748 



journal of Agriculture, Victoria. [lo Nov., 1911. 



Remedies. 



Red oil emulsion — i in 45 — has proved very effectual in destroying 

 this and other scales. Several sprayings will probably be necessary. The 

 formula for making red oil emulsion is as follows: — Boil i lb. of hard 

 sliced up soap in a gallon of water till the soap is dissolved. Remove 

 the vessel from the fire and add 2 gallons of oil to the boiling mixture. 

 Agitate violently for a few minutes with a syringe, or replace the vesse) 

 on the fire and allow the mixture to boil again for five minutes. 



ORANGE BRANCH, SHOWING SOOTY MOULD FUNGUS ON STEM AND LEAVES. 



Red oil wash covers bark and insects more thoroughly than crude 

 petroleum wash at the same strength. Winter treatment has been found 

 to be most effective against such insects'. 



When the young scales are just hatched and are moving about the 

 trees, kerosene emulsion will readilv destrov them. 



