00423nam a2200145Ia 4500008004100000100002100041245009600062260003200158300001000190650002000200650001000220650001000230650001800240650001900258220216s9999    xx            000 0 und d  aRamakrishnan T S 0aPowdery mildew of rubber caused by Oidium Heveae Steimann and its occurrence in South India  bRubber Board Bulletinc1957  a6-Mar  aDisease control  aHevea  aIndia  aOidium Heveae  aPowdery mildew