Digitized by the Internet Archive in 2011 with funding from LYRASIS members and Sloan Foundation http://www. archive.org/details/spraycalendarOObrit Dina \ OE M (’~ C4 V XA ~ \ onnecticut E. H. JENKINS, Director SPRAY CALENDAR W. E. BRITTON, Entomologist LEAD ARSENATE (Paste) 3 Ibs., or (Dry) 1% Ibs. 50 gals. Water Spray upon foliage to kill all chewing insects. May be used with Bordeaux or with lime-sulphur mixture. PARIS GREEN 1 Ib. Paris Green 3 Ibs. Lime 100 gais. Water Spray upon foliage to kill potato beetle, elm leaf beetle, and all biting insects. Com- monly used with Bordeaux mixture, NICOTINE SOLUTION 4% pt. in 50 gals. Water Several solutions are now sold containing 40% or more of nicotine. Excellent for killing aphids and other sucking insects. Add soap for a spreader. Winter Spray 1 part L. and S. 9 parts Water INSECTICIDES COMMERCIAL LIME-SULPHUR Summer Spray 144 to1% parts L. and S. 45 to 50 parts Water Use winter spray for San José scale and peach leaf curl ; summer spray for fungi, to which, as needed, add lead arsenate to kill chewing insects. ~FOQRALTE A FORMULAS xperiment tation NEW HAVEN, CONN. FUNGICIDES BORDEAUX MIXTURE 4 lbs. Copper Sulphate 4 Ibs. Fresh Lime 45 to 50 gals. Water Dissolve the copper sulphate in hot water or from a coarse bag suspended in cold water; slake the lime separately and strain. Dilute the latter to about 20 gals., into which pour the copper sulphate diluted to about 20 gals., stirring the mixture; dilute further to form the forty-five or fifty gallons ; or dilute each to 25 gals. and pour together into barrel. Stock solutions of the copper sulphate and lime, rate, 1 lb. to x gal. water, can be made separately and used as needed. TH FHIS & BULLETIN 183 G. P. CLINTON, Botanist SELF-BOILED LIME-SULPHUR 8 Ibs. Fresh Whitewash Lime 8 Ibs. Fine Sulphur 45 to 50 gals. Water Start the lime slaking, sift and thoroughly stir in the sulphur, using just enough allow to boil from heat of lime for fifteen minutes. Then dilute and apply. FORMALIN A. 1pt.(rlb.) Formalin in so gals. water for grain smut. B. 1 pt. Formalin in 30 gals. water for potato scab. C. x pt. Formalin in 12% gals. water for soiltreatment. Use two thirds to x gal. for each square foot of surface treated; cover for 24 hours atter treatment; air after- wards, and stir soil, allow 7-10 days before seeding and 10-14 days before transplanting in this soil. 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