MUSHROOM ENEMIES 



Careful experiments have been made to 

 determine the means of control. For de- 

 tails of this work the reader should consult 

 the paper by Veihmeyer mentioned above. 

 Costantin and Dufour recommend spray- 

 ing the affected bed or the diseased areas 

 w^ith a 2J/2 per cent, solution of lysol. Many 

 of the sanitary fluids used as dips or sprays 

 in poultry work are of the same nature and 

 might be employed. The possibility of 

 carrying over such a disease from one sea- 

 son to the next and having it occur with in- 

 creasing intensity is one of the reasons for 

 complete fumigation after the house has 

 ceased to bear for the season. The house 

 also may be thoroughly sprayed with a 

 lysol or sanitary fluid, yet even more effec- 

 tive would be complete fumigation with the 

 vapors of formaldehyde as described in the 

 next section. 



Fumigation. The best time for the fumi- 

 gation of mushroom houses, having in mind 

 particularly the destruction of the Myco- 

 gone Disease as well as of insects, is shortly 



139 



