SPRAY CALENDAR. 

 B. — Against Plant-lice and Scale Insects. 



'97 



Treatment* 



1. Kerosene emulsion (For- 

 mula 10), (1 part to 4 

 parts water.) 

 Or whale-oil soap (2 lbs. to 



1 gal. hot water). 

 Or petroleum soap emulsion 

 (Formula 14a). 



When to Spray. 



Insects controlled. 



In winter or early spring. Plum scale, San Jose scale, etc. 



2. Kerosene emulsion (For-| As soon as lice appear on' Plant-lice, 

 mula 10), (1 part to 10 young leaves, 

 parts water). 



Or whale-oil soap solution 

 (Formula 12), (1 lb. to 7 

 gals, water). 



Or tobacco solution (For- 

 mula 11). 



PEACH. 

 A. — Against Peach-leaf Curl, Brown Rot, Curculio, Bud-moth. 



B. — ^Against Aphis, and Scale Insects. 



1. Kerosene emulsion (For- Whenever young lice appear. Aphis. 



mula 10), (1 part in 10 

 parts) . I 



Or whale-oil soap (Formula 

 12), (1 lb. in 7 gals, 

 water) . 



2. Whale-oil soap (2 lbs. in 1 In eariy spring before buds San Jose scale. 



gal. hot water). | open. 



Or crude petroleum, 25 per 

 mechanical emulsion. 

 (Slightly dangerous.) 



C. — Against Peach Tree Borer. 



1. Prof. Slingerland recommends gas tar as a trunk wash. A trial experiment should be 

 made first on a few trees to find out if it injures the trees, for gas tar varies in comparison. 



2. Dig out or probe the borers every fall and spring ; and mound up a new base with earth 

 for six inches ; remove and examine in September. 



3. Apply Formula in early June. 



