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JOUEXAL < :>F THE ROYAL HORTICULTURAL SOCIETY. 
The little bright males are usually very abundant in May and early 
June, but, like other male coccids, are very short-lived. In August the 
females lay their eggs, and later the young larvae may be found swarming 
over the standards, giving them much the appearance of being attacked 
by a host of dull crimson micro-fungi. 
This is probably a European insect, but it occurs in every country 
where the Eose is cultivated, and is often very destructive in sub -tropical 
countries. 
Seeing that it confines itself chiefly to the " standards," the treatment 
for removing the pest is comparatively simple. A weak solution of No. 1 
or the full strength of No. 4 should easily remove the insects. For my 
own part, I prefer to remove the scale with a brush, and afterwards apply 
a little soap and water. The early part of March is perhaps the best 
time to carry out the work. 
Japa^'ese Feuit Scale 
(Diaspis [Aulacaspis] amygdali, Tryon). (Figs. 99, 100.) 
This is the newest of all introduced coccids, and as such was fully 
described in the Gardeners' Chronicle for October 1, 1898. As no 
further information has come to hand concerning the various batches 
of infested Japanese Cherries which were known to be in the hands 
of several horticulturists, it is hoped the advice then offered was 
the means of a speedy extermination of the pest. I have therefore 
nothing further to add to my original remarks ; and, as this paper is 
intended to deal with our injurious coccids in a collective form, I must 
ask your indulgence to be allowed to quote my paper in extenso. It 
may be weU to state at the commencement that this pest is quite distinct 
from the San Jose Scale insect {Aspidiotus perniciosiis, Comstock, fig. 96) 
of the American fruit-growers, which up to the present moment has en- 
gaged the attention of the whole fruit -gi'O wing industry of the world. But 
it belongs to the same destructive family of scale insects (Coccidee), and 
being of Western Asiatic origin, inhabiting a region with a chmate some- 
what resembling our own, gives us far greater cause for alarm than did 
its sub-tropical relative, the San Jose Scale. We therefore beg to lay 
before the British pubhc an account of its introduction into this country, 
together with a description of the insect, of its general distribution in 
other parts of the world, and of its destructive character, in the hopes 
that by such means we may not only assist the fruit-growers in identify- 
ing the insect, but gain by their united efforts in the speedy destruction 
of this newly introduced pest. 
History of Introduction. 
In January of the present year a consignment of several hundred 
Japanese Cherries {Prunus pseudo-cerasus) was imported into this country 
from Japan, which ultimately fell into many hands, and were dissemi- 
nated over the British Isles without any knowledge that they were badly 
infested with scale. In the following April two of the plants from the 
consignment were submitted to the writer for the purpose of identifying 
the insects upon them, which proved to be the destructive scale insect 
