50 EXPERIMENT STATION RECORD. 



ties of apples. Based upon the observations of the author and others, it is believed 

 thai tlic pitting is due to unsuitable conditions of soil, moisture, and temperature, 

 either separately or in combination. 



To prevent the occurrence of the disease as much as possible, the author suggests 

 thai susceptible varieties should not be planted, and that planting on damp, rich 

 soil should be avoided, (arc should be taken in pruning, and the use of fertilizers 

 should be given attention, so as to produce the most favorable growth of the trees. 



A fruit disease caused by Fusarium putrefaciens n. sp., A. Osterw alder 

 | ( 'mibl. Bakt. [etc.], 2. AbL, 13 ( 1904), Nos.5-7, pp. 207-213; 9-11, pp. 380-338, ph. 2).— 

 A rot of apples and pears is described which is attributed to attacks of Fusarium 

 putrefaciens n. sp. 



The fungus was isolated, and inoculation experiments showed the readiness with 

 which the disease could be produced on pomaceous fruits. The characteristics of 

 the fungus and its effect on the fruits of the apple and pear are described at length. 

 The author claims that the fungus is identical with that reported by Eustace as 

 Cephalothecium roseum, which causes a rot of apples (E. S. R., 14, p. 1088). He 

 agrees with Eustace and others on the ability of this fungus to cause a rotting of the 

 fruits, in this way refuting the claims of a number of European investigators. The 

 fungus, which is technically described, is believed to be a phase of the species pre- 

 viously noted. 



Notes on canker and gummosis of fruit trees, J. Brzezinski (Centbl. Baki. 

 [etc.], 2. AbL, 12 (1904), No. 19-21, pp. 632-640). — A controversial article, in which 

 the author criticises some of the conclusions of Aderhold regarding the relation 

 between canker and gum flow of fruit trees, which the latter attributes to attacks of 

 Clasterosporium carpophilum (E. S. R., 15, p. 591). 



A new disease of fig's (Jour. Agr. and Indus. So. Aust., 8 [ 1904), No. 5, pp. 266, 

 267). — A brief account is given of a disease of figs which is said to be caused by 

 attacks of Botrytis. So far as observed only the Capri figs are attacked. The young 

 wood will put out new leaves and fruit in the spring, but before they attain any con- 

 siderable size they begin to droop and finally die. The fungus appears to be carried 

 over in the Capri figs, the peduncle or stalk of the fruit being the point of attack. 



Spraying basso far proved of little value in combating the disease, and the removal 

 of the winter figs would involve in one case the loss of the crop and in the other the 

 destruction of the fig insect, which is needed for the fertilization of the fruit. 



Wither-tip and other diseases of citrus fruits, P. H. Rolfs (Bui. Dept. Agr. 

 [Jamaica], 3 ( 7905), No. 2, pp. 25-34). — This is largely a reprint of a bulletin by the 

 author which has been previously noted (E. S. R., 15, p. 974). It is claimed that the 

 wither-tip, caused by CoUetotrichum glaosporioides, has been recently observed as 

 occurring in Jamacia on limes. 



Notes on the Gloeosporium disease of red currants, R. Laubert ( Centbl. Bali, 

 [etc.], 2. AbL, 13 ( 1904), No. 1-3, pp. 82-85, fig. 1).— The author gives an account of 

 the distribution of the Gloeosporium disease of currants in Europe and elsewhere, 

 showing the effecl produced upon the host and giving technical descriptions of the 

 fungus, particular attention being paid to a number of its forms. 



The present aspect of the epidemic of the American gooseberry mildew 

 in Europe, E. S. Salmon (Jour. Roy. Hart. Soc. [London], 29 (1904), No. 1-3, pp. 

 102-110, map 1).— The author describes the distribution of the gooseberry mildew 

 (Sphterotheca morsuvse) in Europe, and states that it occurs in epidemic form in Ire- 

 land and Russia, and has been reported as observed in other localities. 



Notes are given on the efforts which have been made to control the disease in a 

 number of localities, and the author recommends the continued and thorough appli- 

 cation of fungicides, together with the pruning and burning of affected portions of 

 the bushes. 



