Leaflet No. 140. 4 



given below have proved to be thoroughly efficient in 

 destroying this pest when applied according to instructions: — 



1. Paraffin Emulsion. — This should be prepared in the 

 following way : — Mix equal proportions of soft soap, dissolved 

 in boiling water, and paraffin, and churn them up by means 

 of a force-pump or syringe. When required for use add 

 twenty times its bulk of water and again churn. 



2. Paraffin Emulsion with Sulphur and Turpentine 

 added* — Take about half a gallon of soft water, boil and 

 dissolve about 1 lb. of common soap, add a handful of 

 sulphur and a pint of paraffin, and about the same quantity 

 of turpentine. Add about four gallons of soft water to this 

 mixture and churn well together, as recommended above. 



3. Caustic Alkali Wash.} — Dissolve 1 lb. of commercial 

 caustic soda in water, then 1 lb. of crude potash or pearl ash 

 in water. When both have been dissolved mix the two well 

 together ; then add J lb. of soft soap, stir well and add 

 sufficient water to make up to ten gallons. CAUTION. — Do 

 not mix in painted vessels of any kind. 



Formulas Nos. 1 and 2 should be applied with a good stiff 

 scrubbing-brush, one having the bristles also set at the end 

 being the most serviceable. Care should be taken to scrub 

 the mixture well into the crevices and bifurcations of the 

 branches and to break up the white coverings of the insects 

 as much as possible. Nos. 1 and 2 may be applied at any 

 time between September and the first week in April. 



The caustic alkali formula is essentially a winter wash, 

 but may also be applied in early spring. It is usually 

 applied with a spray pump or syringe, and is particularly 

 useful in treating the smaller branches of trees. Two or 

 three sprayings at intervals of two or three days are 

 necessary. This wash has a burning effect upon the hands 

 of the operator, and care must be taken in employing 

 it. Close-fitting rubber gloves may be worn to protect the 

 hands ; and a rubber washer or fiange, about 2 in. wide, 

 should be fitted to the tube of the sprayer or syringe to 

 prevent the wash running down to the hands of the operator. 



* Gillander's Mixture : Traus. Manchester Microscopical Soc, 1898. 

 Separate reprint, p. 12. t See also Leaflet No. 70. 



4, Whitehall Place, London, S.W. 

 May, 1905. 



The Board of Agricidture and Fisheries would be glad 

 if recipients of this leaflet would make it known to others 

 interested in the subject. Copies may be obtained free of 

 charge and ]wst free on applicatioyx to the Secretary , 

 Board of Agriculture and Fisheries, 4, Whitehall Place y 

 London, S.W. Letters of application so addressed need not 

 he stamped. 



