›› 1957, Vol. 7 ›› Issue (2): 167-182.doi:

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PRELIMINARY STUDIES ON THE LIFE HISTORY AND THE CONTROL OF THE WOOLLY APHIS (ERIOSOMA LANIGERUM HAUSMANN)IN TSINGTAO DISTRICT

CHANG YOH1, CHU WEN-HWEI2   

  1. 1. Shantung Agricultural Research Institute;
    2. Tsingtao Frutt Experimental Stallon
  • Online:1957-04-15 Published:1957-04-15