00459nam a22001817a 4500003000400000020001800004082001600022100001700038245003400055260003800089300001400127546001200141650002900153650002800182650002100210650002500231700002100256OSt  a9789383285808  a632bSTA/PR  aStakman, E C  aPrinciples of plant pathology  aNew DelhibAgri Horti Pressc2018  axi, 581p.  aEnglish  aCauses of plant diseases  aPhenomena of Infection   aChemical control  aResistant varieties   aHarrar, George J