154 
(lescrib6d. The body is of «i buff or flesh coloui, 
produces a cotton-like envelopment, similar to the 
Aphis Lanigera on Apples, and which probably 
might have been mistaken by Salisbury for the 
Eriosorna, or Apple Bug, on the root of the Apple 
Tree, as I am almost persuaded that the Eriosorna, 
or, as it is now called. Aphis Lanigera, never 
feeds upon the roots, or at least after many inves- 
tigations I never found any feeding, or the least 
symptoms of their having there fed. The attacks 
of the Root Aphis are generally from the middle of 
July to the latter end of September. At the last 
period they arrive at their perfect or winged state. 
They prevail principally in diy weather. Tokens 
of the visitations of these depredators are exhibited 
in the languishing or drooping of the foliage, 
occasioned by the loss of the ascending sap, which 
they draw out for their own support. 
For their Destruction. — Previous to 
applying the Mixtui’e, a small or larger basin, oi 
hollow, must be made just round the stem of the 
Bush, in proportion to the size of the tree ; then 
pour into it a moderate quantity, or as much of 
the Mixture (No. 6) as may be supposed to find the 
whole of the roots on which they are feeding. 
The laiTse of the Tenthrido Flava sometimes 
feed upon the foliage, chiefly in the middle of the 
Bush, but on account of the leaves being so large 
they aflbrd more support, and are therefore seldom 
productive of any great injury. 
