5. The Woolly Aphis. This insect, (Aphis 

 langinera,) called erroneously in Europe the 

 American Blight, has as yet rarely made its 

 appearance in this country. In France and 

 Germany, and in other parts of Europe, it is 

 the pest of the orchard. 



The appearance of this insect is like a 

 small quantity of down or white frost, in the 

 forks and crevices of the twigs and branches. 

 This, examined with a glass, proves to be 

 composed of an immense number of woolly 

 lice. If not destroyed, they will increase very 

 rapidly. Fortunately the remedy is an easy 

 one. London says it is only necessary to 

 wash the affected parts, with diluted sulphuric 

 acid one ounce by measure of the sulphuric 

 acid of the shops, mixed with ten ounces of 

 water. This liquid should be applied, by 

 means of a piece of sponge or rag tied to a 

 stick, the operator taking especial care not to 

 get it upon his hands or clothes. One appli- 

 cation of it, assisted by the disseminating 

 powers of the next succeeding rain, will effect- 

 ually destroy these insects. 



We noticed a slight appearance of the 

 woolly aphis in the nursery last summer. 



