332 



CHAPTER XXXVI. 



On insects and diseases to which fruit trees are incident, with 

 remedies for them, fyc. 



IN treating upon the various insects and 

 diseases with which fruit trees are attacked, 

 I do not consider that it is necessary to enter 

 into a long, or philosophical detail of them, 

 as such descriptions and details have already 

 appeared, and a repetition of them in this 

 work would answer no very valuable end; 

 for the general knowledge of the insect or 

 disease, with the short description which will 

 be hereafter given, and the application of the 

 remedies which will be laid down, will even- 

 tually answer every practical purpose. 



On the Acarus, or Red Spider. 



This insect is so small as to be scarcely 

 discernable without the aid of a microscope, 

 it attacks most kinds of fruit trees, and may 

 generally be discovered at the under side of 

 the leaves. It particularly attacks those 

 trees that are forced, a dry heat being very 

 favourable to it; also in a dry summer trees 

 which are out of doors will frequently be 



