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cribcd. Young hickory, or pecan trees which are infested with tliese 

 insects are apt to be hisshapen, stunted, and so weakened that they 

 never make strong healthy trees. 



Contr-ol Measures 



If one will carefully examine young hickories, or pecans during 

 the first part of August, he can detect the points on the trunk where 

 the adult borers have deposited their eggs, and if these pits in the 

 bark are soiked with cirbon bisulphid. practically all of the young 

 , orcis which are then just starting to work in the wood beneath the 

 bark will be killed. 



C:;rbon bisulphid can be easily applied from an ordinary machine 

 oil ciai with the snout sligjitly stopped down. In using this chemical, 

 one must keep in mind the fact that it is explosive when mixed with 

 air, and that all fire must be kept away. 



Flat Headed Borer. Nut trees in common with most of our shade 

 and fruit trees are often seriously injured, especially the first year or 

 two after they are set by one of the so-called Flat Headed Borers. 

 Tl'.is insect in its adult stage, is a grayish-bronze beetle with a body 

 wider at the center, blunt at the head, and gradually tapering toward 

 the tail. They are about 1-2 to 3-1' of an inch in length when full 

 grown. The adult beetles are abroad from April to August. They 

 are very pronounced sun loving insects, and always seek the sunny 

 side of trees, or other objects on which they rest. The female beetles 

 lay their eggs in the bark of trees which are in an unhealthy con- 

 dition, or on healthy trees where some injury has occurred such as a 

 mechanical wound, or sun scald. Nearly all the eggs of this insect 

 will be deposited on the south and southwest sides of the trees. The 

 young borers hatching from these eggs are a yellowish-white in color, 

 with a very pronounced enlargement of the body just back of the head, 

 which gives them their common name of Flat Headed Borer. They 

 feed in the inner birk of the tree during the late summer and fall, 

 and work into the wood of the tree upon the approach of cold weather, 

 forming a cell in which they change during the next spring to the 

 pupal, or resting stage, and come out as adult beetles during the 

 spring and summer. 



Control Measures 



The young borers may be killed by going over the trees carefully 



