00728nam a2200217Ia 4500001001000000003000500010008004100015010001100056040000900067082002100076100001600097245016500113260005000278300000900328440002000337500004000357650002300397650004200420650003000462700001800492Para_3721CHAP220125s[199    xx            000 0 und d  a202156  cCHAP  aPA-C 632.951 S67  aEwart, W. H  aImportant factors to consider in the use of DDT for the control of citrus thrips and citricola scale in central California in 1947  /c W. H. Ewart, Paul DeBach  aRiverside, Cal.  :b University of California  a4 h.  aNews letter; 30  aEncuadernado con impresos similares  aDDT (insecticida)   aInsecticidas x Efecto en cítricos   aInsecticidas x toxicidad  aDe Bach, Paul