REPORTS BY THE HONORARY SCIENTISTS, 97 
One of the troublesome insects of the year was Retinta buoliana, 
the pine shoot twister. From both Scotland and England com- 
plaints of the damage done by the caterpillars of this little moth 
reached me. The moth lays its eggs in July or in late June, on 
the buds of young pines, the eggs being laid singly. The larve 
overwinter as small caterpillars, and renew their feeding in the 
next spring, tunnelling in the buds and young shoots. Pupation 
is generally in June. The only practicable measure against the 
pest is the timely cutting off and burning of the infested shoots. 
This is a measure worth practising, from the tendency of the 
moth to spread. Mr James M‘Callum, Canford Manor Estate, 
Dorset, who sent me material in the month of June, found that 
with him Scots pine was worst attacked, and then Austrian pine, 
Corsican pine, and Pinus insignis. Mr M‘Callum had also 
Douglas fir infested. This last is an important observation, 
being, as far as I know, the first recorded attack of Retinia 
buoliana on Douglas fir, 
VOL. XX. PART I. G 
