. Annual report. Entomological Society of Ontario; Insect pests; Insects. ENTOMOLOGICAL SOCIETY 43 Table 2.—Relation between varieties and average number OF APHIDS PER SAMPLE Variety- 1933 1934 1935 1936 Surprise Thomas Laxton Laxtonian Blue Bantam Admiral Alaska Laxton Superb Melting Sugar Champion of England Perfection Lincoln Telephone Advancer 172.
. Annual report. Entomological Society of Ontario; Insect pests; Insects. ENTOMOLOGICAL SOCIETY 43 Table 2.—Relation between varieties and average number OF APHIDS PER SAMPLE Variety- 1933 1934 1935 1936 Surprise Thomas Laxton Laxtonian Blue Bantam Admiral Alaska Laxton Superb Melting Sugar Champion of England Perfection Lincoln Telephone Advancer Gladstone Daisy Horsford Horal Canner's Gem Primal Ashford Champion of England (a) Prince of Wales Badger The varieties of peas in general are not infested with aphids to an equal degree throughout the season. This marked difference is not only apparent but it is real in most respects. The varieties Perfection, Daisy, Telephone and Horal, show a decidedly higher degree of infestation than the varieties Surprise, Blue Bantam, Champion of England, Melting Sugar. Fig. 2.—The dashed line on figure 2 represents the average number of aphids found on each of the varieties tested during the years Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
