looked over, to see if there be any need of the 
application being repeated. A very proper time 
also for the destruction of these insects is, from the 
beginning to the middle of October, when they 
will be found on the underside of the leaves, pre- 
paratory to depositing their eggs. Forsyth, and 
others who have copied his dii’ections, recommend 
lime, for the destruction of the green Fly, to be 
dashed over the tree, or lime water forced upon it 
by the engine, (see his Directions quoted on 
Plumbs) both of which appear to be of no use. 
The former also gives the tree a disagreeable ap- 
pearance, on which account it should be omitted, 
especially when the leaves are expanded. Mr. 
Harrison recommends an ancient practice, per- 
fonned by many old gardeners with good success, 
but the operation is tedious, viz. that of snuff being 
dusted on the infested paifs, also the trees being 
fumigated. Mr. Beattie recommends lime-water, 
the same as Mr. Forsyth, with an addition of 
half-a-spoonful of soda, namely — “ One peck of 
unslacked lime, to be put into a hogshead of wa- 
ter ; let it stand twenty-four hours, then draw it 
off, and add half a pound of soda to the hogshead 
of water. Twice or thrice will destroy the ver- 
min.” 
Aphis Lanegera, another species of this 
tribe. Aphis Lanegera, commonly called the 
American Bug or Blight, is one of the greatest 
pests the apple tree is subject to : it is much about 
the same size of the one described above, and of a 
