173 



PSEU DOMONAS FLUORESCENS L 1 QUEFAC I ENS 

 Insect concerned: The honey "bee, Apis me 11 if era . 



White (1906) isolated Pseudomonas fluorescens lique - 

 faciens from the intestine of the normal honey "bee. 



This organism is most likely Pseudomonas fluorescens . 

 (See Bergey Manual, 5th ed. , p. 129 . ) 



"White, G-. F. 1906 The bacteria of the apiary, with 

 special reference to "bee diseases. U. S. Dept. Agri. 

 Bull. No. Ik, Bur. Entomol. , 50 pp. 



Pseu DOMONAS oval I S Chester 



Insect concerned: The Colorado potato "beetle, Leptinotarsa 

 decemlineata . 



Steinhaus (19^0) found this "bacterium in the alimentary 

 canal of the larvae of the Colorado potato "beetle. This 

 organism is frequently, found in the soil and hence may 

 easily "become associated with this insect. A description 

 of Pseudomonas oval is may "be found in Bergey' s Manual 

 (5th ed. , page 133). 



Steinhaus, E. A. I9U1 A study of the "bacteria associated 

 with thirty species of insects. J. Bact. , h2, 757-790. 



Pseudomonas sal i c i perda Lindeijer 

 (See Phytomonas saliciperda . ) 



Pseu domon as sept I ca Bergey et al. 



Insects concerned: Euxoa segetum Schiff . ; the firefly, 

 Photinus pyralis ; and in the potato "beetle, Leptinotarsa 

 decemlineata . 



Stutzer and Wsorow (1927) isolated from Euxoa segetum 

 an organism which they named Bacillus fluorescens septicus . 

 They thought it was one of two agents that caused a "spring 

 disease" among the caterpillars in 1925. Experimentally 

 they were ahle to produce the disease "by infecting the 

 insects through the damaged integument. Thus, it was 

 thought that the infection was "brought about in a similar 

 manner when the caterpillars were in the earth. 



