Entomogenous Fungi. 447 



Mr. Walsh* earlj suggested tlie use of entomogeuous fungi as 

 iusectides. Since that time there have been many experiments, 

 some of which seem to show the subject to be of considerable 

 economic importance. Among those who have done the most 

 toward testing the value of fungi as insectides, are Professor Giard, 

 in France, who has carried on many experiments with Isaria densa^ 

 and several other species. From the reports of Chancellor Snow, 

 it would seem that Sporotrichum glohuUferum might be used 

 effectively against tlie chinch-bug. Professor S. A. Forbes has 

 worked on many forms in Illinois, but has paid especial attention to 

 Sporotrichum glohuliferum and the chinch bug. Professor Poland 

 Thaxter has carried on careful experiments with the Entomoph- 

 thoreae although usually obtaining negative results. M. J. Perraud 

 and M. Paul Soraur as well as Dr. Dufour and M. Le Coeur have 

 experimented with Isaria densa but they have usually obtained 

 negative results. 



BIBLIOGRAPHY. 



Atkinson, G. F. Artificial Cultures of an Entomogenous Fungus. 

 Bot. Gaz., Yob XIX., pp. 129-145, 3 pi, 1894. 



Brougnaiet, M. C. Note on LachnidiuTin acridiorum Giard. 

 Annals, Soc. Ent. de Fr., Seance du 24, fevrier, 1892. 



Brunee, L. and Barber, H. G. Chinch-bugs. Bull. Ag. Sta. 

 Univ. Neb., Article YIIL, pp. 143-161. 



BuRRiLL, T. J. White-grub in Illinois. Cultivator and Country 

 Gentleman, 27 Aug., 1874, Yol. 39. 



Cist, Jacob. Notice of the JVIelontlia or May-bug. Amer. Jour. 

 Sci. and Arts. Aug., 1824, pp. 269-271, pi. 4. 



• Cooke, M. C. The Pyrenomycetous Fungi of the U. S. Bull. 

 Buff. Soc. Nat. Sci., 1877, Yol. 3, Feb., pp. 189-192. Jul. pp. 

 193-202. 



Dufour, Jean. Einige Yersuche mit Botryiis tenella zur Bek- 

 ampfung der Maikaferlarven Zeitschrift fiii* Pflanzenkrankheiten. 

 Yol. II., p. 2, 1892. 



Dufour, Jean. Nochmals iiber Botrytis tenella, zeit. fiir 

 Pflanzenkrankheiten. Yol. 3., pp. 143, 1893. 



Farlowe, W. G, Description of Botrytis riltyi. Kept. U. S. 

 Dept. Ag., 1883, p. 121. 



*■ Practical Entomologist, Vol.2, p. 116. 



