14G 
plete to give a second watering in a day or two, 
to destroy any that the Mixture may not have 
fallen upon. It would be a proper time also to 
water them on a fine day, at the fore end of March ; 
or, at any rate, before the trees are in bloom, as at 
that time the fruit is tender, and therefore would 
be injured by the application ; or a winter appli- 
cation would destroy all those which are not too 
much protected in their huts. In this case it 
would be an advantage to add to the Mixture, four 
pints of common fish oil, which would assist it to 
penetrate their cells. 
Red Spider. — As all the species of this fa- 
mily, which appear to annoy vegetation, have so 
much the resemblance of each other, it will be need- 
less saying any thing more respecting the form of 
them than what has already been communicated 
on one of the species infesting the Peach tree, 
Acarus Holoscricius ; for so trifling is the dif- 
ference betwixt those two, that it is quite imper- 
ceptible by the naked eye, and it must be an 
entomologist to distinguish the difference by the 
aid of a microscope. This animal will be found 
wandering, on fine days, over the bush, by the 
time the buds break forth or, I may say, as soon 
as the least verdure appears, they make their at- 
tacks upon the buds, from which they derive their 
support, and sometimes reign to that degree, that 
from 50 to 100 will be found upon an unfolded 
bud, which was the case in 1825 and 1826, so that 
the tree^ assumed a scarlet shade. 
