An introduction to agriculture . MAKING BORDEAUX MIXTURE The two men pour together the diluted lime milk and the bluestone solu-tion into a barrel or spray tank and stir well.— United States FarmersBulletin 243. solution to prevent injury to the foliage. Paris greenis cheaper than lead arsenate and therefore is stillused extensively on potatoes. Paris green is sold onthe market in a pure form, and very often, mixed withlime. One pound of the powder is often mixed with20 pounds of flour, and this mixture is then used to?dust plants. Used in this way, also, it is very green and
An introduction to agriculture . MAKING BORDEAUX MIXTURE The two men pour together the diluted lime milk and the bluestone solu-tion into a barrel or spray tank and stir well.— United States FarmersBulletin 243. solution to prevent injury to the foliage. Paris greenis cheaper than lead arsenate and therefore is stillused extensively on potatoes. Paris green is sold onthe market in a pure form, and very often, mixed withlime. One pound of the powder is often mixed with20 pounds of flour, and this mixture is then used to?dust plants. Used in this way, also, it is very green and lead arsenate are the best insecticides SPRAYING SOLUTIONS 209 for all insects such as the codling moth or apple worm,potato beetles, cabbage worms, curculio, tent caterpillar,fall web worms, and other leaf eating TOO LATE TO SPRAY Courtesy of the Iowa State Department of Public Instruction. 205. Controlling Sucking Insects.—Sucking in-sects have beaks, or slender tubes, with which theypierce plant tissues and suck the juices from the must be killed by covering their bodies with a solu-tion, or a powder, which, on coming into contact withthem, closes their little breathing pores; they die of suf-focation as a result. Common sucking insects are plantlice, scale insects, and squash bugs. Kerosene Emulsion: — Soap, Vo water, 1 gallonKerosene, 2 gallons. 210 AN INTEODUCTION TO AGRICULTUKE To prepare kerosense emulsion tlie soap is cut intoslices and dissolved in the soft water by boiling. Thesolution is then removed from the fire and the keroseneis addedj either by means of vigorous stirring, or bypumping back and forth with the spray pump. This
Size: 1871px × 1335px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
