12 
BULLETIN 510, TJ. S. DEPARTMENT OF AGRICULTURE. 
A broad survey of the lumber industry shows some instances where 
absolutely no atten- 
tion is given to yard 
sanitation (fig. 7) and 
also a few other in- 
stances where the 
yards are sodded and 
handled like a well- 
kept lawn (fig. 8). 
The great majority, 
however, fall between 
these extremes. As a 
rule, grass and weeds 
are kept under fairly 
good control either by 
mowing or by pastur- 
ing. In most in- 
stances some rotting 
debris is scattered 
about. The factor of 
location often plays 
an important part in 
P72F sanitation, for on 
Fig. 7. — A small, very insanitary mill in Louisiana. -. -. ,, -. 
The conditions at this mill are a disgrace to the lumber SWampy land, tile leS- 
industry. Note the rotten, dilapidated tramway, the sened fire danger 
lumber stacks placed within 2 to 4 inches of the , t , 
ground, and the debris scattered about and breeding t e n Cl S to encourage 
infection. carelessness. 
Any decaying tim- 
ber which has been 
allowed to accumu- 
late about the yards 
should be collected 
and burned. The 
mere carting of such 
debris to a conven- 
ient near-by pile (PL 
III, fig. 1 ; text fig. 9) 
is not sufficient, for 
the fungi will con- 
tinue to thrive in 
such material for 
long periods and to 
produce fruit bodies 
which will liberate 
millions upon mil- 
lions of spores into 
P73F 
Fig. 8. — The well-kept grounds of a high-class longleaf-pine 
mill in Louisiana. Practically all the lumber is run 
through the dry kiln and stored in large sheds, thus 
eliminating the problem of storage rots, 
