File:Annual report of the Fruit Growers' Association of Ontario, 1905 (1906) (19364194755).jpg

Identifier: annualreportoffr1905frui
Year: 1906 (1900s)
Authors: Fruit Growers' Association of Ontario
Subjects: Fruit Growers' Association of Ontario; Fruit-culture; Fruit-culture
Publisher: Ontario Dept. of Agriculture, (Warcick Bros.
Contributing Library: Brock University
Digitizing Sponsor: Brock University - University of Toronto Libraries

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26 THE REPORT OF THE No. 19 information, about insect pests and methods of combatting them, and at the present time more places are open for the employment of economic en- tomologists in the south than any other section, so far as the writer is aware, while it goes without saying that in regard to life histories, broods, hiberna- tion, etc., much more remains to be discovered there than in the more north- ern states.
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Fig. 11. Papilio thoas, the Giant Swallow-tail Butterfly. Colours black and yellow. In the discussion that followed the reading of this paper, the first insect that was commented upon was Plum Curculio (Co no tracheitis nenuphar). Dr. Fletcher spoke in high terms of appreciation of Prof. Sherman's paper, and congratulated the Society upon the addition to its members of so able and enthusiastic an entomologist. He remarked that the Plum Curculio in Canada was kept in check almost entirely by spraying, and that jarring was rarely resorted to. Mr. George E. Fisher had tried both methods, but preferred spraying, as it proved more effective, and had the additional advantage that a fungicide could be used with the Paris green, and thus a double result was accomp- lished. Mr. Willard, of Geneva, N.T., whom he had visited, depended entirely upon jarring for the protection of his plum trees. He uses the wheel- barrow system, and employs twelve men, each with a barrow, for the pur- pose. As the Curculios are very susceptible to cold, the jarring is done in the early morning when they are sluggish and have a less firm grasp on their resting place. As many as a hundred of the beetles were often shaken from one tree. There was undoubtedly one advantage in jarring,—you killed the beetle for certain, whereas in spraying you only distributed poison for the insect to eat and could not be sure that he would partake of it. Dr. Fletcher said that the cost of the labour required for jarring was very much greater than for spraying. Good paying results were obtained by the use of the latter method, and, as Mr. Fisher had stated, there was the

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