. Bee diseases in Ontario [microform]. Bees; Abeilles. tbt cell, nan}' of the itifected larva bag in to aMoma unnatural poaitiona in tba etU aa though is pain. S)ee figure 4, d, t, g. i, I, m und f. (3) Tugethfr with thi» unnatural poeition, we And the t-olor of theM larvae changing from a glistening pearly white to a tlightly yellow color, deepening until the dead larvae become n greaey maM in varioui poaition* in the cellfl. (4) Other larvai- in the mdm comb affei'ted with Kuropean foul brood may retain their ipherital or curled thape and position in the haM of the cell, bu
. Bee diseases in Ontario [microform]. Bees; Abeilles. tbt cell, nan}' of the itifected larva bag in to aMoma unnatural poaitiona in tba etU aa though is pain. S)ee figure 4, d, t, g. i, I, m und f. (3) Tugethfr with thi» unnatural poeition, we And the t-olor of theM larvae changing from a glistening pearly white to a tlightly yellow color, deepening until the dead larvae become n greaey maM in varioui poaition* in the cellfl. (4) Other larvai- in the mdm comb affei'ted with Kuropean foul brood may retain their ipherital or curled thape and position in the haM of the cell, but in> ftead of retaining the healthy pearly white lolor, they become « grayiih-yellow cohir, and the tracheae may lie clearly wen. Them; larvae finally turn dark brown. Sw Fig. 4, b, e, and q. ('•) In a few caiet dead larvae may be found after being Healed, hut then' are (juitc rare compared with the numlterii found in the unnealed cell*.. Fio. 4.—European Foul Brood: o. j, k, norr \ aealed cells; 6, c, d. e. p. i. /, m. p. g, larr* aSeoted by disease: /, h, n, o, 4iit>d brown larvK or scales. Three times natural site. ( Dept Ag. Far. Bui. 44S.) (6) Another (K'luliarity of this disease is that drone and queen larvat mm be affected as well as the wor'ier larvae. This in oftentimes an aid in enabling the beekeeper to deterniire '• .' it is European foul brood present, rather than American. (7) If a tooth pick or twig is inserted into one of the dead larvae, which has assumed an unnatural position, it will be found impossible to the ma.«8 whole from the cell. The skin apparently decays shortly after death. This ia also an aid to the beekeep. - in differentiating between European foul brood and Sacbrood. (8) It must be remembered that this test may not be true of those larrae wliich retain their shape and position in the base of the cell, and which. Please note that these images are extracted from scanned page images that may have been digitally
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjectbees, bookyear1920
