10 INSECTS INJURIOUS TO MUSHROOMS. 
rapid multiplication is thereby greatly checked, reducing infestation 
to a minimum. If these recommendations are carefully followed 
there should be little necessity for the radical measures of fumigation 
or destruction of the beds. 
Approved: 
JAMES WILSON, 
Secretary of Agriculture. 
Wasnineton, D. C., April. 17, 1912. 
ADDITIONAL COPIES ofthis prblication 
may be procured from the SUPERINTEND- 
ENT OF DOCUMENTS, Government Printing 
Office, Washington, D. C., at 5 cents per copy 
