00530nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100001700076245011900093260004600212300000900258440004800267650005700315Para_3744CHAP220125s1948    xx            000 0 und d  a202179  cCHAP  aBarnes, M. M  aUse of new materials for control of insects and mites on apples and pears in Southern California  /c M. M. Barnes  aCalifornia  :b Citrus Experiment Station  a6 p.  aCalifornia. Citrus Exp. Sta. New Letter; 34  aManzana x Plagas  Pera x Plagas  Control de plagas