00556nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067245013500076260005400211300000900265440003900274650006200313700002300375Para_4152CHAP220125s1952    xx            000 0 und d  a202712  cCHAP  aCost and effectiveness of different insect and disease control practices in New York apple orchards  /c H. Von Oppenfeld [et.al.]  aItaca, N. Y.  :b Agricultural Experiment Station  a75 p  aNew York Agri. Exp. Sta. Bull; 886  aAspersión x Efecto en árboles frutales  Insecticidas  aOppenfeld, H. Von.