American Bee Journal, Volumes 80-81Dadant & Sons, 1940 - Bee culture Includes summarized reports of many bee-keeper associations. |
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Page 338
... disease , whereas out of 27 colo- nies headed by 14 queens from stock with an unknown history for disease resistance and 13 from F1 queens of stock showing resistance only 12 re- covered or failed to contract the disease . The data show ...
... disease , whereas out of 27 colo- nies headed by 14 queens from stock with an unknown history for disease resistance and 13 from F1 queens of stock showing resistance only 12 re- covered or failed to contract the disease . The data show ...
Page 365
... disease before the end of the 1938 season cleaned out their diseased brood quickly , but only a comparatively small number of cells of diseased brood ever appeared in them . Development of Disease in the Colony The extent of disease ...
... disease before the end of the 1938 season cleaned out their diseased brood quickly , but only a comparatively small number of cells of diseased brood ever appeared in them . Development of Disease in the Colony The extent of disease ...
Page 533
... disease had appeared although the queen had been superseded several times . Number 18 remained free of disease until the season of 1941 although there had been several supersedures . However , when another super- sedure occurred this ...
... disease had appeared although the queen had been superseded several times . Number 18 remained free of disease until the season of 1941 although there had been several supersedures . However , when another super- sedure occurred this ...
Contents
Volume EightyF C Pellett__ | 9 |
Improved StockF B Paddock__ __14 | 15 |
Institute News Notes_ | 26 |
Copyright | |
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