Reports to the Board of A gri culture. 165 
(4) The young osiers may be sprayed with Paris green to kill 
beetles or larvae early in the year. 
(5) In small beds the beetles can be collected early in the year 
by shaking them off the shoots, on to tarred sacks or boards. 
(6) It is said benefit is derived from dragging a rope weighted 
in the middle across osier beds and thus knocking the beetles off. 
It is doubtful if any permanent good could be the result of this 
method. 
(7) The stocks may be dressed with finely-powdered lime and 
soot in the spring. 
The chief things to do are the destruction of winter quarters, 
spraying with Paris green, and jarring the beetles! off into pails or 
on to tarred sacks. 
The following communication was received from the Board’s 
correspondent : — 
“ We are much obliged for your favour of the 23rd inst., enclosing 
copy of memorandum supplied by the Natural History Museum 
regarding the beetles we sent to your Department. We can confirm 
practically everything contained in that memorandum regarding the 
life-history of these pests, and the suggested remedies are in accordance 
with the lines upon which we have been working. We find the 
most expeditious manner is to put boys on to brush each head or 
willow plant separately. The beetles fall off into a tray covered 
with an adhesive substance not quite so thick as tar and are then 
drowned in paraffin and water. We destroyed some millions last 
winter in their winter quarters, and as they have confined themselves 
to two varieties of willows we are hopeful that we have practically 
exterminated them. They attacked us very severely nine or ten 
years ago, but after a couple of seasons disappeared entirely. 
The Pine Sawflies. 
(Lophyrus pini , Linn., and L. rufus, Linn.). 
Some of the following notes have been sent to the Board on the 
Pine Sawfiy, and will appear in leaflet form. Other notes have since 
been added. 
Pine trees of all kinds are frequently seriously damaged by the 
larvrn or grubs of Sawflies throughout Great Britain. The chief 
culprit is the Pine Sawfiy ( Lopliyrus pint), but several other species 
do considerable harm now and again (L. rufus and Nematus abietis). 
