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A certain few trees should rarely, if ever, be used in street treeplanting. This list comprises such trees as the horse chestnut, boxelder, black locust, willows, birches, and poplars. Birches and locustsare too short lived. The horse-chestnut and the box elder are littering in their habit. The poplars are subject to disease as well as beingshort lived, and the willows are not adapted to shade tree purposes,even in their habit of growth. In spite of the fact that there are someexcellent trees as shown in the first and second lists in this chapter,well adapted to street and avenue planting, and thoroughly testedthrough a period of years, yet many individuals responsible for theselection of these permanent assets or detriments to the public streetswill still select trees such as those which are included in the third list ofthis chapter. |
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