k 



The Bulletin, 31 



one uses considerable quantities of tlie mixture, it is well to have a large 

 funnel strainer made, fitted witli two nettings, one of iron wire window- 

 screening and the other with much finer gauze, preferably of brass. 

 Having strained the poisoned mixture, it is ready to apply. 



SELF-BOILED LIME-SULPHUK WASH. 



The tests of the United States Department of Agriculture indicate 

 that this is the best material to use on peaches in all treatments when 

 there is fruit or foliage on the trees. Some of our growers use it on 

 apples instead of Bordeaux or commercial washes. The slaking lime 

 does the boiling, no fire being used in boiling the wash itself, though hot 

 water is used to start the slaking of the lime. 



Stone lime (unslaked) 8 pounds. 



Sulphur 8 pounds. 



Water (to make) 50 gallons. 



Arsenate of lead 3 pounds.. 



Place the lime in tub or barrel and pour over it enough water to cover 

 it (preferably hot). Put in the sulphur (lumps first crushed) and add 

 another bucket of water. As the mass boils from the slaking of the lime 

 stir it, add more hot water as needed to form a thick paste at first, and 

 then gradually a thin paste. A sack or blanket over the barrel helps to 

 keep in the heat. When the boiling is all over add water (cold is all 

 right) to make 50 gallons, stir thoroughly and strain it carefully.* 



Adding the Poison. — Dissolve the arsenate of lead paste in enough 

 of the solution to make it liquid, then stir it into the whole solution, and 

 you are ready to spray. 



WHAT POISON— AKSEN"ATE OF LEAD OR PARIS GREEN? 



Throughout the State as a whole Paris Green is the poison most com- 

 monly used against insects. Its use is so common that everybody is 

 more or less familiar vdth it, and it can be bought in almost every vil- 

 lage. As a rule, it does reasonably well, and can be used as the poison 

 in spraying, at the rate of about 1-2 pound to a barrel of the spraying 

 liquid. 



But in recent years Arsenate of Lead has come into great favor, and 

 all experience shows it to be so much better than Paris Green that we 

 unresitatingly give it first choice. The relative merits of the two may 

 be expressed as follows : 



Paris Green is more commonly known, is easier to get, costs less for 

 the amount needed ; but it is more likely to "burn" the leaves and fruit, 

 it settles to the bottom of the liquid quickly unless constantly stirred, 

 and does not give so good results. Use about 1-2 pound to 50 gallons. 



Arsenate of Lead is less known, is not so commonly sold, costs more 

 to make the needed treatments; but it does not "burn" the leaves or 



•Directions adapted from W. M. Scott and A. L. Quintance, Cir. No. 120, Bur. Entomology, U. S. 

 Dept. Agriculture. 



