6k 



Bac I LLU s LYMANTR I AE Pi card and Blanc 

 (See Cocco"bacillus lymantriae ) 



Insect concerned: The gypsy moth, Porthetria ( Lymantria ) 

 dispar . 



Picard and Blanc (1913) discovered a fatal septicemia 

 occurring in the larva of the gypsy moth to "be caused "by 

 an organism which they called Coccohacillus lymantria . 

 Paillot (1933)* however, refers to " Bacillus ( Bacteriu m) 

 lymantriae Picard and Blanc. " Apparently the organisms 

 are the same. 



Paillot, A. 1933 L'infections chez les insectes, 525 $P 

 Imprimerie de Trevoux, Paris. (See page 125- ) 



*Picard, F. , and Blanc, G. R. 1913 Les infections a 

 cocco"bacilles chez les insectes. Compt. rend, hehdom. 

 acad. sci. , 157, 79-81. 



Bac 1 llus lymantr t ae b eta Paillot 



Insect concerned: The gypsy moth, Porthetria ( Lymantria ) 

 dispar . 



Paillot (1919) isolated Bacillus lymantriae "beta and 

 Bacillus lymantr i cola adiposus from larvae of Porthetria 

 ( Lymantria ) dispar infected with a septicemia, He states 

 that one is not to confuse Bacillus lymantriae heta with 

 the Bacillus lymantriae (see ahove) of Picard and Blanc, 

 which he says, should "be called Bacillus lymantriae alpha , 

 Paillot pointed out that the cultural characteristics of 

 the two organisms were different. 



* Paillot, A. 1919 La pseudograseerie, maladie nouvelle 

 des chenilles de Lymantria dispar . Compt. rend. acad. 

 sci. , 168, 258-260. 



Bac 1 llus lymantr i cola ad i posus Paillot . 



Insects concerned: The gypsy moth, Porthetria ( Lymantria ) 

 dispar ; Vanessa urticae ; the hrown-tail moth, Euproctis 

 chrysorrhea ; and the silkworm, Sericaria mori . 



Paillot (I9I9) isolated Bacillus lymantr i cola adiposus 

 from the diseased larvae of Porthetria ( Lymantria ) dispar , 

 which presented the external symptoms of grasserie and 



