59 
lime to adhere to the leaves, and give them an 
unsightly appearance, Avhereas, if they are not wet, 
most of the lime will fall ; but the exuded matter 
that the insect produces, will retain a sufficiency 
for its destruction. A good washing with deal- 
water from the engine in a day or two after will 
be of service to cleanse the remaining lime off 
the tree. 
Caterpillars. — This tree is liable to the 
attacks of the various Caterpillars which infest 
the Apple Tree. The same steps may be taken 
for their destruction. 
Small Fly. — A remarkable insect, the 
larvae of a very small fly, makes its attacks 
generally in some situations, upon the foliage 
of the tree, about the beginning of July. Its 
head is black, and body the colour of a common 
maggot ; it has ten joints or annular ring’s round 
its body, feeds till the beginning or middle of 
August, when it retires into crevices of walls or 
trees and shreds, where it is transformed into the 
chrysalis state, which is protected or coated over 
with a silken membrane, closely and firmly manu- 
factured, which forms a strong- representation of 
white lettuce seed, both in size, shape, and colour. 
In this state it remains through the winter. 
About the middle of J une the Fly is produced, which 
is black, and so diminutive as to require the 
microscope to distinguish its form. The whole 
insect, wings and body, is not thicker than a very 
small pin. In miniature similar to a winged ant. 
e2 
