Archive image from page 6 of Diagnosing bee diseases in the. Diagnosing bee diseases in the apiary . diagnosingbeedi392burn Year: 1936 DIAGNOSING BEE DISEASES IN THE APIARY EFFECT UPON THE COLONY The strength of a recently infected colony will not be noticeably affected, and there will be only one or a few dead larvae or pupae in sealed cells with slightly discolored or sunken cappings. The Figure 3.—Symptoms of American foulbrood: A, Normal capping over healthy larva ; B-F, stages in the discoloration and removal of cappings ; G, capping removed to show healthy larva ; H—L, stages in the
Archive image from page 6 of Diagnosing bee diseases in the. Diagnosing bee diseases in the apiary . diagnosingbeedi392burn Year: 1936 DIAGNOSING BEE DISEASES IN THE APIARY EFFECT UPON THE COLONY The strength of a recently infected colony will not be noticeably affected, and there will be only one or a few dead larvae or pupae in sealed cells with slightly discolored or sunken cappings. The Figure 3.—Symptoms of American foulbrood: A, Normal capping over healthy larva ; B-F, stages in the discoloration and removal of cappings ; G, capping removed to show healthy larva ; H—L, stages in the decay and drying of larvae killed by American foul- brood : oral views. disease may not develop to a critical stage and seriously weaken the colony until the following year. At other times, however, the disease may advance more rapidly and seriously weaken or kill the colony the first season. If the disease has been present and active
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Keywords: 1930, 1936, archive, bees_diseases_diagnosis, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, burnside_c_e_carlton_earl_1896_, drawing, historical, history, illustration, image, page, picture, print, reference, sturtevant_arnold_parker_1889_, vintage, washington_d_c_u_s_dept_of_agriculture
