76 PLUM. 
‘Removal of all misshapen stems at the first thinning, till which 
time they are spared to cover the ground.” 
Looking at the habit of the moths of flying round the tops of the 
infested trees in the dusk, and also that these trees are often still in 
reach of treatment by means of syringing, or by washes thrown from 
garden-engines, it would appear well worth trying whether the appli- 
cation of some of the various well-known kinds of soft-soap wash 
might not be very deterrent to egg-laying. The application of tobacco- 
liquor failed on trial; but the adhesive slight coating which would 
be given to the buds by the soft-soap mixture would especially lodge 
between them, and thus protect the exact locality which the Tortrix 
Moth selects for egg-laying. For a purpose like this the Kclair 
Knapsack Sprayer, sold by Messrs. Chas. Clark & Co., Windsor 
Chambers, Great St. Helen’s, London, H.C., would be excellently 
adapted, as it could be carried on the shoulders of the bearer amongst 
the young trees, where there would be no room for the passage of a 
wheeled machine. 
PLUM. 
Wrinkled Fruit-tree Beetle.  Scolytus rugulosus, Ratzeburg ; 
S. hemorrhous, Schmidt. 
H.K. 
ScoLyrus RuGuLosus.—Beetle, larva, and pupa; all greatly magnified. The two 
latter from drawings by Mr. R. Newstead. 
The above-named beetle much resembles the well-known Elm-bark 
Beetle, Scolytus destructor, Oliv., in its method of doing harm by 
working in grub state within the inner part of the bark and outer part 
of the wood, but is distinguishable (for one thing) by being a good 
deal smaller; the H]m-bark Beetle being from one and a half to as 
much as three lines in length, and the ‘ Fruit-tree’’ Scolytus (to 
borrow one of its German names) only from three-quarters of a line or 
less to a line and a quarter long. 
