Fungicides, Insecticides, and Spraying 



Calendar. 



George E. Stone, Henry T. Fernald, Samuel T. Maynard. 



This bulletin contains a compilation of fungicides and insecticides 

 taken from various sources and the usual spraying calendar. Many 

 of these mixtures can be obtained already prepared from reliable 

 dealers which saves much time and trouble in mixing them. The 

 following precautions should be taken into consideration: 



1. Care should be taken to keep all substances employed injspray- 

 ing where they cannot be gotten at and used by mistake. All sub- 

 stances should be correctly labeled. 



2. Solutions and mixtures containing copper sulfate, corrosive 

 sublimate, and arsenate of lead should be made in wood, glass or 

 earthern vessels. 



3. Arsenical solutions should not be applied to fruits, etc. within 

 two weeks of the time when they are to be used as food. 



4. Trees should not be sprayed when they are in blossom as the 

 bees which are necessary to fertilize the flowers may be destroyed. 



