Horticulture, a text book for high schools and normals, including plant propagation; . dissolved in water,as described in making one ofthe stock solutions for Bor-deaux mixture, is a splendidfungicide to be used whenplants are in the dormant con-dition. It will destroy manyspores, and thus prevent muchof the growth of the diseasewhen sprmg arrives. Dissolve one pound of theblue crystals of copper sulfatein about twenty-five gallonsof water. This is particularlyvaluable in peach orchards toprevent peach leaf curl. Itwould be used in orchards which had been affected by this dis-ease the precedin
Horticulture, a text book for high schools and normals, including plant propagation; . dissolved in water,as described in making one ofthe stock solutions for Bor-deaux mixture, is a splendidfungicide to be used whenplants are in the dormant con-dition. It will destroy manyspores, and thus prevent muchof the growth of the diseasewhen sprmg arrives. Dissolve one pound of theblue crystals of copper sulfatein about twenty-five gallonsof water. This is particularlyvaluable in peach orchards toprevent peach leaf curl. Itwould be used in orchards which had been affected by this dis-ease the preceding year. Use before buds swell in spring. Livers cf Sulfur.—Chemical name potassium sulfide. Dissolvethree ounces of the powder in ten gallons of water. Stir wellbefore using. It is a specific against mildew on plants ingreen houses. Out of doors it is often used on roses and otherornamentals. Potassium permanganate is used experhnentally for these, oneounce to ten gallons of water. Rain washes both off quickly and tomake them effective the spraying should be done on a clear Fig. 214.—An elevated platform for mixingBordeaux and other spray materials. Two bar-rels may be used for stock solutions and othersfor the dilute mixture. The extension troughaids in filling the spray tank which is haulednear the platform. (Indiana Station.) SPRAY MATERIALS TO PREVENT DISEASE 307 Ldme-sulfur.—This preparation is used abundantly in the controlof San Jose scale, either as a winter spray or as a summer spores of fungous diseases are largely killed when this spray isapplied. If orchard trees, for example, are sprayed with lime-sulfur during the winter the spores with which the spray comes incontact are killed. This aids materially in the reduction of thedisease during the following growing season. There are several fonns of lime-sulfur prepared. The homeboiled concentrated lime-sulfur (Fig. 215), the commercial lime-sulfur, the self-boiled lime-sulfur and the commercial dr
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgardeni, bookyear1922
