Bulletin Volume 1-31

Bulletin Volume 1-31

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...from both insects and fungus pests. Only the weakest solution should be used on the peach and plum trees. No. 2.--ARSENITES.--POWDER. Paris green or London purple 1 pound. Flour 10 pounds. Road-dust, lime or coal ashes 20 pounds. Directions.--Mix the arsenite with the other substances. Apply with a bellows, bag or sieve. Discussion.--In this formula the flour is used for its adhesiveness; the dust, lime or ashes as a dilutent only. Wood-ashes are not so good as coal-ashes, since the potash contained in woodashes is like to render the arsenic more or less soluble. The coalashes must be sifted and only the finer part used, and should be as dry as possible. This compound may be applied by a bellows, or it may be sifted on the plants with a common seive or from a tinbucket having the bottom perforated with fine holes, or from a bag of thin or coarse cloth. On a large scale, Paris green has been used dry for poisoning cotton caterpillars without dilution. No. 3.--KEROSENE EMULSION. (a.--Cook's Formula.) Soft Soap 1 quart. Water 2 quarts. Kerosene Oil 1 pint. Directions.--Boil the soap in the water until entirely dissolved. Remove from fire and add the kerosene. Churn the soap solution and oil for ten minutes, or until thoroughly emulsified, or force the oil and soap through" a spraying pump three or four times, spraying it back into the same vessel. When properly done the oil will not separate from the soap after cooling. One-fourth pound of hard soap may be used instead of a quart of soft soap. Dilute the emulsion with its bulk of cold water before using. (b.--Riley's Formula.) Hard Soap pound. Water 1 gallon. Kerosene Oil 2 gallons. BORDEAUX MIXTURE. Copper Sulphate (Bluestone) 4 pounds. Unslaked I.ime 4 pounds. Water 22 gallons....show more

Product details

  • Paperback | 220 pages
  • 189 x 246 x 12mm | 399g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236598466
  • 9781236598462