43 



kills insects by contact, it is the most effectual remedy 

 against the chinch bug, plant lice, bark lice, melon bug 

 and other sucking insects, and also for the cabbage worm, 

 and white grub, and will even kill eggs in some cases. It is 

 of the greatest importance that the emulsion be forcibly, 

 thoroughly, and evenly applied, as can be done only by the 

 use of some force pump arrangement. 



Kerosene may be used without the trouble of making an 

 emulsion with soap and water, and, so far as my experience 

 goes and from what I can learn of others, with equal re- 

 sults to the soap emulsion. This is rendered possible by 

 using a force pump that will mechanically mix the kero- 

 sene with the water at the instant of spraying. One can 

 readily see what an immense saving of time and trouble 

 this will effect. The best machine to use in this connection 

 is the Perfected Galloway Knapsack Spray Pump with kero- 

 sene attachment, made by the Deming Company, Salem, O. 

 or the one made by the W. & B. Douglass Company, Mid- 

 dletown. Conn. (See figure under machines for applying 

 poisons.) The water is placed in the usual reservoir and 

 the kerosene in an additional reservoir attached to it. The 

 proportion of kerosene to the water can be regulated by a 

 stop-cock. The kerosene is thoroughly mixed in the pump 

 and spray nozzle only when the pump is in action, other- 

 wise the two fluids remain separate. This attachment does 

 not interfere with the use of the pump for other purposes, 

 since a stop-cock completely shuts off all communication 

 with the attachment, which may also be removed. 



Kerosene emulsion may have added to it a small amount 

 of Paris green or preferalDle London purple and thus be con- 

 verted into an insecticide for both biting and sucking insects. 

 This method does away with the necessity of making two 

 applications of insecticides. I find it better to first dilute 

 the stock emulsion to the usual extent, and then to add the 

 Paris green or London purple in the proportion of one- 

 fourth pound to the barrel. To use the Paris green or Lon- 

 don purple with the kerosene and water spray from the 



