210 



Practical Forestry 



quently to wage war against. Willow trees all over London 

 are suffering severely from attacks of a mite insect. It is 

 known as the " Witch's Broom " on the Willow (Eriophyes 

 triradiatus). 



Remedial measures are frequently of little avail, more 

 particularly when a whole wood or plantation is attacked ; 



WITCH'S BROOM ON THE WILLOW (WINTER ASPECT) 



but with single specimens the numbers may readily be 

 lessened by the methods suggested. 



Keeping the woodlands free of dead and dying trees and 

 branches is a preventive of insect attacks that should never 

 be neglected. 



As showing the injury that can be inflicted on our forest 



