398 AGRICULTURE OF MAINE. 



are only of pin-head size. Brooks, however, has shown that 

 they may attain a much larger size.* Fig. 65 shows the char- 

 acteristic development of apple scab in storage. Doubtless much 

 of the infection takes place immediately before or at the time 

 of picking, but in one instance, at least, observed during the past 

 winter, the evidence plainly indicated spread in storage. In a 

 box of very clean No. i Mcintosh, packed for perfect apples, 

 one bearing a medium sized scab spot covered with spores was 

 placed by accident. This box was placed in a relatively cool but 

 quite moist cellar and when opened by one of us in mid-winter 

 several apples lying immediately below the summer-scabbed ap- 

 ple were covered with the small black spots above described. 

 The remainder of the fruit in the box was without blemish of 

 any kind. 



Fruit from trees that are well sprayed will be less likely to 

 develop the disease in storage. Scabby apples should be care- 

 fully sorted from the sound before storing. The temperature 

 of storage should be as low as consistent with safety and not 

 subject to abrupt changes. Very moist storage conditions 

 should be avoided. 



Cylindrosporium fruit spot. This spot of apples which was 

 first described by Brooks** is caused by a fungus. Cylindro- 

 sporium pomi Brooks. It should not be confused with the dis- 

 ease of apples which has been known for several years as Bald- 

 win spot and which has been studied by a number of investiga- 

 tors. The Baldwin spot is not caused by the growth of a living 

 organism, as has been proved a number of times by men work- 

 ing in widely separated places. 



In Brooks' paper he has distinguished very clearly between the 

 two diseases, but the writers regard it as unfortunate that he has 

 substituted the name "Fruit Pit" for a disease which has been 

 generally known in other parts of New England under the name 

 "Baldwin spot," because certain writers and others have erron- 

 eously used the term "Baldwin spot" so as to include an entirely 

 distinct disease. It is freely admitted, however, that if no con- 

 fusion would result and the disease were being described for the 

 first time, "Fruit Pit" is a more accurate descriptive term. In 



*Brooks, Chas. N. H. Exp. Sta. Bui. 144, P- ii3, IQOQ- 

 ** Brooks, Charles. The fruit Spot of Apples. N. H. Exp. Sta. 

 Report 20; 332-365. 1908. 



