1 84 TREES AS GOOD CITIZENS 



ness. Proper care and attention on this point are essen- 

 tial, and immunity from damage to highly prized trees is 

 cheaply purchased by the application of adequate safe- 

 guards and remedies. The real expense lies in neglect. 



Inspection of the trees from time to time is an impor- 

 tant part of insect control. Careful examination some- 

 times results in the discovery of insects which have not 

 yet caused visible damage, and since early action is most 

 effective, this discovery may save much trouble. In a 

 community which has a tree warden or other shade tree 

 officials inspections should be made as a part of the 

 routine work. 



In a single volume it is not possible to discuss in detail 

 every insect enemy encountered in all parts of a country 

 as large as the United States. The most that may be 

 attempted is to treat of those which are most common 

 and general in their distribution, to show how these in- 

 sects and their work may be identified, and to point out 

 the remedies which have been found most effectual. 

 Supplementary information may be obtained from state 

 entomologists. Every state and territory maintains a staff 

 of technical experts and research workers whose function 

 it is to gather and distribute information as to the insects 

 prevalent within that particular field. Similar work is 

 carried on in even more elaborate fashion by the Bureau 

 of Entomology of the United States Department of 

 Agriculture at Washington. Specific inquiries through 

 either of these channels will bring detailed information 

 on local conditions which will often prove helpful. 



In communities where there is an efficient shade tree 

 commission, tree warden, arboriculturist or other author- 

 ity charged with responsibility for shade tree development, 

 these questions will receive more immediate and more 

 localized attention if placed before the proper official. 



