742 
The Philippine Journal of Science 
1621 
The symptoms described by Butler (l) on the leaves, as well 
as those described by Cooke, are identical with those of the 
local trouble. 
Faucett(2, p. 22) finds that: 
On the berries the largest spots, those fastening the fleshy part of the 
fruit to the parchment, almost always are found on the upper side. Any 
part of the fruit may be attacked, the spots appearing at first as small 
brown discolorations. They are especially common on the nearly ripe ber- 
ries. At the time of picking, the larger spots cover about half of the fruit 
and are velvety with the spore-bearing outgrowths of the fungus. 
He also states that the fruits become infected from the spores 
formed on leaf lesions. 
Butler (l) and Faucett(2) are agreed that the leaf spot may 
be readily controlled by judicious spraying with Bordeaux 
mixture. According to Faucett, the fruit lesions may be reduced 
by controlling the leaf spot. 
THE DISEASE IN THE PHILIPPINES 
The attack of Cercospora coffeicola Berkeley and Cooke in the 
Philippine Islands is confined to leaves, so far as present obser- 
vations indicate. The disease has been observed only on nursery 
stock and has not been found on mature trees. A thorough 
survey of the coffee plantations of the Islands has not been pos- 
sible ; so the limits and seriousness of the disease are not known 
at the present time. 
SPECIES ATTACKED 
Several species of coffee seedlings are grown in the college 
nursery, and no effort is made to keep them isolated. Because 
of this any spores from disease lesions may readily be trans- 
ferred to seedlings of all species. 
Under such conditions the leaf spot would be expected to 
parasitize all susceptible species. However, of the five species 
grown, Coffea bukobensis is the only one affected by the disease. 
The following species are unattacked: Coffea liberica, Coffea 
robusta, Coffea congensis, and Coffea conophora. 
The locality from which the disease came is a matter of 
speculation for, although the plantations as well as the nursery 
have been frequently visited by collectors and pathologists for 
the past five years, no mention has been made of this leaf spot. 
No coffee seedlings or seeds have been brought to the college 
plantation since 1916, when Coffea liberica was obtained from 
Lipa, in Batangas, a neighboring province. It is well to note 
