. American bee journal. Bee culture; Bees. action. It is, evidently, now due to a specific germ. Bacillus tnilii: the other, perhaps purely accidental at first, on ac- count of its requiring more oxygen, is now found in the thorax among the respiratory organs. While it has not been clearly demonstrated by facts, practically, it appears to be true that perfect bees, especially nurse-bees, are injured by the infection. DIFKKRENTIAI, DIAGNOSIS. Foul brood, pickled brood, and black brood. Foul brood, due to Bacillus alvei—a specific bacterium. Pickled brood, due to Aspergillus pollinis—a specific
. American bee journal. Bee culture; Bees. action. It is, evidently, now due to a specific germ. Bacillus tnilii: the other, perhaps purely accidental at first, on ac- count of its requiring more oxygen, is now found in the thorax among the respiratory organs. While it has not been clearly demonstrated by facts, practically, it appears to be true that perfect bees, especially nurse-bees, are injured by the infection. DIFKKRENTIAI, DIAGNOSIS. Foul brood, pickled brood, and black brood. Foul brood, due to Bacillus alvei—a specific bacterium. Pickled brood, due to Aspergillus pollinis—a specific fungus. Black brood, due to Bacillus milii, modified, perhaps, by Bacillus thoracis, specific bacteria. Black brood may be introduced into a healthy colony thru infected food or infected combs—combs from which the diseased brood has been removed, or in which particles remain. The food for the young larvs, either from its chemical reaction or from its lack of nitrogenous substan- ces, is not a suitable medium for immediate growth of the germs ; but when the chyle-like food is furnisht the older larvae, a*chemical change in the food produces a change in the liquids of the bee, which become a suitable nutrient medium for their rapid development and dissemination. It would appear that, in some cases. Bacillus thoracis was the cause of death, as the spiracles, or openings admitting air to the respiratory apparatus, were closed by the products of decomposition or the result of it. In such cases it is usually. 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 [Hamilton, Ill. , etc. , Dadant & Sons]
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Keywords: ., bo, bookcentury1800, bookdecade1860, booksubjectbees, bookyear1861
