EXPERIMENT STATION BULLETINS. 317 



Plot 6:— Lime, air-slaked, 32 lbs., kerosene 8 gallons, with water to 

 make 40 gallons. 



Plot 7 :— Scalecide 1 gallon, water 25 gallons. 

 Plot 8:— Scalecide 1 gallon, water 20 gallons. 

 Plot 9:— Con-Sol 1 gallon, water 50 gallons. 



Plot 10 

 Plot 11 

 Plot 12 



: — Con-Sol 1 gallon, water 40 gallons. 

 -Kilo-Scale 1 gallon, water 25 gallons. 

 -Kilo-Scale 1 gallon, water 20 gallons. 



The experiments were carried on in the peach orchard of Mr. J. Lind- 

 ley, three miles south of South Haven, who kindly allowed ns the nse 

 of such trees in his orchard as were needed for the test. The trees 

 were from seven to eight years old, were reasonably well pruned, had 

 never been sprayed and all were quite badly infested with the San Jose 

 scale, furnishing ideal conditions for carrying on the experiments. The 

 remainder of the orchard was sprayed by Mr. Lindley with the regular 

 mixture of lime, sulphur and salt. The spraying was done on April 7th 

 and 8th, 1905. 



Kil-o-Scale is a patent mixture manufactured by the Thomson Chem- 

 ical Co., of Baltimore, Md. It mixes readily with water and sprays 

 freely through the finest nozzles. It is a soluble mineral oil. 



Scalecide is a mixture sent out by B. G. Pratt Co., 11 Broadway, N. 

 Y. It also mixes freely with water the same as Kil-o-Scale, which it 

 resembles. 



Con-Sol is a mixture put out by the American Horticultural Dis- 

 tributing Co., and is evidently a concentrated solution of lime and sul- 

 phur. It mixes readily with cold water and it gives little trouble in 

 its preparation or application. 



Kerosene and lime is an emulsion of kerosene and lime. It can be 

 made with limoid, dry-slaked or air-slaked lime. In using the air-slaked 

 lime, it took considerable stirring and pumping to secure a good emul- 

 sion. 



The trees were examined on July 15th and again on November 28th 

 and the following results were noted on those dates respectively. 



Plot 1:— Lime 25 lbs., sulphur 15 lbs., salt 8 lbs., boiled 35 minutes. 

 July 15th, no live scale found. 



Plot 2:— Lime 25 lbs.,, sulphur 15 lbs., boiled 35 minutes. July 15th, 

 no live scale found. Nov. 28t]i, a very few live scales found ; very satis- 

 factory. 



Plot 3 :— Lime 25 lbs., sulphur 15 lbs., and salt 8 lbs., boiled 10 min- 

 utes, July 15th, an occasional live scale found. November 28th, many 

 live scales found; only fairly satisfactory. 



Plot 4:— Lime 15 iIds., sulphur 10 lbs., salt 6 lbs., boiled 35 minutes. 

 July 15th, a very few live scales found. November 28th, quite a good 

 many live scales found. 



Plot 5: — Air-slaked lime 40 lbs., kerosene 10 gallons, water 40 gal- 

 lons. July 15th, an occasional scale found. November 28th, a few live 

 scales found; quite satisfactory. 



Plot 6: — Air-slaked lime 32 lbs., kerosene 8 gals., water 40 gals. 

 July 15th many live scales. November 28th badly infested. Of no value 

 at all. 



