00625nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100001800118245011100136260002800247300002000275650002500295650002700320650001900347650004100366CHAP20220329140057.0971013s1981            r     00010     d  a46635  a47607  a51750  cCHAP  a632.58bT4700aThresh, J. M.  aPests pathogens and vegetation; the role of weeds and wild plants in the ecology of crop pest and diseases  aBoston :bPitman,c1981  a517 p.b: ilus.14aAgriculturaxPlagas.14aEcología agrícola.14aMalas hierbas.14aPlantasxResistencia a enfermedades.