Calcothioii, a ready made lime-sulfur wash has given good results 

 but is expensive. 



Re.x Lime and Siilftir Solution has proved to be of some value, but 

 not as efficient as the boiled material. Made in Omaha, the cost of 

 obtaining it in the east, added to its price which will be about $12.00 

 per barrel at retail would probably be too great to admit of its gen- 

 eral use in this locality. 



Con-so! which is more or less of a lime-sulfur mixture does not 

 seem to be of much value, judging from such tests of it as have been 

 noticed. 



Horiciim. Reports on this material vary from fair to poor in the 

 results which have been met with in preparing this summary. 



Caustic Soda applied at the rate of one pound in six gallons of 

 water was widely recommended at one time, but uniform failure to 

 destroy the scales at this strength or at any strength unless used 

 strong enough to injure the buds also, has led to dropping this 

 substance. 



Kil-0-ScaIe. A number of tests with this substance indicate that 

 it is not always an entirely satisfactory material, though the best 

 reports state that a large per cent of the scales was killed. 



Scalecide. This so-called " soluble oil " which is really a mixture 

 of distillate oil of petroleum, a vegetable oil and resin oil according 

 to the statements of persons interested, has obtained very variable 

 reports in different tests. Applied at the rate of one gallon to 

 twenty gallons of water it does not seem to be particularly effective, 

 but at the strength of one to twelve or one to fifteen, when applied 

 twice under pressure of one hundred pounds or more at the nozzle 

 it seems to be a very effective spray. It may perhaps be termed at 

 the present time a promising insecticide. 



Target Brand Scale Destroyer appears to be somewhat similar to 

 Scalecide in many ways, and the results obtained from its use have 

 been quite good in some cases, though when applied at the rate of 

 one gallon to twenty gallons of water the results have not been 

 entirely satisfactory. The reports seen would place this material 

 below Scalecide in effectiveness. 



After a careful study of all the reports on Scalecide and Target 

 Brand Scale Destroyer available, together with some personal expe- 



