164 TREE WOUNDS AND DISEASES 



ing out in June, enter the young fruit, causing 

 them to fall to the ground. 



The apple sucker (Psylla malt) has been 

 very destructive of late years in the orchards 

 of southern England. The insect, by entering 

 a blossom or leaf-bud, arrests its growth and 

 brings about its decay. Spraying the blos- 

 soms with tobacco solution, or the larvae in 

 autumn with paraffin emulsion, has been found 

 beneficial. 



Both the goat moth (Cossus ligniperda) and 

 wood leopard moth (Zeuzera tesculi) damage 

 fruit trees by boring into the stem and branches. 

 In the chapter on " Insect Attacks and their 

 Remedies " the recognition of each, and the 

 best means of dealing with the pests, are fully 

 considered. 



The Lackey Moth (Clissiocampa neustria). 

 The caterpillars of this moth, which is about 

 an inch and a half in length and of a bluish- 

 grey colour, have of late years done much 

 damage by eating the foliage of the apple and 

 cherry. The eggs of the lackey moth are 

 carefully arranged in bands around the smaller 

 branches, and are so conspicuous as to be easily 



