230 



Agricultural Gazette of N.S.W. 



[April 3, 1920. 



found ; when partially afl'ected it was the later stalks tliat suffered. In 

 this season the loss was conservatively estimated at 5 per cent. It was 

 much more prevalent in the early than in the later sowings. 



1915. — Half of the area was treated with sulphate of iron at 5G lb. jjer 

 acre, at a cost of 3s. 6d. There was very little of the trouble this year. The 

 plots treated were examined and no disease found. In the untreated half, 

 ten affected plants were counted At the end of the season it was noted that 

 there was a little disease throughout the plots, but the patches were larger 

 and more frequent in the untreated area. 



The Effects of Disease on Heads of Major Wheat 



The pinched appearance of the outer heads coniiiared with the inner ones illustrates 

 the loss the disease occasions. 



1916. — A good many partially-attacked plants were noticed throughout. 

 Thew wheat was quite liable and no variety was exempt. Sulphate of iron 

 was not u.sed this year. 



1917. — This season the whole area was top-dressed with 100 lb. sulphate of 

 iron per acre a numth before sowing. It was noted that a good deal of the 

 trouVjle occurred in the early sowings. 



