Some Fungous Diseases of Citrus and Other Fruits, 
BY PROFESSOR H. HAROLD HUME, OF THE STATE AGRICULTU¬ 
RAL COLLEGE. 
Mr. President, Ladies and Gentlemen: 
In the paper which I have prepared for 
this occasion I have decided to touch but 
briefly upon a few of the common dis¬ 
eases which affect the fruits of the State. 
To go into a thorough discussion of each 
and every disease would be entirely out 
of place. Such a paper would be much 
too lengthy and you would be thorough¬ 
ly tired of the matter before I had fin¬ 
ished. In the course of my remarks I 
shall touch upon a new disease of the or¬ 
ange, the scab of the Satsuma, pecan leaf 
blight, strawberry leaf blight, the crown 
gall of the peach and the pear blight. 
A NEW DISEASE OF THE ORANGE. 
In March Mr. A. E. Stebbins forward¬ 
ed to the Department a number of dis¬ 
eased orange twigs affected with a trou¬ 
ble new to him. In some respects it re¬ 
sembles dieback, but must be considered 
entirely distinct from that disorder. 
The twigs appear in many respects to be 
quite healthy, but scattered here and 
there over the surface are rather circu¬ 
lar, elevated, light brown patches. In 
some cases the elevated patches have a 
second elevation in the center. In diam¬ 
eter they vary from one-eighth to one- 
half an inch. In some cases they are 
confluent, forming patches of consider¬ 
able area, frequently surrounding small 
portions of apparently normal bark. In 
the early stages the spots show in the 
form of a number of small, dark, elevated 
dots, arranged in a somewhat circular 
group, and surrounded by a light yellow¬ 
ish band. This light band appears to 
mark the size of the spots when matured. 
In the later stages the elevated portions 
of the pustules cover nearly the whole 
surface of the twig, becoming somewhat 
grayish in color and giving, to the bark 
a very rough and uneven appearance. 
I have sought diligently for the cause 
of this trouble, but a microscopical ex¬ 
amination has revealed nothing. It is 
possible that in some later stage of the 
disease something will be found which 
will point to a specific cause. Upon in¬ 
vestigation of the literature of orange 
diseases I have not been able to find any¬ 
thing relating to it. 
It is not common and has as yet done 
but little damage, though in one case a 
’.ree was found badly affected and nearly 
killed. I advised Mr. Stebbins to make 
an application of a fungicide, but have 
not yet heard whether it had any benefi¬ 
cial effects. 
SCAB ON THE SATSUMA. 
During the past year a considerable 
number of Satsuma fruits and leaves af¬ 
fected by scab have been forwarded to 
