520 



Appendix. 



Preparation. 

 Infuse the fresh powder in hot water for three or four hours, and then 

 strain oft" and add to the full amount of water. 



Uses. 

 For all biting insects as a spray, and for all insects as a powder or 

 fumigant. 



Time of Application. 

 According to the appearance of the pest. 



ACAEICIDES. 



LIVER OF SULPHUR. 



{Pofa,^siuru SiiJphitle. ) 



Formula. 

 Potassium Sulphide. .... 



Water 



3 to 5 oz. 

 10 "alls. 



Preparation. 

 Dissolve the substance in water. 



Uses. 

 This is not only fungicidal, but is also an acaricide, and may be used 

 on gooseberries for red spider. It may be mixed with paraffin. Its 

 action is somewhat uncertain as an acaricide, however, and its place is 

 being taken by paraffin jelly. 



LIVER OF SULPHUR AND PARAFFIN. 



Iron Sulphate 

 Quicklime . 

 Paraffin 



Potassium Sulphide 

 Water up to 



Formula. 



Preparation. 



2oz. 



1 oz. 



16 oz. (liquid). 



4 to 6 oz. 



10 galls. 



Dissolve the iron sulphate in 6 to 7 pints of water, and add to this 

 the (juicklime, made into a milk, passing it through a fine sieve to strain 

 off any grit, and then emulsify the above with 16 liquid ounces of 

 paraffin ; then dissolve the potassium sulphide in 9 gallons of water and 

 pour the emulsion into it and well mix. 



