. Les maladies des abeilles. Les larves d'abeilles. ing morts de la loque américaine sont d'abord un li&ht brun-jaune comme ils s'installent dans la cellule, la couleur passe graduellement à un noir, marron café, qui est de teinte uniforme sur tout le corps surtace. Avvearance des chrysalides. Chrysalides morts de la maladie sur le même processus de décomposition et de règlement et les changements de couleur similaire comme les larves. La languette de la nymphe est presque toujours étendue vers le haut de la cellule. Il s'agit d'un signe défini de loque américaine. Ropiness de loque américaine. La Loque américaine détruit les larves ou les nymphes t

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. Diseases of bees. Bees. ing larvae dead of American Foulbrood are first a li&ht yellow brown As they settle down in the cell the colour changes gradually to a dark, coffee brown, which is of uniform shade over the entire body surtace. Avvearance of affected pupae. Pupae dead of the disease go through the same process of decay and settling and similar colour changes as the larvae. The tongue of the pupa is nearly always extended towards the top wall of the cell. This is a definite sign of American Foulbrood. Ropiness of American Foulbrood. American Foulbrood destroys the larval or pupal tissue. The body wall soon becomes soft and easily rup- tured. Dead brood passes through several stages of decay, each stage varying in colour, shape and consistency. After about three weeks of decay, until the scale is formed, a characteristic ropiness is exhibited. During this period a toothpick inserted into the mass will draw out a fine gluey thread of decaying matter. (Fig. 2.). The ropiness of American Foulbrood (U.S. Dept. Ag., Far. Bui. 442) Although this ropiness is a definite characteristic of American Foul- brood, it should be remembered that it only occurs at a certain stage of putrefaction. When a suspicious cell is found during inspection, all other symptoms should be carefully observed before inserting a toothpick and destroying the larva or pupa for further inspection. Too many beekeepers have the habit of inserting a toothpick immediately they see a suspicious cell. This destroys other important symptoms. American Foulbrood odour. In the early stages of American Foul- brood no odour is evident. In advanced stages, however, where much brood is dying and the disease has been present for weeks, the odour is quite distinct. The smell is characteristic, but is probably best described as resembling that of heated glue. The value of odour is overlooked by many experienced beekeepers. Even when a small amount of infection is observed a diseased larva may be removed on a

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