76 EXPERIMENT STATION. [Jan. 



nier. This was affected not only with frost blisters, but con- 

 siderable injury was caused by a mite, the effect being in many 

 cases similar. An early outbreak of apple scab was also noticed 

 on apj)]e foliage. 



Strawberries were of poor quality, and considerable rot of 

 the fruit occurred, owing to excessive rainfall. The foliage of 

 rock maples and oaks was affected to an unusual extent with 

 Gloeosporium. In many sections maples in general were af- 

 fected with this fungus, causing a browning of the leaf and 

 inuch defoliation, and many inquiries were received concern- 

 ing this trouble. 



Some of the diseases which were more common are as fol- 

 lows: hollyhock rust, sweet pea trouble, apple rust, hawthorne 

 rust, quince rust, black rot of grapes, crown gall, sycamore 

 blight, blossom end rot of tomatoes, ])ear blight and pear scab, 

 corn smut and maple leaf spot (Rhytisma). Considerable in- 

 terest is also manifest in the chestnut disease, which is becom- 

 ing more noticeable in this State. 



The following is a list of the less common diseases reported 

 during the year : ash rust, bean rust, rose rust, pea mildew, rose 

 mildew, currant Anthracnose, Anthracnose of melon, rust on 

 strawberry leaves, cherry leaf spot (Cylindrosporium), potato 

 rot, horse chestnut blight (Phyllosticta), apple scab, cane blight 

 of raspberries (Coniothyrium), blackberry Anthracnose and 

 cherry leaf blight (Cercospora). Besides these may be men- 

 tioned troubles with which no organisms are associated, namely, 

 frost blisters, frost effect on asparagus, sun scald and sun 

 scorch, malnutrition of cucumbers and aster yellows. 



