00621nam a2200193Ia 4500001001000000003000500010008004100015010001100056040000900067082001700076100001900093245008300112260005900195300001000254440001900264500003200283650003600315650007600351Para_7436CHAP220125s1926    xx            000 0 und d  a206324  cCHAP  aPA-C 632 B85  aHawlley, I. M.  aThe fruit tree leaf roller and its control by oil sprays  /c by I. M. Hawlley  aLogan , Utah  :b Utah Agricultural Experiment Station  a15 p.  aBulletin ; 196  aEnc. con impresos similares  aArboles futales x enfermedades  aFitopatología x colecciones de escritos  Arboles frutales x plagas