Oe ee ee Ke ee he Pee ee 
New York AGRICULTURAL EXPERIMENT STATION. 157 
= s reports*® of the Station and in two of the later ones.8® Some of 
the points covered by these studies are: The symptoms and be- 
havior of the disease; amount of damage done by it; the relative 
susceptibility of different varieties; the use of immature seed as a 
predisposing cause; attempts to reproduce the disease by artificial 
inoculation; and a search for fungi and bacteria in the diseased 
tissue. 
The only other tomato disease to receive attention at the Sta- 
tion is a fungus leaf spot (Cylindrosporium sp.).’5* An experiment 
made on Long Island in 1895 showed that spraying the plants with 
bordeaux mixture at frequent intervals checks this disease consider- 
ably but that it can not be controlled satisfactorily if the spraying 
is discontinued when the fruit commences to ripen. 
MISCELLANEOUS PLANT DISEASES. 
The review of the work on plant diseases given in the preceding 
pages includes most, but not all, of the Station investigations on 
this subject. There are a few of the Station bulletins which con- 
tain notes and short articles on so large a number of diseases that it 
has seemed inadvisable to mention them all. To do so would 
‘lengthen this review considerably without adding much to its value. 
It is thought that a better method is to discuss these miscellaneous 
bulletins separately. 
Bulletin 186,88 The Sterile Fungus Rhizoctonia as a Cause of 
Plant Diseases in America, contains a report of some investigations 
made in cooperation with the Cornell Experiment Station. Each of 
the Stations having undertaken independent studies on certain plant 
diseases caused by Rhizoctonia it was thought that the work could 
be prosecuted to better advantage by cooperation. With the ex- 
ception of beet root rot, very little was known at this time about 
Rhizoctonia diseases in America. It was found that Rhizoctonia 
attacks many different plants causing root rot, stem rot and damp- 
ing off. Some of the plants affected are bean, beet, cabbage, carrot, 
carnation, cauliflower, celery, china aster, cotton, coreopsis, lettuce, 
ornamental asparagus, potato, radish, rhubarb, sweet william and 
violet. 
Rpts. 27138; 2:104;.3:227; 379; 4:210, 276; 52170, 273. 
_*™* Rpts. 14:529; 16:271 (same in Bul. 125:305). 
So Rpt. 54529-5331. 
*8 Reprinted in Rpt. 19:97-121; also published as Cornell Sta. Bul. 186 
(1901). 
