the attack comes early in the season it prevents the devel- 
opment of a full crop of fruit. If the attack comes after 
the fruit has been harvested the plants are weakened so 
that the crop for the next year will amount to nothing, or 
at least be shortened, depending u]3on the severity of the 
attack. As the mycelial threads of the fungus are within 
the leaf tissues it is apparent that preventive, rather than 
curative measures must be resorted to. The fungus sur- 
vives the winter within the leaf, both by spores and by its 
mycelium. It follows that the destruction of infested leaves 
in the fall is important as a means of holding the disease in 
check. d'he practice of mowing the old leaves after the 
fruit has been removed and then burning is not to be rec- 
ommended because it sometimes results in injury. It is 
better to rake the leaves off the bed for burning and then by 
cultivation and the application of ferlilizer induce a vigor- 
ous new growth preparatory to fruiting the next season. 
The simplest and most effective way of controlling the 
disease is, however, by spraying with any of the standard 
fungicides adapted for application to foliage. The following 
have been successfully used. Hyposulphite of soda, one 
pound to ten gallons of water, applied every ten days. 
Modified “Eau celeste” made as follows — Dissolve one 
pound copper sulphate in two gallons of water; in another 
vessel dissolve one pound of Sodium carbonate; mix these 
two solutions and when chemical action has ceased add one 
and one-half pints of ammonia. Dilute to 25 gallons. Am- 
moniacal copper carbonate made by dissolving three ounces 
copper carbonate in one quart of ammonia, and diluting to 
25 gallons. Three or four applications of the copper solu- 
tions are usually sufficient. 
ORANGE RUST OF RLACKRERRIES AND RASPBERRIES. 
This disease has been reported from Arvada and 
other places near Denver, and has been present here in 
Fort Collins for the past three years. It has not been 
ixirticularly destructive, but the damage done is sufficient 
to warrent a word of caution. Eastern growers have in 
many places suffered severely from the disease, and it 
would be well to profit by their ex])erience and use every 
effort to exterminate it. The cause of this disease is a 
true fungus ( C?coma nitens) which has been known under 
various names since 1820. 
Its presence has been reported from nearly every state 
east of the mountains: it is common in Canada, and is also 
known in Europe. Apparently it is confined in its work to 
