The Bulletin. 25 



which it is prepared, and because it is not so destructive to the 

 spray pumps. During the past spring this material was used by 

 the Candor i'ruit Company, in Montgomery County, in their peach 

 orchards of about 33,000 trees. At the same time the Lime-sulphur 

 wash was being used in the Van Lindley orchard at Southern Pines, 

 which is of about the same size. 



We wish to point out that we do not think that this material is 

 as safe to use, nor as certain in its results, as the regular Lime- 

 sulphur wash, and it is certainly considerably more costly per gallon 

 or barrel^ yet, on the other hand, it is so very easy and convenient 

 to use that it is likely to be more wadely used in future, and we 

 recommend it as having usually given better results than the other 

 patent or proprietary substances which are now on the market for 

 the control of this insect. We have had it under observation for 

 two years at Raleigh and in Moore and Montgomery counties, and 

 the general result is favorable. 



When the manufacturers first placed this material upon the 

 market it was claimed that it was effective wheij used at the rate 

 of 1 gallon to 25 gallons of water, but this was soon proven to be an 

 error, and 1 gallon to 12, or 1 to 15, is now recognized as the best 

 strength at which to use it. 



"Scalecide" can be used at any time through the winter and 

 until the buds burst in the spring ; but unlike the Lime-sulphur wash, 

 there is no advantage in applying it in late winter, for it does not 

 form a coat on the branches. On the other hand, its best effect is 

 secured by using it in late fall, as soon as possible after the leaves 

 have fallen, for at that season there are many young insects which 

 will be readily killed, and as it is the young or half-grown scales 

 that pass the winter it will reduce the number that pass through 

 that season. 



Can Both Remedies be Used to Advantage? 



We believe that if a grower wishes to go at the San Jose Scale 

 with the determination to do the very most thorough work possible 

 against it, he can combine the use of the two remedies (Lime-sulphur 

 wash and Scalecide) to excellent advantage. We base this opinion 

 upon this line of reasoning, which is borne out by the facts as observed 

 in orchards: A treatment of "Scalecide" in fall will kill off the 

 very young scales, while the old scales naturally die during the 

 winter. Hence, where Scalecide is thoroughly used in the fall 

 practically all the scales that escape and pass the winter will be 

 of about the same age, and will therefore come to maturity at about 

 the same time early in the spring. If now this be followed up by 

 giving a very thorough coating with the Lime-sulphur wash in late 



