REPORT OF THE SOCIETY 



35 



OAT SMUT CONTROL IN 1924. 

 By B. T. Dickson. 



Experiments were continued during the season of 1924 at Macdonald 



College using Liberty oats and both oat siiuits. The grain was artificially 



noculated as in previous years (1, 2) and treatments were carried out as liefore. 



The grain was treated and sown on May 28th and 29th when the soil 

 moisture content was 15 per cent. Except for a shower during the night of 

 June 2nd, dry hot weather held from the date of seeding for about three weeks. 

 The plants emerged on June 6th — 10th, but field germination was considerably 

 reduced by the attacks of a Thysanuran which destroyed the embryo complete- 

 ly. Sparrows also were a constant source of trouble. Yield studies were thus 

 out of the question and this was further the fact because of very wet harvest 

 weather. 



Counts by heads were actually made of ever}' plant which came to maturity 

 The plots were replicated three times and each plot consisted of three rod 

 rows. 



The following summarizes the treatn^ent and counts. 



It will l:e noticed that dust treatments were best for the season as far as 

 smut control is concerned, the results l^eing: 



Oat Smut control counts. — 1924. 



