174 



STATE POMOLOGICAL SOCIETY. 



It appears that in the S3Tinged portion of the tree the per cent of 

 uninjured fruits was double that in the unsyringed portion, while 

 the percentage of the third quality', or much injured fruits was one- 

 half less. It also appears that all the fruits on the syringed por- 

 tion were larger in size than those on the unsyringed portion. We 

 also noted that there were man}' more decayed fruits on the unsyr- 

 inged portion of the tree. 



The indications are, therefore, the hyposulphite of soda proved 

 beneficial. The solution may be applied at the same time as the 

 Paris green and water, where the latter is used for the codling moth, 

 thus avoiding the expense of a special application. 



KEROSENE EMULSION AS AN INSECTICIDE. 



[From Report of Prof. C. V. Riley, U. S. Entomologist, 1884] 



It cannot be too strongly impressed upon all who use kerosene as 

 an insecticide, that it can be considered a safe remedy oni}- when 

 properly emulsified. The formula for the kerosene and soap emulsion, 

 as found most satisfactor}^ b}^ Mr. Hubbard, is as follows : 



Kerosene 2 gallons=67 per cent. 



Common soap or whale-oil soap h pound ") ^o ^^^ ^^^.f 



t^T -1 1 1 r — oo per cent. 



\\ ater 1 gallon j '■ 



Heat the solution of soap and add it boiling hot to the kerosene. 

 Churn the mixture by means of a force pump and spray-nozzle for 

 five or ten minutes. The emulsion, if perfect, forms a cream, which 

 thickens on cooling, and should adhere without oiliness to the surface 

 of glass. Dilute, before using, one part of the emulsion with nine 

 parts of cold water. The above formula gives three gallons of 

 emulsion, and makes, when diluted, thirty gallons of wash. 



