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farm orchard, but rather the advent of the spraying of the farm orchard. The 

 small orchard on the farm may be sprayed as well as the big commercial orchard. 

 Spraying machines for sucfi purposes are not expensive. The cost of the work 

 is very low and the value of the produce is high, very high in fact, considering the 

 low orchard in the Province. Then let us have the old farm orchard sprayed and 

 sprayed right, and more trees planted to supply the coming generations. It will 

 be an investment in health, happiness and prosperity. 



THE DOWNY MILDEWS 



By E. Melville Du Porte, Macdonald College. 



The Downy Mildews constitute a family of fungi known to the systematist 

 as the Peronosporaceae. They should not be confused with the powdery mildews 

 which belong to an entirely different group of plants, differing from the downy 

 mildews in habit and morphology. 



Characters. — The fungi of this family are entirely parasitic and several of 

 them are responsible for well known destructive diseases of cultivated plants. 



3 2 



Late Potato Blight. Showing the method of producing spores. 



The mycelium, or vegetative portion of the fungus, is made up of branched, 

 unicellular filamentous hyphae. It is produced abundantly and, except in the 

 genus Phytophthora, is always intercellular. In order to obtain the necessary 



