Elementary principles of agriculture; a text book for the common schools . elementaryprinci00ferg Year: 1908 APPENDIX B INSECTICIDES AND FUNGICIDES Bordeaux Mixture. This is the fungicide used every- where to reduce damage to fruits and vegetables caused by fungi. The proportions in which the substances are mixed are but rarely varied from the following: Copper Sulfate, or Bluestone :. 4 pounds Fresh lime 4 Add water to make about 50 gallons In preparing, use two half-barrels, one for copper sulfate and one for Ume. Fig. 178. The copper sulfate should be pulverized and put in a coarse burlap
Elementary principles of agriculture; a text book for the common schools . elementaryprinci00ferg Year: 1908 APPENDIX B INSECTICIDES AND FUNGICIDES Bordeaux Mixture. This is the fungicide used every- where to reduce damage to fruits and vegetables caused by fungi. The proportions in which the substances are mixed are but rarely varied from the following: Copper Sulfate, or Bluestone :. 4 pounds Fresh lime 4 Add water to make about 50 gallons In preparing, use two half-barrels, one for copper sulfate and one for Ume. Fig. 178. The copper sulfate should be pulverized and put in a coarse burlap sack and suspended in water until dissolved. Use wooden vessels only for copper sulfate. The fresh lime should be dissolved in Aii'T^ /f^ another vessel, using '^^ ^'* ^^^ only a small amount of water at first, adding more as the slaking pro- ''' ' gresses. Care should be ^^-/^< Vl \ \ '''2^}!:'t^} taken to see that the I^i,„t \A iv ' I ' .' Xw '^•''^•^ v lime is stirred into a ^==^=-<«^^'^^ '- very thin batter, free '^ Fig. 178. Making Bordeaux mixture. from even small lumps. It is advisable to strain through a burlap sack, or a copper strainer with eighteen or twenty meshes to the inch. Dilute the milk of Ume and the solution of copper sulfate up to about twenty-five gallons and mix. Do not (279)
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