k 7 



BAC I LLUS BOMBYC I S Chatton 



Insects concerned: The silkworm, Bombyx mori ; Bothynoderes 

 punctiventris . 



Chatton (1913) originally isolated this "bacillus from 

 diseased silkworms. It produced a daily mortality of from 

 5 to 10 in a generation of 2000 silkworms from septicaemia. 

 Paillot (1933) warns that this organism should not "be con- 

 fused with a spore -forming "bacillus of the same name 

 isolated "by Pasteur. He "believes that the "coccobacillus" 

 isolated from the silkworm "by Chatton should "be given the 

 name Bacterium bombycis and that the name Bacillus bombycis 

 should "be reserved for the spore-forming "bacillus studied 

 "by Pasteur. Paillot (1928) also refers to a Bacillus 

 bombycis of Macchiate as the cause of dysenteriae of silk- 

 worms. 



Pospelov (1913) isolated Bacillus "bombycis from the 

 larvae of Bothynoderes punctiventris , a pest of sugar 

 "beets. The number of larvae suffering from this disease 

 was considerable in the wet summer of 1903 (in Russia). 



*Chatton, E. 1913 Septicemies spontanees a coccobacilles 

 chez le Hanneton et le Yer-a-soie. C. R. Acad. Sci. , 

 156, 1707-1709. 



Paillot, A. 1928 Les maladies du ver a soie Grasserie 

 et dipenteries, 328 pp. Editions du Service Photo- 

 graphique, De l'Universite. , Lyon. (See p. 215). 



Paillot, A. 1933 L' infections chez les insectes, 535 p. 

 Imprimerie de Trevoux, Paris. (See p. 125. ) 



Pospelov, V. P. 1913 Bothynoderes punctiventris , G-erm. 

 and methods of fighting it. An Agr. monograph published 

 by Central Board of Land Administration and Agriculture, 

 Dept. of Agr. , St. Petersburg. 2nd ed. , ll6 pp. 



BAC I LLUS BOMBYC I S ^ NON- L 1 QUEFAC I ENS Paillot. 



Insect concerned: The gypsy moth, Lymantria dispar . 



Paillot (1933) mentions Bacillus bombycis nonlique - 

 faciens and the immunity of the larva of Lymantria dispar 

 to this organism. 



Paillot, A. 1933 L' infection chez les insectes, 535 pp. 

 Imprimerie de Trevoux, Paris. (See pp. 288-289.) 



