Reports to the Board of Ag7'icMltMre. 47 



the Corn Weevil, the climate not being warm enough for C. oryzce to 

 flourish to any extent. 



Treatment. 



1. Well clean out the barn or other building in which the 

 beetles have been at work ; walls, ceiling and floors should be 

 cleaned, washed with whitewash and soft soap and all refuse burnt. 



2. Keep grain in bulk and constantly stir. 



3. Keep well ventilated with cold air and plenty of light. In a 

 warm climate ventilation would do no good, but cold air soon checks 

 their reproductive powers. 



4. If the store house or barn is fairly air-tight, close up all 

 openings where possible and then fumigate with bisulphide of carbon. 

 Evaporate 1 lb. of the bisulphide of carbon to every 1000 cubic feet 

 of space (about). Put the carbon about the surface of the grain in 

 flat saucers — the heavy fumes penetrate through the grain and kill 

 all forms of life, but do not harm the grain — leave closed for 

 twenty-four hours and then well ventilate and move the grain over. 



If the grain could be treated in closed bins so much the better — 

 1 lb. of the bisulphide to every 100 bushels of grain is sufficient, 

 leaving for twenty-four hours. 



A caution must be given that this substance is : — 



1. Inflammable. 



2. Both the fumes and liquid poisons. 



A detailed report on this pest is given in the Journal of the S. E. 

 Agricultural College, No. 5, pp. 11-21, 1897. 



The infested grain given to poultry would do no harm — the birds 

 would devour the insects as well. 



FUNGOID DISEASES. 

 Fungoid Disease in Black Currant Leaves. 



{Septoria rihis.) 



The currant leaves sent to the Board of Agriculture from Wickham 

 Market, Suffolk, are invaded by a fungus which produces so-called 

 Currant Eust or Leaf Spot. The fungus is apparently Septoria rihis. 

 This disease attacks all kinds of currants, and appears, as a rule, 

 about the beginning of July. 



It is first noticeable as small brown spots. Dull whitish spots 

 also appear, but these may be due to another fungus. Both may be 

 treated, however, as one, so far as remedies go. 



