946 F.XPKHIMKNT STATION RECORD. 



In (oiiiiiiling the information tlio autlior bas searcLcd tlii' literatnre quit*:' ex- 

 l»Misi\ ely, anil a list of more than ITiU titles is given. 



Beport on plant protection {8. Jnlcnial. Lunihr. Koiiff. Wien, 3 (1907), 

 Sect. \ If. A'f'/.s'. /, ])i). 81 ; 2, pp. ,i.i ; 5. pp. 21). — A series of jiapers is given that 

 were presented to tlie International Agricultural Congress at its meeting in 

 Vienna in 1!»UT. The papers discuss tlie means adopUnl for tlie control of plant 

 diseases, insect pests, nematodes, etc., and the organization and results obtained 

 in some of tlie countries re[)resented in the International Union for Plant Pro- 

 tection. Among the i)ai)ers describing the status of the organization and work 

 in different countries are the following : For Sweden, by J. Krilvsson ; Belgium, 

 E. Marchal ; Denmark, F. G. E. Rostrup ; Germany, R. Aderhold ; Holland, J. 

 Kitzema Bos; Italy, B. Moreschi ; Austria, K. Kornauth; Ru.ssia, A. Jaczewski : 

 Switzerland, H. Miiller-Thurgau ; and Hungary, J. Jablonowsky. Summaries 

 are given on the prevention of plant diseases through cultural methods and 

 the utilization of individual and varietal resistance, by P. Sorauer. (J. Pannner, 

 and E. Zederbauer. Reports on nematode control are given by J. Ritzema Bos 

 and J. Spiegler, 



Botanical investigations, F. C. Stewart (Nciv YorJ: Stale Sta. Rpt. 1901, 

 pt. 3, pp. 119-162, pis. //, map /). — A summary is given of the work in the in- 

 vestigation of plant diseases and their treatment that has been carried on dur- 

 ing the 25 years of the existence of the station. An account is in'esented of 

 most of the important diseases of economic plants, together with suggestions 

 for their control. The publications relating to fungicides and insecticides and 

 si)raying machinery, the work on weeds, and some miscellaneous investigations 

 are also brietlj" summarized. 



Diseases of field crops in Delaware in 1907, 11. S. Jackson {Delaware Sta. 

 Bui. S3, pp. 3-25, figs. 12). — A popular account is given of some of the more 

 prevalent field-crop diseases observed during 1907 in Delaware, together with 

 observations as to their prevention. 



Among the diseas(>s described at some length ai'e clover dodder (Cuscnta 

 rpithi/iitmu), anthracnose of red clover {CoUetot rich urn trifoJii). leaf blight of 

 German millet i Piricularia fjriscd), oat smuts (Usiilago areiur and 1\ la'viM), 

 corn smut (U. zca), loose smut of wheat (P. IritUi). powdery mildew of wheat 

 (Erysiphc graminis), and leaf spot of cowpeas (Ccrco.spora crurnta). In addi- 

 tion to the diseases mentioned above, the occurrence of a numlter of other 

 fungi is reported. 



Report of the acting botanist and plant pathologist, I. P.. P. Evans {Trans- 

 vaal Dept. Agr. Ann. Rpt. 11)07, pp. 135-172). — After briefly reporting upon the 

 botanical work carried on during the absence of the botanist, an account is 

 given of the plant diseases which were investigated, the principal ones being 

 the bitter pit affecting apples, rusts of cereals and other economic gi'asses. coffee 

 rust with its allied fungi, and the South African locust fungus. 



In the study of cereal rusts, the author has shown that oats, which seem to 

 be free from rust in India, are readily infested from cultures of Uredo coronifvra 

 and U. graminis. Of the inoculated plants, those receiving spores of V. oro- 

 nifera were much more severely attacked than those to which the other fungus 

 was applied. 



A study was made of the rust occurring on Rhanmus prinoifles to ascertain 

 whether it might not be connected with the crown rust of oats. As a result of 

 inoculation experiments the author found that the jecidiospores did not germi- 

 nate as ordinary jecidiospores but as teleutospores. A further examination of 

 the fungus led the author to the conclusion that it is not Puccinia coronata. but 

 belongs to the genus Endophyllnm, and the name E. macoicanianum n. sp. is 



