238 Annual lieport for 1907 of the Zoologist. 
suitable receptacles at night. The oi)eration must be rapid, 
for many let go and fall to the ground very soon after the 
light is flashed upon them. This plan, repeated a few times, 
was entirely successful in clearing the Michaelmas daisies, and 
is certainly the best where practicable, but it might be well to 
supplement it in the case of infested tree plantations by suit- 
able dressings. Kainit would probably be useful, as it would 
benefit the trees, while the salt it contains would be obnoxious 
to the weevil. 
It is 0. sulcatus which does most injury to vines, biting 
through the leaf stalks and littering the floor of the vinery 
with leaves. Here again the pest is seldom seen unless sought 
for at night, when it can be found at work and shaken down. 
Precautions must further be taken to prevent the ascent of 
the weevils, which cannot fly but have to crawl up the stems 
or the walls to reach the leaves. It is generally possible to 
stop them effectively by banding the trunks and strewing 
ashes soaked in paraffin along the foot of the wall. 
Pine Shoot Toktrix {Retinia huoliana). 
This is a another plantation pest of special interest to 
nursery gardeners, as it prefers young trees of Scotch pine, and 
more than one complaint of its ravages was received during 
the past year. The injured shoots have a characteristic brush- 
like appearance, and if opened at any time during the winter 
months a brown caterpillar is found within. The very prettily 
variegated moth, reddish-yellow in colour with silver streaks, 
and about an inch across the extended wings, comes out in 
June, and it is important that they should be picked off and 
burnt before the end of May, otherwise the disease is sure 
to spread. There is no way of saving them, for the caterpillar 
is too securely hidden to be reached by any wash, and the sole 
object of the gardener is to prevent the moth from emerging 
and laying eggs on new shoots. 
Celery Fly (Tephritis onopordinis). 
This is a dry- weather pest, and as the fly normally appears 
in May, it seemed hardly likely that it would be particularly 
ti’oublesome during the past year. Nevertheless some celery 
beds developed the disease severely during the warm weather 
of the late summer and autumn. There is no need to re- 
describe so familiar a pest, but it may be mentioned that the 
fly lays its eggs on the leaves of celery and parsnips, and that 
the grubs which hatch out “ mine ” the leaves, causing them 
to be blistered with brown patches. 
On the small scale pinching the blistered leaves with the 
gloved hand is recommended, but it is much quickex’ — and 
scarcely more injurious to the plant — to remove them altogether 
