15 
with tbis method is that already given—namely, the extreme sensitive- 
ness of the foliage of the peach and allied fruits to damage by scald- 
ing with arsenical sprays—and if this method is followed the poison 
should not be used in much greater amount than 1 pound of the arsenical 
to 400 gallons of water, previously mixing the poison up with an equal 
weight of lime in a small amount of water. 
The experience in California with the arsenicals, as reported by Mr. 
Ehrhorn, has not been satisfactory. It has been found very difficult 
in actual practice to use them without danger to the plants. The 
winter treatment with kerosene emulsion, first described, is theretore 
especially and strongly advised. 
