MUSHROOM GROWING 



bearing in mid-winter will usually cease to 

 be productive with the warm weather of 

 May or early June; those coming into bear- 

 ing earlier may not last until the warm 

 weather. None of the old compost, soil, 

 etc., used in the beds should be employed in 

 any subsequent mushroom crop. It would 

 be a source of great danger, probably in- 

 creasing many times the amount of disease 

 and insect injury. It is, however, excellent 

 compost for flowers, lawns, and gardens. 

 When the beds have been dumped and the 

 old compost removed all wooden supports 

 and boards, as well as the walls and floors of 

 the house should be thoroughly cleaned. 

 Preferably the boards may be taken from the 

 house or cellar, and as soon as dry white- 

 washed with a lime-wash made from good 

 stone lime, or thoroughly sprayed with 

 strong copper sulphate solution. Where 

 possible the walls of the cellar should also 

 be sprayed with one of these washes, or the 

 cellar may be fumigated with hydrocyanic 

 acid or sulphur fumes. 



86 



