26 TOWN PLANTING 



planted town trees, particularly the various 

 species of Pyrus, Thorns, Willow, and Poplar. 

 They either tunnel into the main stem and 

 render it so weak at the point attacked that it 

 readily breaks across during windy weather, 

 or, in the case of the caterpillars, feed on the 

 foliage and greatly impair the health of the 

 trees attacked. Spraying, hand-picking and 

 shaking are to be recommended in the case of 

 the caterpillars, while, in that of the goat and 

 leopard ftioth, a small quantity of cyanide of 

 potassium inserted in the mouth of the tunnel 

 will either dislodge 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 

 greatly 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. 



