THE SOTTIIKHN PINK SA\VVKI{. 55 



scored surfaco, and in others tlu* strip was covered with brush, tliese 

 havins; been recoiniucndcd h)cany as remedies. In not a sinfjle 

 instance was the scoring, either with or without salt, found to 

 deter the larvae m the slightest degree. This method is not recom- 

 mended. 



Placing logs in water. — Investigation of the method of destroying 

 tlie larva> in infested h)gs by placing the logs in water was made at 

 Lumberton, Miss., where logs from the storm-felled trees were 

 placed in the null ])ond. The water killed all the larvie in the log, 

 both between the bark and wood and in the wood itself. TJiis 

 method is to he recommended ivherever practicahle. 



Barking the logs. — Barking the logs is effective up to the time the 

 larvae enter the wood, and for a short time thereafter — perhaps a 

 week. As stated elsewhere, the first part of the life of the larva is 

 spent between the bark and the wood, during which the larva feeds 

 upon the soft inner bark. It is absolutely impossible for the larva 

 to live for the first month of its existence without this soft inner 

 bark to feed upon. Therefore, if the bark be removed from the log 

 during this period all larva? between the bark and wood will be 

 destroyed. As stated elsewdiere, the larvae continue to feed upon 

 the inner bark for several days at least, after first entering the wood. 

 The \\Titer determined by experiment that the barking of the log 

 during the first few days after the larvae have entered the wood was 

 effective in destroying the larvae, by cutting ofT their food supply. 

 At this period the larvae have not gone deeply into the wood, so 

 that there would still be a saving if the barking were done at this 

 time. Where this method is practiced as a remedy, it shouhl be 

 done within forty days after the eggs are laid. If trees are felled 

 between March 1 and October 15, egg laying will probably com- 

 mence at once after the trees are down. 



An important point to be taken into consideration in this con- 

 nection is whether or not logs and trees barked to destroy the sawyer 

 can be taken to the mill before the sapwood decays from lying on 

 the ground. iVs the greater part of the injury by the sawyer is con- 

 fined to the sapwood, there will obviously be little or no saving in 

 barking logs which can not be used before the sapwood is destroyed 

 by decay. 



The ANTiter realizes, also, that in some cases barking may not 

 be profitable for other reasons. The local conditions in regard to 

 labor are often far from satisfactory. And it may be (pn'te im|>()s- 

 sible to assemble enough laborers to bark all the trees felled by a 

 heavy storm in time to save them from injury by the sawyer. It is 

 also true that in cyclone-felled timber the trunks are often so pil(Ml 

 up and entangled that it would be necessary to saw them into logs 

 and s(>parate them before they could be barked. However, taking 

 all these ])oints into considiTation, the writer ft>els thai in the 



