Spray Calendar. 59 



Directions— DissolYe one pound of commercial white arsenic and 

 four pounds of carbonate of soda (washing soda) in two gallons of 

 water, and use one and one-half pints to 50 gallons of bordeaux 

 mixture. The easiest way to make the solution is to put both the 

 Avhite arsenic and carbonate of soda in a gallon of boiling water 

 and keep boiling about 15 minutes, or until clear liquid is formed, 

 then dilute to two gallons. One and one-half pints of this solution 

 should be added to each barrel of full-strength bordeaux mixture 

 for earlier sprayings, and modified bordeaux mixture for late spray- 

 ings, Increasing the arsenite solution gradually from one and one- 

 half pints to one quart as the season advances and foliage matures. 

 If used without bordeaux mixture or lime, it is liable to burn the 

 foliage. As there is nearly always fungus to contend with, it is 

 recommended that the two sprays be combined, with the additional 

 advantage of making the poison stick longer. Unless combined 

 with bordeaux mixture, it is very important to use enough freshly 

 slacked lime to insure the complete decomposition of arsenite of 

 soda and formation of arsenite of lime. Use six to eight pounds of 

 quicklime, freshly slacked, to a barrel of water. 



FOR CODLIN MOTH. 



Paris green or arsenite of lime. First spraying, 10 days after 

 blossoms have fallen, and then at intervals not exceeding three 

 wrecks, up to within three weeks of harvesting the apples or pears. 

 The arsenite of lime is preferably used with bordeaux mixture, and, 

 as the season advances and foliage matures, increase the arsenite 

 solution gradually from one and one-half pints to one quart to the 

 50 gallons of bordeaux mixture. 



FOR TINGIS^, CATERPILLARS, AND SLUGS. 



Spray as they hatch and appear on the leaves. 



TOBACCO WASH. 



Used for green aphis and tingis as they appear on the trees. 



HOW PREPARED. 



Ingredients— TohnQco (sheep dip, sulphured tobacco), four 



pounds. 

 AVhale-oil soap (or good strong soap), four 



pounds. 

 Water, 20 gallons. 



