56 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 
About the end of June the weevils begin to desert their 
feeding-grounds in search of a suitable breeding-place.1 I may 
mention that during the season in which I was engaged in 
trapping the weevils I had to strip the bark off some large 
Scots pine trees, for the purpose of destroying the larve of the 
pine beetle, and when the trees were turned over I invariably 
found a number of weevils adhering to the bark. Possibly these 
weevils were on the lookout for a breeding-place, and it is also 
quite possible that they had migrated from the plantations where 
the traps were in operation, although they were about a mile 
distant. Below are given the numbers of weevils which I 
secured in this way in three days :— 
June 28th, ‘ : : : 96 
53. 29th, : : . | apenas 
ig GOt, ; é : ; 46 
Total, : Bae 
This method of trapping is a very good one, and it is not 
attended with much expense. The material for the traps can be 
obtained at the estate saw-mill, and the cost of conveyance will, 
as a rule, be small. A man or lad, who knows exactly the 
location of every trap, should be told off to collect the weevils 
every morning, and as this can be done by one of the forester’s 
staff, the expense need not be great. 
I may also mention that in conjunction with this trapping of 
the weevils there was carried out, the same season, a rigorous 
destruction of their larva. In searching for these, the stumps 
of the trees should be well stripped, as the grubs are often 
found an inch or two below the surface. This operation 
can be accomplished in the usual routine of the forestry 
work, 
The treatment applied to the two plantations referred to 
1 It has been proved in connection with Ay/odéus abziet’s that there is no 
definite limited breeding period, but that the eggs are laid all summer, and that 
the adult beetles don’t die after egg-laying, but hibernate and renew their 
egg-laying in the next summer.—R. S. M. 
