccccvecseecs 4 
1.0 
356 stocks treated 3 times with Bordeaux.........cccccccccrevcnvcccceocs 55 16.4 
361 stocks treated 7 times with ammoniacal solution ..........ceceee0e0: 50 13.8 
357 stocks treated 3 times with ammoniacal solution .........ccceeeeeeee 161 45.0 
See RL EIRNESTUIIESELGOCL cies, gc a, we’el vhs chins aie vie Gleracd nial ode gs ofaleiateine ale diblaeeae berie en's 97 21.0 


1892.— The same rows of stocks as were employed in 1891 were 
treated in 1892, but one-half of them had been budded the fall 
previous, as subsequently described on pp. 666, 669. The other 
half were purposely left unbudded to furnish a means of testing 
the fungicides. The treatments were made on dates given above, 
using the formulz mentioned on pp. 670, 671. During the course 
of the season little difference between treated and untreated 
budded stocks was noticeable, as none but the Flemish Beauty 
were subject to the disease. At the close of the season, however, 
the foliage on treated Flemish Beauty was much superior to that 
on untreated. Bordeaux proved superior to ammoniacal solution 
and entirely efficacious. 
The greatest contrast in the. experiment was between the 
treated and untreated stocks which had not been budded. The 
susceptibility of these unbudded seedlings afforded an excellent 
opportunity to test the efficacy of the fungicides, and the results 
fully warranted the extended use of Bordeaux mixture upon 
such stocks. As early as June 24 the difference between 
treated and untreated sections was visible, 75 per cent 
of the foliage of the untreated being diseased, while the 
sections sprayed with Bordeaux mixture remained healthy. 
Plates 20 and 21 show fairly well the contrast as it 
appeared on October 11, the two rows standing only 
_ three and a half feet apart. The difference consisted not only 
- in the presence of foliage on the treated and its absence on 
