754 JOUENAL OF THE ROYAL HORTICULTURAL SOCIETY. 



The moths (fig. 318, 3, 3a), which were bred from the Pear and 

 Cherry, are exceptionally fine specimens, and much larger than examples 

 described by Stainton, the largest specimen measuring 10 lines (18 to 

 20 mm.). The basal portion of the fore- wings is of a dark leaden-grey 

 colour, frequently with inconspicuous brownish markings. There is 

 usually a conspicuous black spot in the centre of the wing, at the 

 -extreme edge of the dark portion of the wing, and another variously- 

 shaped black mark beneath it ; these, together with the dark outline, 

 frequently bear a striking resemblance to the profile of a boar's head. 



The apical half of the wings is white, or ochreous-white, with a 

 row of black spots on the front edge (costa), a minute crescent- shaped 

 mark at the tip, and variously disposed, faint, leaden-grey cloudings. 

 There is also, not infrequently, one or more small black dots opposite the 

 large spot which forms the eye in the mask-like markings ; the hind 

 wings are leaden-grey, with the fringe paler. When at rest, this moth 

 bears a striking resemblance to bird-droppings. 



Treatment: — 



Make an application of Paris green at the rate of 3 oz. to 

 20 gallons of water just as the buds are bursting (not after the leaves 

 have expanded), and the second one when the larviP have spun the 

 leaves together, at the rate of 2 oz. to 20 gallons of water. 



Much the same remedies were applied to this pest as to the previous 

 one, and with much the same result, the Paris green obtained from a 

 local chemist also proving useless. 



Besides the foregoing, I have also conducted experiments upon plant- 

 lice infesting fruit-trees and Tomatos in the open air, American blight, 

 and caterpillars affecting herbaceous plants in town gardens. The results 

 so far obtained are either negative or have proved ineffective, and must 

 remain for further investigation. 



