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The Southern Pine Beetle. 13 
ditions and requirements for disposing of the infested timber, and 
strict adherence to certain details which are absolutely necessary to 
the destruction of the broods. 
From the 1st of November to the 1st of the following March is the 
period in which to locate and mark the trees that are actually in- 
fested and in which the marked trees should be utilized or treated to 
kill the broods. In northern localities the period may be extended to 
the 1st of May. ; 
The method of destroying the broods which in each case is the 
most economical and effectual can be determined by the owners in 
each community if they are sufficiently informed on the essential 
facts. . ; 
Detailed advice, recommendations, or conclusions as to the most 
economical and effective method of procedure for any given area 
should be deferred until certain reliable information is at hand re- 
garding the local condition as to (a) the character and extent of the 
infestation, (0) the interest manifested by the people of the com- 
munity in the value to them of the pine and the importance of 
protecting it as the source of future revenue, (c) the assurance of 
the majority of the owners that concerted action will be taken 
according to a definite plan and purpose, and finally, if a demon- 
stration is desired, that local facilities will be offered for its success- 
ful prosecution. 
If the owners of pine will consider the protection of their timber 
jrom the standpoint of a common interest and will realize the neces- 
sity for concerted action in the control work, success will be assured. 
