JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



With regard to the occurrence of the disease on the Continent I have 

 obtained the following information. 



I have already given (Bibliogr. 3) the general particulars attending the 

 outbreak of the disease in 1901 in some private gardens at Michailowskoje, 

 near Podolsk, in the government of Moscow. In 1902 the disease re- 

 appeared with increased severity in these gardens, and was reported also 

 by Prof. Bucholtz from Port Kunda, in Esthonia. 



In answer to my enquiries, Prof. Bucholtz has now kindly supplied 

 me with the following additional information. Prof. Bucholtz writes : 

 " Although I am not able at present to give you precise answers to your 

 questions— in consequence of the gardeners here having as yet paid but 

 little attention to this new disease — I can send you the following 

 information. The disease has been noticed here in Riga on almost all the 

 varieties of gooseberries, viz. on smooth, hairy, yellow, and green-berried 

 varieties. The first severe outbreak occurred last year [1902], but the 

 gardeners think that the disease was perhaps present, although not 

 reported, in 1901. With regard to the question of the disease having 

 been imported from America, 1 have not been able to obtain here any 

 information. The Gooseberries which have become affected have been 

 planted for about ten years in Riga. The gardening establishments here 

 do not obtain Gooseberries direct from America, but, if at all, indirectly 

 through Germany and other countries of Western Europe. In the 

 Custom House returns the kinds of bushes are not specified, so that all 

 imported plants are entered simply as bushes, trees, &c. Mr. E. Hoff, 

 the director of the largest gardening establishment and nurseries in 

 Riga, has told me that he has heard of the disease from other govern- 

 ments (Pinsk, Novgorod, &c.). I send you examples of the fungus from 

 Riga, Port Kunda, and Michailowskoje." 



In some specimens sent by Prof. Bucholtz, labelled " Port Kunda, 

 Esthland. Summer, 1902," the young berries were completely invested 

 with the brown densely felted mycelium of the fungus, and had thus been 

 prevented from developing further. Portions of young shoots were also 

 sent ; these also were densely covered with brown persistent perithecia- 

 bearing mycelium. 



Prof. Bucholtz wrote again, at the beginning of the present year, as 

 follows : " Although I have not had an opportunity of personally observing 

 the disease, I have obtained some information on the subject from other 

 people. I learn from Reval, in Esthonia, that mildew appeared there 

 about five or six years ago on Gooseberries in the fruit-gardens, and no 

 one is able to explain the origin of the outbreak. Unfortunately I have 

 so far been unsuccessful in obtaining specimens, and thus I do not know 

 whether the fungus really is S. mors-uvce. Further, Mr. E. Hoff informs 

 me that he frequently observed the disease (with which he is well acquainted) 

 in his garden in the summer of 1903. Some varieties were more strongly 

 attacked than others, but they were not always the American varieties. 

 He received reports about the disease in 1903 from Pskov (gov. Pskov). 

 In his opinion it is quite impossible to ascertain exactly where the bushes 

 come from, because they|have passed through many hands before they 



uvcb. I have investigated this case, and can state that the fungus in question was 

 not S, mors-uvce. There is no authenticated record of its occurrence as yet in England 



