00955cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001900092040002400111042001200135050001700147082000800164100003300172245012400205250001300329260003300342300003100375500009700406504010300503650001600606650001800622700004900640agr51000552 DLC20260227111016.0750612s1951    nyua     b    000 0 eng    aagr51000552   a(OCoLC)1387721  aDLCcFMdOCoLCdDLC  apremarc00aSB951b.H837  a6321 aHough, Walter Seneff,d1893-10aSpraying, dusting, and fumigating of plants;bprinciples and applicationsc[by] Walter S. Hough [and] A. Freeman Mason.  aRev. ed.  aNew York,bMacmillan,c1951.  aix, 726 p.billus.c22 cm.  aRev. and enl. ed. of A. F. Mason's Spraying, dusting, and fumigating of plants, issued 1928.  aBibliographical footnotes.  "Sources of materials and equipment used in plant protection": p. 699. 0aPesticides. 0aInsect pests.1 aMason, Albert Freeman,d1891-ejoint author.