OF INJURIOUS INSECTS. 
8 
have this year favoured me with notes of methods of cultivation found 
successful for prevention of insect injury; and, on my own side, I 
must add that as space does not allow of the notes being in all cases 
inserted at full length, I trust that the form they are given in may 
meet with the approval of those who are good enough to entrust me 
with their observations. With regard to the arrangement I endeavour 
to classify the notes in order, showing (as may appear best in the case 
of each insect observed), the general amount of presence or absence; 
methods of cultivation found serviceable for prevention; chemical or 
other applications found to be useful or clearly proved to be useless on 
careful trial; or where no other arrangement appears more desirable 
the notes of observation are placed in geographical order. 
I have great pleasure in being allowed to mention that many of 
the present contributors, and many others also well qualified to give 
sound practical information on the subject of prevention of injury by 
insect rava ges to our food crops, forestry, and fruit, have kindly 
promised contribution of their notes in the coming season. 
Before proceeding to this year’s observations, I have also to offer 
my acknowledgments to Messrs. Blackie & Son, Glasgow, for the 
reproductions from the beautiful figures given in Curtis’s ‘ Farm 
Insects,’ many of which, by their kind permission, are introduced in 
the present Report; and also to the Editors of the ‘ Gardeners’ 
Chronicle’ for the continued use of the figures, by J. Curtis and Prof. 
Westwood, with which they have hitherto obliged me. 
Plusia Gamma. 
1. Plusia Gamma. Silver Y Moth. 
This Moth, which was the great insect appearance of 1879, has 
been merely noticed in small numbers and in few localities during 
1880. Mr. Edward Parfitt observes that up to the 17tli of September 
not a single specimen had been seen in the neighbourhood of Exeter. 
At New Malden, Surrey, and at Kingsnortli, Kent, it is noticed as 
scarce this season. At Maldon, Essex, Mr. Fitch notes the Moth as 
