344 CONNECTICUT EXPERIMENT STATION REPORT, I9QI2. x 
Orange Rust of blackberry, etc., was more common than usual, 
as, was also the Anthracnose of cherry. Sun Scorch and Black 
Spot of maple were not uncommon. The Bark Disease of chest- 
nut, on the other hand, seems to have been set back somewhat by 
the moisture conditions more favorable to its host, since a number 
of observers reported fewer infections, and old cankers with 
less vigorous development than in the preceding year. Bacterial 
Rot of cabbage did some damage in certain fields, and will be 
described later in this report. Anthracnose of currants caused 
considerable harm by premature defoliation. 
Leaf Spots of horse-chestnut and Boston ivy were more con- 
spicuous than usual. Leaf Mold of melons caused considerable 
injury, so that the sprayed vines did much better than those 
unsprayed. Leaf Curl of peach was more conspicuous by far 
than we have ever seen it, due to the favorable wet spring; 
and Scab was also conspicuous. Brown Rot, on the other hand, 
did comparatively little harm except to certain early varieties 
like the Champion. This was due in part to the light crop, and 
in part to the rather dry weather at harvest time. The Bac- 
terial Blight of pear and quince and the Rust of the latter host 
were more prevalent than usual, though not very serious. Early 
Blight of potatoes developed somewhat, and there was consider- 
able Tip Burn, but little or no Late Blight. There were a few 
complaints of Yellows of raspberry and Mildew of rose. 
Beside the preceding, there were reported during the two 
years a number of new or unusual troubles which we shall 
describe more in detail under the following heads: 
B. DISEASES OR HOSTS NOT PREVIOUSLY REPORTED. 
APPLE, Pyrus Malus. 
Rust, Orance, Resielia aurantiaca Pk. We have already 
reported two other species of rusts on the leaves and fruit of 
apple, but this is the first species we have seen occurring on 
the stems. This, however, is rather characteristic of the present 
species, as we have found it on other hosts, the quince and 
Crategus, not uncommon on the twigs. It was sent to the 
Station from two different localities during the past season, but 
evidently is not very common on the apple, as we have never col- 
lected it ourselves on this host. It forms fusiform swellings on 
