. British bee journal & bee-keepers adviser. Bees. Sept. 29, 1921. THE BRITISH BEE JOURNAL. 457. Treating Foul Brood, i [10528] It is seldom that we ask for space in your Journal outside the adveitasement columns, which we endeavour to make as in- teresting to your readers as the editorial matter itself, but the point raised by Mr. J. Gibson (10,523) in your last week's issue is of scientific importance to all bee-keepers. Your correspondent had sprayed the foul brood at " intervals of three ; and found the disease still present. Notwithstand- ing this, we note with satisfa
. British bee journal & bee-keepers adviser. Bees. Sept. 29, 1921. THE BRITISH BEE JOURNAL. 457. Treating Foul Brood, i [10528] It is seldom that we ask for space in your Journal outside the adveitasement columns, which we endeavour to make as in- teresting to your readers as the editorial matter itself, but the point raised by Mr. J. Gibson (10,523) in your last week's issue is of scientific importance to all bee-keepers. Your correspondent had sprayed the foul brood at " intervals of three ; and found the disease still present. Notwithstand- ing this, we note with satisfaction that the bees are now covering eight combs, instead of three last June, so that the disease must have been very- largely overcome. From the purely scientific aspect, with such long intervals of three weeks, the efficiency of Bacterol must be regarded as remarkable. Foul brood is caused by a spooning micro- organism, which is very difficult to kill by disinfectants, because they cannot be used with sufficient strength to kill the spores with- out killing the grubs and bees. These or- ganisms multiply very rapidly—many genera- tions in twenty-four hours, and, consequently, if the spraying does not reach every spot in the cells, the organisms not killed by the Bacterol solution will continue to increase, and in the course of three weeks would reach big figures. That is why we have always re- commended spraying a 5 per cent, solution of '' General Bacterol " (4 * tablespoonf uls to 1 quart of water) daily for three days. This is quite harmless to the brood, but absolutely fatal to the most resistant sporing organisms. —Bacterol, Ltd., Brookside Road, Highgate, September 26, 1921. [The above letter shows the soundness of the advice we have consistently given, that in Itreating any disease one must have the reme- dial agent continually present to keep the micro-organisms in check, and eventually kill them all. There are bacteria that will mul- tiply at the rate of thir
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