I'lIK LOCI'S r lUiUKU. 13 



ill t'ai't, it is till' writci's opinion tliut, with this pi-ccjiution ]iro])crly iiiul 

 roiitiiiuously ftiriicd out. locust may l)c successfully protected from 

 the borer in any locality. 



si HSKi.H KN r MA N A( ; K.M KNT. 



In tilt' sul)sc»(iu'iil iiianaij^cmcnt ot' plantatioti> and of natural t"i»rest 

 and sprout j^rowth it is impoi'tant cticli ycai' to locate and destroy the 

 worst infested tre(>s for the purpose of killing- the horei's in the wood, 

 and to conduct the thinninuand commei'cial cuttinu' ()p<'rations durin»; 

 the period hctween Xoxcmlx'r of one year and May of the next in 

 order to destroy the ee'^s an<l youn«i" ht^^'ore they enter the wood. 



^^'orthless. seiuhhy, horer-infested trees should he killed oulrii^-Jit 

 hy >tripi)ine' the l)ark from 4 or "> feet of the lower stem during 

 Auj^ust to ])revent sprouts and seed production froiu them and at the 

 same time to destroy the ei;"ifs and youn;^" borers. Trees deadened in 

 this manner, as was demonstrated near Morgaiitown, W. \'a., some 

 years ayo, may he so completidy killed that not a sinulc root sprout 

 will appear. Therefore this method is of special value in preventing 

 sprout n^production from inferior individual trees. 



COLLKCTINc; THK HKETLKS FKOM OOLDKX-KC )1) FL(^WERS. 



Collecting the beetles from golden-rod flowers, by means of insect 

 sweep nets, before they deposit their eggs, would be advisable, even 

 for the protection of large plantations, and, as has been suggested, the 

 planting of i)atches of the plant, or the cutting of all but certain strips 

 and ])atches of natural growth for this purpose, would serve to con- 

 centrate the ))eetles where they could be caught in the nets and 

 destroyed l)y emptying them into a pail containing water covered 

 with a lilm of kerosene. 



COISONKO KAir. 



Experiments should also br made with poixtiird baits, ms suggeste<l 

 on i)ages T-S. 



SUGGESTIONS FOR PROPAGATING BORER-RESISTANT TREES. 

 KU<»M SKi:i> (SKM Al, MKllUM)). 



The fact that some trees are, to a greater or less extent, inimuiu' 

 from attack or injury by the l»orer. while adjacent, ones in the same 

 grove are attai-ked year after year and seriously damaged, suggested 

 the idea of bretvling races and vaiieties of the species which would b»' 

 permanently immune. This suggestion was included in the plan for 

 cooperative investigation mentioned on pages 1-l'. It \\a- then thought 

 that if the seed for general planting were collected from immune trees 



