REMEDIES AND PREVENTIVES. 221 



ten gallons of water. These emulsions are 

 offensive to all forms of insect life, and should 

 be used freely. Kerosene at its full strength 

 does not seem to injure grape foliage, and 

 therefore stronger emulsions should be tried 

 to prevent the ravages of the rose beetle. 



Whale Oil Soap in the proportion of one 

 pound to five gallons of water is used as a 

 spray, or dip, or wash, to kill mealy bugs and 

 lice. When used as a wash, sulphur may be 

 added freely. 



Tobacco is used as smoke in houses, or any 

 confined place, to kill lice and similar insects. 

 The fumes should not be too strong, but re- 

 peated three or four times daily. A decoction 

 of one pound of tobacco stems to two gallons 

 of water may be used as a spray or dip. 



Sulphur and Scotch snuff, mixed with the 

 soap or tobacco liquors, is used as a paint 

 upon the trunks of trees to destroy lice ; ap- 

 plied with a paint brush. 



White Hellehore. — This is a mild poison, but 

 is quite sufficient to destroy the currant-worm; 

 and as it soon loses its strength it is much 

 safer to use than the arsenites when the fruit 

 is near ripening. The powder may be placed 

 in a thin muslin bag, and then tied to the end 

 of a cane three or four feet long. A slight 



