

RECOMMENDATIONS. 351 



8. That the elm trees on the Green and other interior parks of the 

 city be sprayed regularly for a few years, and thereafter as seems 

 necessary, in the way prescribed. 



For this purpose the city should buy a spraying outfit of approved 

 construction, such as has been described, costing about $500.00. 



9. That in winter systematic search be made in all belfries and 

 towers of public buildings, and that the elm leaf-beetles, which winter 

 in great numbers in such places, be gathered up and destroyed. 



10. We also recommend the permanent employment of a City 

 Forester, who should have charge of the trees in all respects. 



xi. That, in case such an officer be employed, the city have a 

 nursery of from three to five acres at Springside Farm, where trees 

 suitable for planting on the streets and interior parks can be grown. 



Since the foregoing report was printed and issued as Bulletin 

 131, we have been favored with the comment and friendly criti- 

 cism of tree wardens, city foresters and others who had special 

 knowledge of the subject. 



There is much difference of opinion as to the best season for 

 pruning trees. Mr. Christopher Clarke, City Forester of 

 Northampton, Mass., strongly recommends that shade trees be 

 pruned in Xew England between May I5th and June I5th. He 

 states that the sugar maple, as well as the birches, certainly will 

 bleed excessively if winter pruning is practiced. 



For covering the wounds made by cutting off branches, it is 

 noted that coal tar injures the cambium of certain kinds of trees 

 and small trees are especially liable to be hurt by it. Lead paint, 

 colored like the bark of the trees, is perfectly safe and is per- 

 haps as efficient as any substance used as a dressing. Prof. 

 L. H. Bailey, in The Pruning Book, page 113, says: "My 

 conclusion is, after having had the question in mind for a decade, 

 that a heavy application of lead paint is the best all-round dress- 

 ing for common pruning wounds." 





