6 St)ME INSECTS INJURIOUS TO FORESTS. 



have so far (lone little (laniajje in gouthwesterii Kansas, but they are moving both 

 southward and westward. They are abundant at Pratt, Kinsley, Dodge, and Scott, 

 and are api>earing at Medicine Lodge, Coldwater, INh'ade, and Garden City. Yet of 

 the nunil)erless trees that have been killed or seriously injured nearly all reacheil a 

 size that could well be used for posts or stakes before succumbing. This shows that 

 black locust may be successfully grown in commVrcial plantations if cut as soon as 

 large enough for i)Osts. * * * 



Just south of the Kansas line, in Woods County, (»kla., black locust grows romark- 

 al)l_v woll, and has not yet been molested ]>y ]»orers. 



Cotton (1!)()5) observed that in Ohio injury was oroater in siiiole 

 trees and plantations of considerable size than in natiiral forests. 



Dearborn found that whitewashino- the trees in April and lillino- the 

 holes with mortar in friily was not entirely successful as a remedial 

 measitre, but he sugg^ested cutting out and burning infested trees in 

 April and protecting the young, thrifty trees. Harris suggested the 

 collection of the l)eetles l)v children, and Fitch, the planting of golden- 

 rod to attract the beetles, so that these could l)e collected and destroyed. 

 Lintner suggested the application of soap solution and carbolic acid 

 to prevent the beetles from depositing eggs, and the cutting out of 

 young larvse when their presence is indicated \)y sap and borings. 

 Riley suggested destroying the young l)orers as soon as hatched. The 

 writer recommended severe pruning in March, and clean culture was 

 recommended by Felt. 



The insect has been recorded from Canada southward to l\)ntchar- 

 train. La. , Texas, and Indian Territory, and westward into Nebraska. 



Some of the records of destructive ravages are the following: Peck 

 (1818), Harris (1826), in New England; Fitch (1858), in New York; 

 Rogers, Reed, and Bethune (1855 to 18()T), in Canada: AA'alsh (lst>(;), 

 in Illinois and Kansas; Laurent (1893), around riiiladelphia: the writer 

 (1891 to 1898). in West Virginia; Smith (1898), in New Jersey; 

 (.Cotton (1905), in Ohio; White (1906), in the ^Mississippi Valley. al)out 

 twenty years after extensive planting was begiui by settlers. 



KK^■ISION OF I'UHLISHKl) DATA. 



Some of the published records relating to the insect which have 

 been freqtiently quoted or repeated re(iuire. according to the writer's 

 observations, some amendments and corrections. 



It woidd appear that normally but a single egg is deposited in a 

 place, rather than clusters of four to nine. The female does not 

 pierce the bark or place her eggs in the canibiuui hiyer. The larva' do 

 not enter the sa])\vood ])efore winter, but, as observed l\v Dearborn 

 and verified by the writer, remain in the outer portion of the inner 

 bark. Records of the insect infesting honey locust are probably due 

 to the fact that the black locust is somctinu\s referred to under this 

 name, which is the correct one for an entirely diti'erent tree. It 



