. The commercial apple industry of North America. ulfur. (Approx.) Cost of 100 lbs, active sulfur. Amount equiva-lent to 1 gallonlime-sulfursolution. Lime-sulfur solution (33 B.)Average retail price $ 26% 57%55% $$$ 1 gallon lbs. Average retail price $ (dry) Average retail price $ cwt. Spreaders for the different insecticides. The use of spreaders in securing a more uniform coatingof spray is attracting considerable interest among experi-menters and fruit-growers. Three socalled spreaders aremore or les
. The commercial apple industry of North America. ulfur. (Approx.) Cost of 100 lbs, active sulfur. Amount equiva-lent to 1 gallonlime-sulfursolution. Lime-sulfur solution (33 B.)Average retail price $ 26% 57%55% $$$ 1 gallon lbs. Average retail price $ (dry) Average retail price $ cwt. Spreaders for the different insecticides. The use of spreaders in securing a more uniform coatingof spray is attracting considerable interest among experi-menters and fruit-growers. Three socalled spreaders aremore or less well known: (1) Glue — 1 to 2 ounces to 50 gallons. (2) Flour paste — 2 pounds flour reduced to paste, to 50 gallons of water. (3) Soap—2 pounds liquid soap to 50 gallons of water. Other soaps such as fish-oil, rosin orcommon laundry soap may be used at the samerate. i The use of soap with nicotine solutions is generally >accepted as highly beneficial. Soap should not be usedwith lime-sulfur, however, but is compatible with arsenate. Platk X\ .— i pper, The tent caterpillar, nest and young cater-pillars on wild cherry; frequently found in the apple. Lower,Kosy apple aphis and its effect on the foliage and fruit of theapple. Diseases and Pests of the Apple and Their Control 247 of lead and is highly recommended in combination withBordeaux. The other spreaders named, glue and flourpaste, are being used with arsenicals, but their status hasnot yet been definitely determined. It is thought thatthey may increase the spreading tendencies and effect amore uniform coating of these arsenic stomach poisons. FUNGICIDES Lime-sulfur has been treated on the preceding pages, asit is both an insecticide and fungicide. Bordeaux mixture.— The standard formula for Bor-deaux mixture is as follows: Copper sulfate (bluestone) 4 pounds Fresh stone lime 4 pounds Water 50 gallons Dissolve the bluestone and slake the lime separately withwater. Bluestone may be conveniently dissolved by pl
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