98 Practical Forestry 



after being planted, trees and shrubs will require a certain 

 amount of attention in the matter of watering and mulching 

 during the prolonged heat and drought, and also in prevent- 

 ing the evils attending excessive wind-swaying owing to the 

 stakes and moorings becoming defective. 



The goat and wood leopard moth, as also numerous kinds 

 of caterpillars, attack newly-planted town trees, particularly 

 the various species of Pyrus, Thorn, Willow and Poplar. 

 The former tunnel into the main stem and render it so weak 

 at the point attacked that it readily breaks across during 

 windy weather, while the caterpillars feed on the foliage 

 and greatly impair the health of the trees attacked. Spray- 

 ing, hand-picking and shaking are to be recommended in 

 the case of the caterpillars, while, to combat the goat and 

 leopard moth, a small quantity of cyanide of potassium 

 can be inserted in the mouth of the tunnel in order to dis- 

 lodge or kill the insect. 



Watering should preferably be performed in the evening, 

 the ground around the roots being thoroughly soaked, 

 while mulching with freshly mown grass or old straw will 

 prevent the too rapid evaporation of the moisture. In 

 extreme cases binding the stem with a hay rope is to be 

 recommended. In order to prevent straining of the roots 

 and bark chafing, the moorings of trees should receive a 

 periodical examination. 



The following trees and i>t' r r ubs are to be recommended 

 for town planting I- 

 TREES 



The Oriental or Common London Plane (Platanus 

 orientalis acerifolia). This variety of the oriental plane 

 -tands first in the category of select town trees. Not only 

 does it grow vigorously in towns, but it is peculiarly well 

 adapted for withstanding smoke and other impurities of 

 the atmosphere. Repeated experiments have clearly proved 

 that in London this tree flourishes better than any other, 

 and a visit to the Thames Embankment and several of the 

 urban districts will substantiate the statement ; while the 

 fine old tree which still exists in Cheapside, and the equally 



