354 EXPERIMENT STATION EECORD. 



or 4, never on a hillside and always on yellowish clay land. The fungus pro- 

 duces two kinds of spores; one suited to very rapid propagation but short 

 lived, the other capable of surviving for months and infecting distant trees. 

 Cool weather with accompanying rain, fog, and dew favor Infection ; hence 

 outbreaks occur usually and most freely after such seasons. 



The treatment recommended is early destruction of all diseased buds and 

 prompt application of fungicides to points of new infection. 



A disease of Anthemis, H. Blin (Rev. Hort. [Paris'^, 83 {1911), No. 16, pp. 

 382-884)- — A disease of Anthemis is reported in France which is said to cause 

 considerable losses to the growers in certain regions. 



The foliage first turned yellow, then black ; finally the stem was affected and 

 the plant withered and died. The roots were found to be more or less covered 

 with nodules ranging in size from that of a pea to that of a plum, and con- 

 taining 2 nematodes, Heterodera schachtii and H. raMcicola. The dead and 

 dying leaves were covered with a fungus, said to be Alternaria tenuis, which, 

 however, is thought to be a weak saphrophyte. 



The precise nature and cause of the disease are not yet definitely determined. 

 As treatments, disinfection of the soil with carbon bisulphid, also resting the 

 soil, considerable spacing between the plants, etc., are recommended for the 

 eelworms. For the fungus, Bordeaux mixture applied to the aerial portions 

 is suggested. 



A new Marssonina on dill, D. Hegyi (Kis&rlet. Kozlem., 1^ {1911), No. If, 

 pp. 595, 59G). — The author describes a disease studied by him on stems, leaves, 

 and flowers of Anethiim graveolens. He considers it a new species and de- 

 scribes it under the name M. kirchneri. 



Sweet pea diseases {Gard. Chron., 3. sen, 51 {1912), Nos. 1308, p. 36; 1309, 

 pp. 52, 53; 1311, pp. 8 J, 85). — The author discusses the disease of sweet peas 

 known as the " streak " disease, due to attacks of Macrosporium solani. It is 

 believed that the fungus is carried by seed and that the heavy application of 

 fertilizers used to force sweet peas tends to cause the plants to be more sus- 

 ceptible to attacks of the fungus. The reduction of the large amount of nitrog- 

 enous fertilizers, better attention to the preparation of the soil, and the use of 

 sound seed are recommended as means for the pi-evention of the trouble. 

 Spraying may be resorted to in severe cases, but the foliage sheds the fungicide 

 badly. Treating seed with a potassium permanganate solution is also advised. 



The war on the chestnut blight, S. B. Detwilee {Country Gent., 77 {1912), 

 No. 13, pp. 8, 27, fig. 1). — A resume is given of the papers and discussions at 

 the interstate conference held at Harrisburg, Ta., in February to consider the 

 best methods of dealing with the chestnut bark disease. Delegates were in at- 

 tendance from Maine, Massachusetts, Connecticut, Rhode Island, New York, 

 New Jersey, Pennsylvania, Delaware, INIaryland, Virginia, West Virginia, Ohio, 

 Tennessee, North Carolina, and the Dominion of Canada. Resolutions were 

 adopted recommending prompt and vigorous methods for locating and stamping 

 out the disease in each State so far as practicable. It was also recommended 

 that a quarantine be maintained and that the utilization of diseased chestnut 

 timber be stimulated. 



Protection of woods by solutions from injurious fungi, and studies on 

 forms of Ceratostomella and Graphium, Caroline Rumbold {Natunv. Ztsclir. 

 Forst u. Landiv., 9 {1911), No. 10, pp. 429-^67, pis. 3; abs. in Mycol. Centbl., 

 1 {1912), No. 3-4, pp. 115, 116). — In continuance of previous work with wood- 

 injuring fungi (E. S. R., 25, p. 755), the author gives tabulated results of tests 

 of several solutions found to be protective at different strengths. Descriptions 

 are given also of Ceratostomella and Graphium as affected by different life 

 conditions. Great variations are said to be observable and are pointed to as 



