I^EW YoEK Ageicultukal Experiment Station. 217 



1898, but the more susceptible varieties have suffered considerably. 

 It is well known that varieties differ greatly in their susceptibility 

 to leaf blight. At Poughkeepsie the variety Gandy was severely 

 attacked, while the variety Clyde growing in adjacent rows under 

 parallel conditions was almost entirely exempt. 



At Ghent we had an opportunity to observe the disastrous effect 

 of leaf blight upon the crop of the following year. A row of Hunn 

 stood beside a row of Parker Earle. In 1898 the Hunn blighted 

 very severely while the Parker Earle was but slightly affected. 

 On June L', 1899, the Hunn promised a very trifling yield. Many 

 of the plants did not even start in the spring. In marked con- 

 trast to the condition of the Hunn, the Parker Earle was making 

 the best showing for a berry crop that we have ever seen. 



It may be that some of our correspondents have confused the 

 leaf spot caused by Sphaerella fragariae with that caused by Asco- 

 chyta fragariae Sacc. The two diseases resemble each other 

 considerably, but the Ascochyta spots are redder and show minute 

 black pimples at the center. On May 31 we collected fruiting 

 specimens of the Ascochyta at Athens, Greene Co., but we do 

 not believe that it was anywhere as abundant as the Sphaerella. 



SUN-SCALD ( ?) 



On June 2 we observed at Ghent a peculiar disease on the 

 Hunn strawberry. The leaflets showed dead, brown V-shaped 

 areas at their tips (see Plate XVI, fig. 2). These dead areas often 

 extended half way down the midrib. They were generally situated 

 at the tip of the leaflet, but occasionally occurred at the side. 

 The disease occurred only on the Hunn, on which it was com- 

 mon but not destructive. It did not appear to be due to fungi 

 and certainly not to insects. We are at a loss to account for it 

 unless it may possibl}^ have been a case of sun-scald. 



