108 Report or THE BoOrTANIST OF THD 
1901. Thro, Wm. C. Report of Nursery Inspection in Wiscon- 
sin for 1900: concluded. Zhe Wisconsin Horticulturist. 
Vol. VI, No. 2, p. 81, Apr. 1901. Baraboo, Wis. 
1902. Stewart, F. C. Sudden Dying of Raspberry Canes. 
American Agriculturist, 70:100. Aug. 2, 1902. 
All of the above articles are brief, the most important ones 
being the first and the third. 
DESCRIPTION. 
Both red and black raspberries are attacked, but on red varie 
ties the symptoms are somewhat different from those on black 
ones. The principal damage is done to fruiting canes, although 
new canes are attacked and occasionally killed during the first 
Season of their growth. The foliage on affected canes wilts sud- 
denly and becomes dry. The whole cane may be involved or 
only a portion of it. Often a single branch is killed, while the 
remainder of the cane continues alive and apparently normal. 
(See Plate VI.) In the majority of cases only a part of the cane 
dies. With black caps the disease frequently starts in the old 
stub left in pruning. From this point it‘gradually works down- 
ward, killing first the uppermost branch, then the next lower one, 
and so on until by the close of the berry harvest one-half or more 
of the cane may be dead. On black caps the disease also shows 
a tendency to work down one side of the cane, killing the bark- 
and discoloring the wood on that side, while on the other side 
the bark remains green. This may occasionally happen with the 
red varieties, but as a rule they are attacked at some particular 
point en the cane. Here the bark is dead and the wood brown. 
For some time the injury extends only part way around the cane, 
and as long as there is a strip of green bark left connecting the 
parts above the point of attack with those below all goes well; 
but when the injury at length completely encircles the cane the 
leaves on that portion above the injury suddenly wilt and die. 
By the time this happens, the cane at the point of attack is dead 
throughout a section which is usually from two to four inches in 
length. Both above and below this dead section the cane itself 
may be normal, with nothing to indicate the cause of the sudden 
wilting of the leaves. However, a cane may bear several of these 
