94 
therefore be longer in coming into that dilapi- 
dated state which the former assume ; and it 
may be further added, as a greater proof of a mis- 
conception, that, as the trees are first populated 
by only a few progenitors, they do not become 
generally attacked, and those parts where the 
parent happens to establish her progeny, (though 
equally healthy as any other part) soon become 
numerously infested so as to completely stop their 
growth, which, I need not add, produces debility or 
weakness. In the mean time, those that happen 
to escape remain healthy till they become possessed 
by some succeeding generation. If my readers 
would investigate for self-information in this mat- 
ter, they would find more satisfactory proofs than 
what I can here advance. 
For their Destruction. — The following 
practice may be adopted : From the middle to 
the latter end of September all the ripe leaves, 
or as many as can be pulled off readily, may be 
taken off ami burned, then the whole tree may 
have a good washing with the Mixture (No. 3) 
letting a man or boy at the same time be using 
the wisk, always forcing it upwards to assist the 
Mixture to wet every part of the tree properly. 
Also a spring watering with Mixture (No. 1) 
must be attended to twice by the time the blossom 
begins to appear or bui’st its outer envelopments, 
and as it is probable the trees may be infested 
later on in the season from some distant travellers, 
or from some of the siu'viviiig ones, which 
