112 



Combined Insecticides and Fungicides. 



Where control of insects and diseases is needed at about 

 the same time, a combination of an insecticide and a fungicide 

 is desirable to save time and labor by putting on the two 

 together as a mixture. To combine the desired insecticide and 

 fungicide, howcAer, is not always a simple task, as the two 

 materials may change on mixing and produce substances which 

 M^ould be injurious. Precautions in making such mixtures 

 must therefore be taken. 



Lime-sulfur, Lead Arsenate and Nicotine Sulfate {Winter Strength). 

 Commerciallime-sulfur (gallons), ... 6 



Lead arsenate, powder (pounds), IJ, or paste (pounds), 3 



Nicotine sulfate, 40 per cent (pint), . ^ 



Water, to make (gallons) . . 50 



This is the mixture to use for the first spraying (see "Spray 

 Schedule," page 113). 



Lime-sidfur, Lead Arsenate and Nicotine Sidfate {Summer Strength). 

 Commercial lime-suifur (quarts), . . 5 



Lead arsenate, powder (pounds), 1|, or paste (pounds), . 3 



Nicotine sulfate, 40 per cent (pint), | 



Water, to make (gallons) 50 



This is for the second and third sprayings (see "Spray 

 Schedule," page 11.3). 



Lime-sulfur and Lead Arsenate {Summer Strength). 



Commercial lime-sulfur (quarts), 5 



Lead arsenate, powder (pounds), 1^, or paste (pounds), 3 



Water, to make (gallons) .... 50 



This is the mixture to use for the fourth spraying (see 

 "Spray Schedule," page 113). 



Combination Insecticides. 



Arsenate of Lead and Nicotine Sulfate. — In cases where 

 chewing and sucking insects are present but no treatment for 

 fungous diseases is necessary, arsenate of lead may be pre-- 



