very severe on some varieties which ordinarily are injured very little. This 

 raises the question, why? What happened? 



Experience has demonstrated that open winters are likely to be much harder 

 on raspberries than severe winters with steady cold. Since we had a very mild 

 open winter till the end of February it is probable the raspberries lost a lot 

 of cold resistance which they never regained. Thus, they were ill prepared for 

 the very cold weather of March. 



Cold injury is not the only trouble which can cause canes or parts of canes 

 to die during the winter. Disease can also do this, particularly spur blight. 

 Our chief commercial variety, Latham, is very susceptible to this disease. Spur 

 blight frequently girdles the canes, often near the ground, and the cane dies 

 above this girdle. In the spring what appears to be cold injury is actually the 

 result of disease. Spur blight was certainly a major factor in cane killing in 

 several varieties in the University planting last winter and undoubtedly was in 

 others. Good control of spur blight during the summer would result in less cane 

 injury to susceptible varieties during the winter. Unfortunately present control 

 methods Sometimes fail to give satisfactory results. Nevertheless, they are the 

 best we have and should be used as diligently as possible. 



J. S. Biiley 



I I I I I I I I I I I I I I I I 



STRAWBERRY TWILIGHT MEETING 



On Tuesday Evening, June 21 at 7:00 P.M., there will be a Strawberry 

 Twilight Meeting at Fisher laboratory (the cold storage) on the University 

 Campus at Amherst. Details will be made available later. 



J. S. Bailey 



I I I I I I I I I I I I I I I I 



Contributors to This Issue from Supporting Fields 



E. J. Rasmussen, Extension Horticulturist, University of New Hampshire 

 Russell Eggert, Professor of Horticulture, University of New Hampshire 

 0. C. Roberts, Associate Professor Emeritus, University of Massachusetts 



