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The Relation of Bacillus Alvei to the Confusing Symptoms in European Foulbrood

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Abstract:

In localities where European foulbood is prevalent and under conditions favoring its unchecked development, the disease often shows variations in symptoms, such as death of larvae after being sealed, more or less suggesting in appearance larvae that have died from American foulbood. Bacillus Alvei, a purely secondary decomposing organism, which is always found present in such dead remains generally to the exclusion of most other organisms, is apparently the cause of these variations in symptoms and course of the disease. It has been demonstrated that Bacillus Alvei produces the granular slimy consistency and old rubber-like condition of the dried scales as well as the excessively obnoxious putrid meat odor in such cases. This activity of Bacillus Alvei is commonly encountered in regions of late honey flow, in seasons of failure, or where through indifference or neglect other factors cause weak colonies to be prevalent and the disease has been present for a considerable time. This condition at times even necessitates more drastic treatment than is generally required for ordinary European foulbrood.

Document Type: Research Article

Publication date: April 1, 1925

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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