Insect Enemies of Trees 



201 



Being almost wingless, it is by no means difficult to pre- 

 vent their ascending the trees by painting a band of any 

 sticky substance around the stems of the trees that it is 

 expected they might attempt to crawl up. 



A. Larva of the Cossus Ligniperda, three years old, ready to change into 

 the Chrysalis state. 



A. Cossus Moth. 



B. Chrysalis from which the perfect Insect has escaped. 



C. Cluster of Eggs. 



D. Magnified Ovum. 



THE GOAT MOTH 



The Red Spider (Tetranychus). In hot and dry summers 

 trees suffer much from this member of the mite family. 

 Limes and poplars, as also many other trees, are greatly 

 injured, the foliage turning to a russety brown colour, and 

 falling off long before the usual time. There are several 



