548 EXPERIMENT STATION EECORD. 



of the North Carolina Academy of Science mention was made of the serious 

 outbreali of Rhizoctonia on bucliwheat in the western part of the State. 



Notes on the value of treating" the seeds of winter cereals with corrosive 

 sublimate, L. Hiltnek {Prakt. Bl. Pflanzcnhau v. ScJiut::, n. fser., 9 (1911), No. 

 5, pp. 69-79, fig. 1). — ^After a brief discussion of the value of soaking the seeds 

 of wheat and rye in a corrosive sublimate solution as a means of protection 

 against Fusarium and other fungi, the spores of which cling to the surface of 

 the grains, the author gives reports obtained from many grain growers on the 

 effects of the formalin treatment of the seed and on the germination and vigor 

 of growth. 



It is claimed that no injuries resulted to the grain from the corrosive sub- 

 limate treatment, and that better germination and more vigorous growth were 

 obtained. 



The action of some fung-icides on the g'ermination of certain varieties of 

 wheat and oats, G. D'Ippolito {Staz. Sper. Agr. Ital., ^3 {1910), No. 10, pp. 

 735-757). — The effects on the germinative power and length of germination 

 when the seeds of various varieties of wheat and oats were treated with 

 sulphate of copper and milk of lime are given. 



It was found that a 0.5 per cent solution of copper sulphate lowered more 

 or less the degree of germination and the germinative energy on all the varieties 

 tested except 2 of wheat, while a seed treatment with a 0.25 per cent solution 

 of copper sulphate did not injure the germinative power of the grain, nor did it 

 increase the period of germination. A 5 per cent solution of milk of lime did 

 not injure the germination of the treated grain in any way, but on the contrary 

 was beneficial to it except in the case of 2 varieties of oats. 



A bibliography is appended. 



Bean diseases, S. B. McCready (Ann. Rpt. Ontario Agr. Col. and Expt. Farm, 

 36 (1910), pp. kk-h"^, figs. 2). — The author describes 3 common and serious bean 

 diseases, viz, anthracnose (Colletotrichum Imdemuthianntn) , bacterial blight 

 (Pseudomonas phaseoli), and pod and stem rot (Rhizoctonia), and gives 

 methods for their control. 



Results of a practical attempt to control lettuce sclerotiniose, F. L. Stevens 

 (Abs. in Science, ti. sen, 33 (1911), No. 859, p. 9-^1). — ^At the tenth annual 

 meeting at Raleigh of the North Carolina Academy of Science the author re- 

 ported the results of experiments on the control of lettuce sclerotiniose. 

 From the studies made it was decided that all the fungus structures except 

 the sclerotia are short-lived, and, therefore, that if the formation of new 

 sclerotia could be prevented, diseased beds could be eventually restored to 

 health. 



To test this, several experimental beds were thoroughly infected in 190S, and 

 the sclerotia which formed were allowed to remain in the beds. The following 

 year over 45 per cent of the lettuce died with sclerotiniose. From this time on 

 a course of treatment designed to prevent the formation of sclerotia was 

 followed, with the hope of lessening the disease. The following year only i 

 of 1 per cent of the crop died. A year later (1911) the results were almost 

 the same. 



Tomato blight and rot in Virginia, H. S. Reed {Virginia Sta. Bui. 192, pp. 

 16, figs. 9). — After a general discussion of the characteristics of these 2 diseases 

 and of their serious menace to tomato growing in southern Virginia, the author 

 gives the results of spraying and fertilizer experiments conducted during 1910 

 at Christiansburg and Blacksburg on the control of these disease's. 



The experiments consisted of from 2 to 4 applications of 4 : 5 : 50 Bordeaux 

 mixture, 1 : 33 and 1 : 50 commercial lime sulphur, and of applications to the 

 soil around the plants of sulphur (a handful to each plant), sulphate of 



