00996cam a22002771a 4500001001300000003000400013005001700017008004100034010001700075035001900092040005400111042001200165050002300177070002200200072002100222100003900243245008600282260005200368300003400420490007700454500001900531504003000550650002400580650003400604830008000638agr55000129 DLC20260227111018.0790813s1955    dcuab    b   f000 0 eng c  aagr55000129   a(OCoLC)5267752  aU.S. Dept. of Agr. Libr.cNSbSUdNSbSUdDNALdDLC  apremarc00aS21b.A72 no. 11070 a1bAg84Te no.11070 aF821aL001aL3001 aWallis, R. L.q(Robert L.),d1902-10aEcological studies on the potato psyllid as a pest of potatoes /cby R.L. Wallis.  aWashington :bU.S. Dept. of Agriculture,c1955.  a24 p. :bill., maps ;c23 cm.1 aTechnical bulletin / United States Department of Agriculture ;vno. 1107  aCaption title.  aLiterature cited: p. [25] 0aJumping plant-lice. 0aPotatoesxDiseases and pests. 0aTechnical bulletin (United States. Department of Agriculture) ;vno.  1107.