STRAWBERRY DISEASES 429 



FROST-INJURY 



Caused by the action of low temperatures 



Spring frosts often do damage to strawberry plants. Those 

 varieties in which the seeds are most exposed suffer most. 

 Plants severely affected with leaf-spot have been observed to 

 be more injured in the winter than those plants free from this 

 disease. Mulching is practiced as a measure against winter- 

 injury, while simply covering the plants with straw or blankets 

 is practiced as a protection measure against spring frosts. 

 (Fuller discussion of frost-injury given under Apple, page 35.) 



