00559nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100001800076245015200094260002300246300001000269650003100279650003300310650004600343Para_6738CHAP220125s1983    xx            000 0 und d  a205546  cCHAP  aMihm, John A.  aEfficient mass-rearing and infestation techniques to screen for host plant resistance to fall armyworm :b Spodoptera fugiperda /c by John A. Mihm  aMéxico :b CIMMY  a16 p.  aEntomología económica   aGusano cogollero del maíz   aMaíz x variedades resistentes a plagas