7^ 



Bac 1 llu s pecti nophor ae White and No"ble 

 Insect concerned: Pectinophora gossypiella . 



In the summer of 1932 , White and Noble (1936) encountered 

 a septicemia among pink bollworm larvae, which they found 

 to "be caused "by Bacillus pectinophorae . The disease was 

 observed only under laboratory conditions and had not been 

 noted in the field. 



White and Noble state, "Metalnikov and Metalnikov (1932, 

 1933) studying diseases of the pink bollworm, report a 

 mortality of 90-99 per cent from natural infection in the 

 field in 1932 and 1933. It is seen from the description 

 of the microorganisms which they encountered that they 

 were not working with pink bollworm septicemia." Bacillus, 

 as a generic name, is not according to present day nomen- 

 clature inasmuch as the bacterium is a small,, non-spore - 

 forming rod. 



Metalnikov, S. , and Metalnikov, S. S. 1932 Maladies des 

 vers du caton ( Gelechia gossypiella et Prodenia litura ) . 

 Compt. rend. acad. agr. , 18, 203-207- 



Metalnikov, S. , and Metalnikov, S. S. 1933 Utilisation 

 des bacteries dans la eutte contre les insectes nuisibles 

 aux catonniers. Compt. rend. soc. biol. , 113 , 169-172. 



*White, C. F. , and Noble, L. W. 1936 Notes on pink boll- 

 worm septicemia. J. Econ. Entomol. , 2£, 122-12^. 



Bac 1 llus pediculi Arkwright and Bacot 



Insect concerned: Pedi cuius humanus . 



While Arkwright and Bacot (1921) were working on the 

 association of rickettsiae with trench fever, they noted 

 a bacillary infection of the excreta and gut of the human 

 louse. The causative organism, Bacillus pediculi , was 

 found to be a parasite of the copula tory apparatus of P. 

 humanus . 



* Arkwright, J. A. , and Bacot, A. 1921 A bacillary in- 

 fection of the copulatory apparatus of Pedi cuius 

 humanus . Paras itol. , 1^_, 25-26. 



Bac 1 llus pest i s (? ) 

 Insect concerned: La chno sterna ( Phytalis ) smithi. 



