104 



Onion Fly (Anthomyia ceparum) — The remedies offered for this well-known 

 pest are careful preparation of ground which has not borne onions the previous 

 year, growing them in trenches so that the bulb may be kept covered, the re- 

 moval of diseased bulbs, and the treatment of infested plants with what is 

 practically a kerosene emulsion or simply with soap suds. 



Slugs. — These troublesome mollusks are not insects but are treated in the 

 manual because so frequently sent in by people who suppose they are. Gas-lime, 

 lime, and salt if applied frequently at short intervals are sure remedies. 



The Diamond-back Moth {Plutella cruciferarum). — This insect frequently 

 so injurious to cabbages in this country is spoken of as an occasional pest of 

 turnips. A dry dressing of gas-lime, one bushel ; lime from the kiln, one bushel ; 

 sulphur, 6 pounds ; and soot, 10 lbs., was found useful. 



In Part II. " Forest Trees and the Insects that injure them," theie are no 

 insects which actually injure our forest trees in Canada although the general 

 principles of prevention and remedy give valuable suggestions. 



In Part III. " Fruit Crops and Insects that injure them," we find many too 

 well known enemies of the orchardist. 



The Woolly Aphis (Schizoneura lanigera). — Of the many remedies given 

 it seems to us that the treatment of the stem inhabiting form with soap-washes j 

 or kerosene emulsion will be the most effective, and the latter is probably the l| 

 best remedy for the root inhabiting form which is so difficult to reach. 



Apple Aphis (Aphis moli). — Syringing with soft-soap and other washes is 

 recommended. 



Codling Moth (Carpocapsa pomonella). — Scraping, banding, and washing 

 the trees, form the chief remedies. Spraying with Paris green. This is the first 

 mention of this now universally used American remedy. Up to last year Paris 

 green as an insecticide was unknown in England. Now however at Miss 

 Ormerod's suggestion it has been tried and has proved so successful that ' there is 

 no doubt that it will rise rapidly in public favour. Probably some from careless- 

 ness or recklessness, in not following the instructions closely, will put on the 

 washes too strong and injure the foliage ; but the benefits which will follow its 

 adoption will be so enormous that Miss Ormerod will speedily be recognised as a 

 public benefactor by thousands of the ignorant educated people in Great Britain 

 who " did not know that grubs and creeping things were of any interest to them." 



Mussel Scale (Mytilasj^is pomorum). — This is our familiar oyster-shell 

 bark louse. The usual soap washes in spring and the mechanical removal of the 

 scales are recommended. 



Gooseberry Saw-fly {Xematiis rihesii, Curtis). — Great stress is laid on the 

 value of removing the surface soil from beneath bushes which have been infested 

 by the larvae. Mention is made of some mixtures containing soot or sulphur. 

 We are surprised to and that " white hellebore " is not mentioned. 



Shot Borer " Pear Blight " {Xyleborus dispar). — A most complete article 

 is given on this insect which has been very injurious in our Maritime Provinces 

 for some years ; preventive remedies in the shape of washes to prevent the females 

 from laying eggs are given. 



Mottled Umber Moth (hyhernia defoliaria). — This moth is interesting to 

 us from the fact that it has been taken on three occasions in Vancouver Island 

 by Rev. George W. Taylor — whether indigenous or introduced is uncertain. 



This is one of several moths which have been very injurious for many years 

 in England but which have been successfully treated during the past season with 

 Paris green. A long article detailing the experiments of the Evesham Fruit 

 Conference with Paris green, under Miss Ormerod's guidance, gives an account of 

 the successful introduction of Paris green into England as an insecticide. J. r. 



