ENTOMOLOGICAL SOCIETY OF ONTARIO. 



Soc. of Ont. , p. 90) for the destruction of the eggs. We should have to take an 

 unusually mild time for such a purpose in this country ! I dare say, however, that a 

 spraying early in November, or early in the spring would be beneficial. Kerosene emul- 

 sion, made by violently agitating a mixture of two gallons of kerosene and one gallon of 

 hot soap solution is prescribed as the remedy for use. It should be diluted with nine 

 gallons of water (Lintner's 5th Rep., p. 161). 



Late in the fall, or on favourable days in winter, the fruit grower can do good work 

 by examining his trees and removing the egg masses of various species of injurious insects. 

 A trained eye can readily detect the eggs of Qlisiocampa Americana, Harris, Fig. 4L 



Orgyia nova, Fitch, 0. leucostigma, A. & S., and the cocoons of Platysamia Cecropia, 



Linn., Telea Polyphemus, Linn., Gallosamia Promethea, Drury, Fig. 42. etc. But 



in removing such as these he should be careful not to 



destroy the clustered cocoons of microgasters, nor the 



downy masses of those of Apanteles longicornis, Prov. — 



a species that is parasitic in the Tent caterpillars — for 



these insects are among his most valuable friends. 



The destruction of every hibernated Potato Beetle 



in the early spring is the destruction of an incipient 



host. The potato plants should be sprinkled with Paris 



green as soon as they appear above ground. 



A friend of mine when the beetles first invaded the 

 s ' ' province, and before it was quite known how they 

 should be dealt with, broke up a piece of laud in the very 

 centre of his extensive farm, and planted it with potatoes, 

 hoping that its isolation would secure him a good crop. One 

 early day he went to the enclosure to see if the potato plants 

 were shewing themselves. They were not ; but to his disgust 

 there was, to use his own words, " a durned potato-bug sitting 

 on the fence, and awaiting for them to appear." Hi3 action 

 in regard to that individual was both prompt and effective ! 



Gooseberry and currant bushes should be gone over with 

 white hellebore as soon as the leaf-buds begin to open. 



The eggs of many of our hurtful species are laid in patches, 

 as for instance those of Datana ministra, Drury, which produce 

 the yellow- necked apple tree caterpillars, and those of (Edemasia concinna, A. & S., 

 which produce the Red-humped apple tree caterpillars, Fig. 43. The young broods of 

 these may be found in July, each brood feeding on the under side of a leaf. The pluck- 

 ing and destroying of a leaf and its burden is easily accomplished. 



The Round headed Borer of the apple tree (Saperda Candida, Fab.), Fig. 44, is a 



Fig. 43. 



Fig. 44. 



troublesome pest. Its native food plants are the thorn, the moosemissa and the shad- 

 bush, but it takes far too readily to the apple tree. The perfect beetle appears in June, 



