The standard mixtures are : 



(a). 25 gallons (full 'strength mixture, or 4--4— 25 formula), 

 that is, 4 lbs, copper sulfate, 4 lbs. lime and 25 gallons 

 water. 

 (b). 50 gallons (half strength mixture, or 4 — 4 — 50 formula), 

 (c). 6 — 4 — 50 formula, 

 (d). 3 — 6 — 50 formula, 

 (e). 2 — 2 — 50 formula, 

 (f). 3 — 9 — 50 formula. 

 d, e and f are suitable for peach and plum foliage, which are sus- 

 ceptible to burn when full strength mixtures are used. 



2 SODA BORDEAUX MIXTURE. 



Copper sulfate, 4 pounds. 

 Water, 50 gallons. 

 Add enough soda lye to make the mixture alkaline to test paper. 



3 AMMONIACAL COPPER CARBONATE. 



Copper carbonate, 5 ounces. 



Ammonia (26° Beaume'.), 3 pints. 



Water, 50 gallons. 

 Dissolve the copper carbonate in ammonia. This may be kept 

 any length of time in a glass stoppered bottle, and can be diluted to 

 the required strength. The solution loses strength on standing. 



4 COPPER SULFATE SOLUTION. 



(^Sf/ong Solution^) 

 Copper sulfate, i pound. 

 Water, 25 gallons. 

 Applied only on trees without foliage. 



5 COPPER SULFATE SOLUTION. 



( Weak Solution?) 

 Copper sulfate, 2 to 4 ounces. 

 Water, 50 gallons. 

 For trees in foliage. 



