Evening Republican, Volume 17, Number 103, Rensselaer, Jasper County, 30 April 1913 — A Peach Fungicide. [ARTICLE]
A Peach Fungicide.
Self-boiled lime-sulphur is the standard epray for the control of the brown rot and scab of the peach. Peach foliage is very susceptible to spray injury and the application of even weak Bordeaux or dilute commercial limesulphur is often attended by disastrous results. Owing to the ease with w hlch the concentrated lime-sulphur may be obtained and diluted ready for use, it has been rather widely employed by many peach growers as a summer spray, the common dilution being 1 to 50. Experience has shown that such a spray is unsafe and while it succeeds at times, at other times complete defoliation of the tree follows. Making Belf-Bolied Llme-Bulphur. The most satisfactory recipe for making the self-boiled lime-sulphur is the 8-8-60 formula, L e., 8 pounds of fresh stone lime, 8 pounds of flour of sulphur or any finely divided form of sulphur, and 60 gallons of water. Enough water is poured upon the lime to cover it, and while the lime is slaking the sulphur is sifted over it The mixture should be constantly stirred, adding water until a thin, even paste Is secured. With good fresh lime which slakes and becomes very hot
the boiling should be stopped by the time the lime is slaked, by adding cold water. This is to prevent the formar tion of sulphides which would injure the foliage. Some limes generate very little heat in slaking and require more time. The mixture gfter straining is ready to dilute and apply. The larger the quantity which can be made up at a time the better will be the results, as the heat from the lime will be more effective. Thus it is preferable to make 200 gallons at a time by using 32 pounds each of lime and sulphur. Bpray Schedule, Dormant Spray—ln March spray with concentrated lime-sulphur diluted to test five degrees Baume, *hy» drometer reading. Controls scale Insects and leaf curl. First Summer Spray—When the "Shucks" are shedding* spray with > pounds of lead arsenate and I pounds of lime to 50 gallons of water. Controls the curculip. Second Summer Bpray—Two weeks after first with self-boiled lime-sulphut and 2 pounds of anenate to every 60 gallons of wash. Controls curcullo, scab and brown rot Third Bummer Spray—For late ripening varieties as Beers Smock; may| be omitted for varieties which ripea 1 with Elberta or earlier. One month after the second spray and with same materials. Controls curcullo, s«ab and brown rot. Fourth Bummer Spray—One month before the fruit ripens with self-boiled lime sulphur and arsenate as above Controls curcullo, scab and brown rot. •This Instrument may be ordered through any drug or hardware store and costs about one dollar. Direction* for diluting lime-sulphur will be Cm* warded on applloatfoOL
