. Description and itinerary of agricultural special train. Twofold value of the honeybee. Do bees injure fruit? Combining beekeeping and farming. Report of State inspector of apiaries. Brood diseases of bees. Some nectar and pollen-bearing plants of Tennessee. Crop report for June. Bees. TENNESSEE AGRICULTURE 277 BROOD DISl^AS^S OF BB]eS. By Dr. J. S. Ward, State Inspectors of Apiaries. There are three known diseases of the brood, two of them very contagious, namely, "American Foul Brood" and "European Foul Brood," while the third, called "pickled brood," or "
. Description and itinerary of agricultural special train. Twofold value of the honeybee. Do bees injure fruit? Combining beekeeping and farming. Report of State inspector of apiaries. Brood diseases of bees. Some nectar and pollen-bearing plants of Tennessee. Crop report for June. Bees. TENNESSEE AGRICULTURE 277 BROOD DISl^AS^S OF BB]eS. By Dr. J. S. Ward, State Inspectors of Apiaries. There are three known diseases of the brood, two of them very contagious, namely, "American Foul Brood" and "European Foul Brood," while the third, called "pickled brood," or "Sacbrood," is an infectious disease, and if allowed to go without attention sometimes causes serious losses. AMERICAN FOUL BROOD. American Foul Brood is a disease caused by bacteria known to Scientists as Bacillus Larvae. It reaches the healthy young larvae by means of infected food fed to them by the nurse bees. In most cases the larva dies zvhen nearly ready to seal itp, and most of the cells con- taining infected larvae are capped. The dead larva softens, settles to the lower side of the cell in a shapeless mass, at first white or yel- lozv, changing to coffee-color and brown. At this 'stage it becomes. Fig. 3.—The ropiness of American foul brood. (Orig-idal.) glutinous, so that if it is picked with a toothpick the contents will rope out half an inch or so when the pick is slowly withdrawn. It adheres to the cell so it cannot be hfted out entire. It has the odor of a poor quality of glue. When the larva dries it forms a tightly adhesive scale, of very dark brown color, which cannot be removed without tearing the cell wall. "Pupae also may die of this disease, in which case they, too, dry down (fig. 2, 0, d), become ropy, and have the characteristic odor and color. The tongue frequently adheres to the upper side wall, and often remains there even after the pupa has dried down to a scale. Younger unsealed larvae are sometimes affected. Usually the disease attacks
Size: 2560px × 976px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherna, booksubjectbees
