Bie r ; 
544 . Report oF THE HortTIcULTURIST OF THE 
4. Ammoniacal solution of copper carbonate (five ounces copper — 

carbonate, three pints ammonia twenty-six degrees, ‘fitty gallons a Pe: i 
water) one hour. 
5. Potassium sulphide (one ounce sulphide, two gallons em 
one hour. 
In the last of the greenhouse experiments a: a bene was 
prepared with rich soil over a layer of well-votted sod. Jn it was 
planted diseased seed treated according to cach of the above 
Three rows were allowed for — 
methods excepting the first one. 
each treatment and five rows were left untreated. When the 
young plants appeared there was an abundance of disease on 
all classes. After a few weeks the remaiaing plants became 
well established, and the disease in every case made so litile © 
progress that no marked difference could be seen between the 
plants of the different classes. A comparison of the effects of - 
the various methods of treatment used can, 
made fromi the records of germination and disease during the 
first weeks of the experiment. Plants removed in thinning the 
rows are included in this report. It is probanle that many of 
these which were very young but apparently healthy when 
removed were in reality infected at that time and would finally 
have dropped into the diseased class as did others like them which _ 
were allowed to remain. By means 92f the following table the 
apparent results of the different treatments may be compared: 
Per cent, Per cent 
diseased or that heal hy 
failed to Per cent. removed in 
Treatment. grow. healthy. thinning. 
Untreated, five rows ....... ei Ss lee 60 5 38.3 
Bordeanx, thHree-TOWS | sans. sca eee s 58.3 16.6 pL) 
Ammoniacal, three rows ......... AS 58.3 8.3 Sep: 
Wipe ater, three ‘TOWS) jesse ssa ce a fe 50 25 223. See 

La ee —_—— 

It appears that the hot-water treatment gave the greatest 
freedom from disease. When this line of investigiiion was con- 
tinued in field experiments the Bordeaux mixture and ammoniacal - 
solution of copper carbonate were dropped from the list of fungi- 
cides used in soaking the seed since, as shown in the above table, — 
they gave less favorable results than did the hot water treatment, 
therefore, best be — 
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