THE KANSAS PEACH. 79 



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 diffi- 

 cult in actual practice to use them without danger to the plants. The 

 winter treatment with kerosene emulsion, first described, is therefore 

 especially and strongly advised. 



HEADING OFF THE PEACH BORER. 



When borers once get into a peach tree there is nothing to do but 

 to cut them out. No application can be made to the outside of a 

 tree to kill the borers inside of it. 



The proper way is to keep them out from the beginning. No 

 young trees should be set out until they have been examined for 

 borers, and no tree injured by them should be put in. 



The trees should be wrapped with a double thickness of newspa- 

 per when set out, so that at least fifteen inches of the trunk above 

 ground is covered, and this wrapping should remain until the middle of 

 September. When the wrappings are taken off, the trees should be 

 closely examined, and if any borers have made their way in above the 

 j)aper8 they should be cut out. 



Thereafter the trees shovild be annually protected by paper wrap- 

 pings, put on not later than the first week in June, and preferably 

 before the 1st of that month ; this protection to continue each year 

 to the middle of September. 



Hydraulic cement mixed w4th skim-milk is equally effective, and 

 may be preferable on young trees. It is sufficiently lasting, and cheap, 

 and any borers attempting to enter above it are at once seen, since 

 there is nothing to shelter them. 



In tying on papers do not use too strong or stiff a twine. Peach 

 trees grow rapidly and may become girdled, unless the twine is some- 

 what yielding and breaks under a moderate strain. A little retying 

 may be required in August on young, rapidly growing trees. 



Such are the results of elaborate inquiry and tests at the New 

 Jersey experiment station, as summarized by Prof. John B. Smith in 

 bulletin No. 128. 



