134 Report OF THE DEPARTMENT OF BoTANY OF THE 
wood and the formation of fruit buds for next year. How great | 
will be the damage from this cause can not be determined until 
next season. As already stated, some plantations were almost 
completely defoliated by July 10. By July 22 many plantations 
were completely defoliated and many more had lost from one- 
half to two-thirds of their foliage. As arough estimate we would 
say that in the region between Highland and Newburgh probably 
two-thirds of all currant leaves (excepting black currants) had 
fallen by July 22. About this time Septoria ribis also appeared 
and assisted in completing the destruction. At what time the 
defoliation was completed we are unable to say, since we did 
not visit the region between July 22 and September 2. On the 
latter date very few green currant leaves were to be found; and 
yet, normally, currants hold their leaves until. heavy frost. On 
the station grounds, at Geneva, sprayed currants of many differ- 
ent varieties were in nearly full foliage as late as October 15. 
The disease was more destructive in old plantations than 
among young plants. Plants in the nursery row were attacked 
latest of all and consequently suffered least. It was a common 
observation among fruit growers that the disease was more 
severe on high, dry soil than in lower situations where the soil 
was heavier and naturally moister. Our own observations con- 
firmed this. The disease was also somewhat less severe on plants 
which were partially shaded. It is a common practice in the 
Hudson Valley to plant currants between the rows im peach 
orchards. Hence, it comes about that many bushes are in par- 
tial shade. The’ shaded plants were not attacked so early as 
were those fully exposed to the sun. 
Concerning the amount of damage done by currant anthrac- 
nose elsewhere than in the Hudson Valley, we have little infor- 
mation. At Geneva, some plantations lost a large part of their 
foliage because of anthracnose, and it was present in greater or 
less amount in almost all plantations; but the damage done by 
it does not appear to have been great. Prof. Craig informs us 
that the disease was common at Ithaca. 
