DISEASES OF CULTIVATED PLANTS. 417 
seed peas. It was shown by spraying ex- 
periments with Bordeaux mixture mixture 
that healthy seed peas may be grown. 
The growth of healthy peas for seeding 
disposes of the problem of anthracnose. 
Leaf-Spot. Other leaf-spots besides 
those of the anthracnose are sometimes 
found upon the pea and are apparently 
caused by another fungus (Sepforia Pist 
West.) These, if giving trouble, will be 
controlled by the spraying for anthracnose. 
Powdery Mildew (Zrysiphe communis 
Walir.) The mildew fungus often attacks 
the pea and at times entirely destroys its 
fruitfulness, It may be known by the 
whitish coating produced upon the leaves 
and by the dark, pin-head spots of the 
fungus observed to be situated in these 
white coverings. The same fungus like- 
wise attacks the bean. For either plant 
spraying with Bordeaux mixture, as per 
directions in calendar, will be found 
beneficial. The first applications should 
be made promptly. 
Wilt. A wilt of pea, apparently allied 
to that of cow pea ond other forage crops 
of the south has been referred to a species 
of fungus Neocosmospora (Fusarium). As 
yet it has not been especially studied in 
Ohio. 
Fig. 66. Pods of French June field pea 
spotted by anthracnose. After Van Hook, 
Bulletin 173. 
Fig. 67. Leaves of pea 
showing spots caused by 
anthracnose fungus-slight- 
ly magnified. After Van 
_ Hook. Bulletin 173. 
