Spraying lor me Destruction of Itisecls arm Fungous Growtlis. 



The results of spraying duriug tlie past season to protect crops 

 from insects and fungous pests, again show the great benefits derived 

 from this work. 



All of the fruit and vegetable crops grown on the college grounds 

 generally injured by the above pests, were treated according to the 

 spraj'ing calendar of 1(S97 and in most cases with marked beneficial 

 results. 



PUMPS AND NOZZLES. 



There has been considerable improvement made in the pumps and 

 nozzles put upon the market in the past year, and many new pumps 

 have been offered. Whatever the kind of pump purchased it is 

 important that it be used carefully, that the spraying material, if 

 containing coarse particles, be carefully strained before use, that all 

 parts be kept well oiled and after using that the pump be cleaned by 

 pumping sufficient clear water through it to clear it of corroding 

 materials. 



Good judgment and considerable mechanical skill must be exercised 

 to get the best results with any complicated machine, and only those 

 persons possessing these qualifications should be allowed to use the 

 pumps. 



INSECTICIDES. 



While there are many new insecticides offered, there is so little 

 exact knowledge of their effect upon farm and garden crops that 

 until further ti'ial is made we can only recommend for general use 

 Paris green and hellebore for chewing insects and kerosene emulsion 

 for sucking insects, with pyretlirum or insect powder in a very few 

 cases. 



KEROSENE EMULSION. 



Formula. ^ lb. common bar soap, 



2 gallons common kerosene. 

 Cut the soap into small pieces or shavings and dissolve in about 

 two gallons of hot water. "\A hile still hot, pour in the kerosene and 



