DIFFERENCES IN THE LIFE HISTORY OF CODLING MOTH, CARPOCAPSA POMONELLA (L.), ATTACKING PEAR AND APPLE

1945 ◽  
Vol 77 (12) ◽  
pp. 231-233 ◽  
Author(s):  
Thomas Armstrong

For several years experiments on codling moth control have been carried on in a large old pear orchard near Beamsville in the Niagara Peninsula, Ontario. This orchard comprises about nine acres of several varieties but predominantly Bartlett, and has been established for about 80 years. It is more or less isolated from other large pear or apple orchards.

1922 ◽  
Vol 14 (1-10) ◽  
pp. 219-289 ◽  
Author(s):  
P. A. Glenn

To secure accurate data in regard to the life history and the seasonal history of the codling-moth in Illinois, and the relation of climatic conditions to the rate of development and the time of appearance of the various stages of the insect, an investigation was begun in the spring of 1915 under the direction of Doctor S. A. Forbes, then State Entomologist.


1896 ◽  
Vol 28 (5) ◽  
pp. 128-130
Author(s):  
James Fletcher

In 1889 I received from the late William Brown, of Charlottetown, P. E. I., some larvæ of a small case-bearer, which he had found in large numbers upon his plum trees, and which also occurred in his pear and apple orchards. Since that time this insect has made itself well-known by its injuries in apple orchards in various localities in the Maritime Provinces, and in the Provinces of Quebec and Ontario. A beautifully illustrated and carefully prepared bulletin has been issued by Mr. M. V. Slingerland, of Cornell University Agricultural Experiment Station, in which the life history of this most interesting but very serious enemy of the fruit grower is fully described. The above illustration, kindly lent by the editor of the Canadian Horticulturist, is copied from that bulletin.


2007 ◽  
Vol 4 (2) ◽  
pp. 160-162 ◽  
Author(s):  
Andrew G.S. Cuthbertso ◽  
Archie K. Murchie

1957 ◽  
Vol 89 (7) ◽  
pp. 328-333 ◽  
Author(s):  
Benoit Parent ◽  
A. A. Beaulieu

Since 1945, the European red mite, Metatetranychus ulmi (Koch) [=Paratetranychus pilosus (C. & F.)], has been one of the major pests in apple orchards in southwestern Quebec. Though it had been noted by Petch on fruit trees at Ville LaSalle, Que., in 1930 and at Lac Mégantic, Que., in 1931 it was not reported as causing serious injury to apple trees before July of 1945, when Beaulieu (1948) reported that it was responsible for the first important damage in a few orchards at Rougemont, Que. By 1946, infestations were general in the apple growing areas of southwestern Quebec and occurred as far east as the Quebec City district.


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