ENTOMOLOGY. 
vapour er moth (Orgyia antiqua ) feed on and disfigure the leaves of 
almost every kind of plant they happen to alight upon. The little 
grey moth, so numerous on hawthorn hedges, also attack apple trees 
in orchards and gardens, devouring the leaves and covering the twigs 
with their webs. The tree lackey-moth (Clysiocampci neustrid) are 
bred on apple-trees, gnawing the young leaves, which serve them for 
food till they assume the chrysalis state. As the caterpillars congregate 
in webs, they are easily caught and destroyed by hand. The insect 
(Lo zotcema rosavia), so destructive to the foliage and flowers of rose- 
trees, are a great plague to florists, as they often totally destroy every 
bud on a favourite tree. These insects (the Lozotcenia rosavia) are 
much more destructive, because more numerous, in some seasons than 
in others, and to one variety of rose more than others, or in one locality 
more than another. In some places, very few of the first rose-buds 
ever come to be perfect flowers, owing to the insect eating its way into 
the very heart of the bud long before it begins to open. In the present 
year these rose-eaters do not appear to be so numerous as usual, as 
there is at present a fine prospect of a plentiful bloom. 
But to revert to the caterpillars above named, and to many others 
which we cannot scientifically designate, and which are equally annoying 
to the gardener; of them we have to notice that many different methods 
have been recommended for driving them from their prey. The most 
ancient, perhaps, is fumigation, by the combustion of half-dried weeds, 
or litter of any kind, burned on the windward side of the orchard or 
garden. This as a preventive may be in some degree effectual, as it 
seems that these tribes of insects have very keen senses of both taste 
and smell, and, therefore, easily annoyed by any noxious vapour, though 
not suffocated. But, in the open air, neither smoke nor vapour of any 
kind can be directly applied nor confined, except on small plants, and, 
therefore, fumigation can only be but partially effectual in banishing or 
destroying insects. The effluvium of soot laid under the trees is found 
to be offensive to all those insects which are on the wing in search of 
sweet or aromatic food; and many offensive decoctions of bitter, or 
otherwise offensive, plants, have been tried as repulsive expedients, with 
more or less or no effect. But in all applications of this kind, the time 
when used is material. If the parent insects can be disgusted, by any di¬ 
lution thrown upon the trees, from choosing these as a cradle or nursery 
for their young, it would be well, because they may be perhaps easier 
kept off than removed after they are seated. Among other things, it 
has been advised to wash gooseberry-trees, soon after they have got 
their leaves, with the water in which potatoes have been boiled, which 
is said to prevent the attack of insects. Some recommend striking 
