1862 



ENCYCLOPEDIA OP PRACTICAL HORTICULTURE 



the spray tank. In large operations it 

 is best to prepare stock solutions of both 

 blnestone and lime. The bluestone may- 

 be dissolved at the rate of one pound 

 per gallon of water. The lime may also 

 be slaked, but not too far in advance of 

 the time necessary to use it. By having 

 a sufficient number of barrels for stock 

 solutions, one man can easily keep three 

 or four power spray outfits supplied with 

 the Bordeaux mixture. An elevated plat- 

 form upon which the mixing may be done 

 will save a great deal of time. As little 

 hand labor as possible should be the rule, 

 and all that should be necessary in a well- 

 appointed mixing plant should be simply 

 opening and closing valves or gates. A 

 scale to weigh the materials used should 

 be a necessary part of the equipment. 



Carbolated Lime 



This may be used for root maggots. 

 Work the mixture into the soil. 



Lime (unslakecl) 10 lbs 



Carbolic acid (crude) lto2pts 



Water 50 gals 



Slake the lime with a little water, add 

 the rest of the water and the carbolic 

 acid. 



Hellebore 



Hellebore i oz 



Water 2 ^als 



This is valuable as an insecticide for 

 use on vegetables which are almost ready 

 for market and on which arsenicals can- 

 not be used. 



O'GARi 



Paris Gfreen 



If lead arsenate cannot be had, Paris 

 green may be used as follows: 



Paris green^ lo ozs 



Air-slaked lime 2 lbs 



Water 100 gal's 



First slake the lime, stir the poison 

 into a thin paste with a little water, add 

 this to the lime, then strain the mixture 

 through a sieve into a tank containing 

 the required amount of water. If it is 

 desired to spray for both fungi and in- 

 sects on peaches or other tender foliage, 

 200 gallons of water should be used. It 

 is necessary to keep this mixture well 

 agitated while spraying. 



As a dust Paris green is mixed as fol- 

 lows: 



Paris green 5 ozs. 



Air-slaked lime 1 ib. 



The Paris green and lime are thorough- 

 ly powdered, mixed and dusted upon the 

 plants through a muslin bag or by means 

 of a blower. 



In combination with Bordeaux mixture 

 or lime-sulphur add eight ounces of Paris 

 green to every one hundred gallons of the 

 diluted spray. 



ESSIG 



Eesin-Bordeaux Mixture 



This is the standard spray for black- 

 berries, raspberries and other cane fruits. 



Resin 1 lb 



Sal soda crystals % lb 



Water ^/2 gal 



Boil together until a clear brown color 

 appears; then add the above to each 50 

 gallons of Bordeaux mixture made ac- 

 cording to the 5-5-50 formula, given above. 

 The reason for using the resin mixture 

 is to cause the Bordeaux to spread and 

 adhere better. The Resin-Bordeaux 

 should be applied with a good spray 

 pump and a nozzle giving a very thin 

 fine mist spray. Keep the mixture well 

 agitated, and before using remember that 

 it should be carefully strained so as to 

 keep out all material which would tend 

 to clog the nozzle. 



0'G4RA 



Zinc Arseaite 



Zinc arsenite 2 to 6 lbs 



Water 200 gah. 



A powerful poison for resistant insects, 

 as the tussock moth, or for early spray- 

 ing for canker worm and codling moth 

 in the dry interior climates. 



EssiG 

 FUFOICIDES AFD COIfTACT HVSECTI- 

 CIBES FOR SUCKI]V€} IIVSECTS 

 Liquids 



Lime-sulphur is easily the most im- 

 portant insecticidal spray now used and 

 its fungicidal properties make it even 

 more useful to the orchardist It is 

 especially valuable for controlling scales, 

 insects and fungi on deciduous fruit 

 trees, though if properly weakened it 

 may also be used as a summer spray, 

 particularly for the citrus and almond 

 spiders. 



Formerly lime-sulphur spray was a 

 home-made product, but today the com- 

 mercially prepared product is so supe- 

 rior to the home-made mixtures that the 

 latter have almost ceased to exist. 



BSSIG 



The Iron Snlphide Spray 



This is the standard spray for apple 

 and rose mildew. The following formula 

 is for summer use, or after the buds have 

 opened. 



Iron sulphate (copperas) 1 lb 



Lime-sulphur (32 degree Beaume 



„ test) 1 qt 



Water 10 gals 



Dissolve the iron sulphate in about five 

 gallons of water and add the quart of 

 lime-sulphur, stirring well Let the black 

 precipitate settle for a few hours and 

 pour off the liquid, keeping the precipi- 

 tate. Then add five gallons of water, 

 stir thoroughly, and let settle again. Pour 



