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The relation of woolly apple aphis to perennial canker infection with other notes on the disease

The relation of woolly apple aphis to perennial canker infection with other notes on the disease
Paper図書
[by Leroy Childs]Agricultural Experiment Station, Oregon State Agricultural College1929
Other Libraries in Japan
  • Author HeadingChilds, Leroy

The occurrence and prevention of calyx injury in apples from the Hood River Valley

The occurrence and prevention of calyx injury in apples from the Hood River Valley
Paper図書
[by Henry Hartman, Leroy Childs, and R.M. Robinson]Agricultural Experiment Station, Oregon State Agricultural College1929
Other Libraries in Japan
  • Author HeadingHartman, Henry Childs, Leroy Robinson, R. H. (Reginald Heb...

Perennial canker of apple trees : a preliminary report

Perennial canker of apple trees : a preliminary report
Paper図書
by S.M. Zeller and Leroy ChildsOregon Agricultural College1925
Other Libraries in Japan
  • Author HeadingZeller, S.M. Childs, Leroy

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