. Bulletin of the Department of Agriculture. Agriculture. BEES IN COLONIES AFFECTED BY EUROPEAN FOULBROOD 9 at the time of infection. The first high peak of the disease coming on the nineteenth day was followed by a slight improvement, when for a time the house cleaning exceeded the occurrence of fresh dis- ease. This was probably due to the stimulus of the increasing honey. flow. But as soon as ihe next series of eggs hatched, the disease" again gained the upper hand, reaching another higher peak on the thirty-first day, at which time it was deemed necessary to start treat-' ment. I
. Bulletin of the Department of Agriculture. Agriculture. BEES IN COLONIES AFFECTED BY EUROPEAN FOULBROOD 9 at the time of infection. The first high peak of the disease coming on the nineteenth day was followed by a slight improvement, when for a time the house cleaning exceeded the occurrence of fresh dis- ease. This was probably due to the stimulus of the increasing honey. flow. But as soon as ihe next series of eggs hatched, the disease" again gained the upper hand, reaching another higher peak on the thirty-first day, at which time it was deemed necessary to start treat-' ment. It had become evident that the colony was being overrun by' the disease. More and more dead larva3 were being allowed to re-^ 134440°—Bull. 804—20 2. 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.
Size: 1366px × 1829px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
