INSECTS AND DISEASES 323 



to the use of stale solutions and careless boil- 

 ing. [Douglass.] 



Pyrethrum — Use dry, as a powder, or in sol- 

 ution in water, 1 ounce to 3 gallons. 



Sulphur — Flowers of sulphur may be ap- 

 plied in connection with other sprays or used 

 in dry form. When used in the former way, 

 add from one to two pounds to every fifty gal- 

 lons of spray. It may be applied also at the 

 rate of one ounce to one gallon of water. 



Tobacco — Steep stems or leaves in hot water 

 in covered vessel and dilute three to five times 

 when applying. The tobacco extracts are the 

 best. 



Whale-oil Soap — Dissolve two pounds in one 

 gallon hot water and dilute two to five times 

 before spraying. 



PLANT DISEASES 



The garden, even when the plantation is 

 small, will very likely be affected sooner or 

 later by some plant-disease. Soil conditions or 

 the introduction of affected stock may account 

 for the appearance of disease, but, to whatever 

 source it may owe its origin, immediate treat- 

 ment is necessary. There is no better fungi- 

 cide than the Bordeaux mixture, but as it 



