00580nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100001800076245017200094260006200266300001000328440004100338650004300379Para_4614CHAP220125s1926    xx            000 0 und d  a203095  cCHAP  aMarcovitch, S  aSupplementary investigations of the fluosilicates as insecticides :b with observations on the effect of heat and drought on the mexican bean beetle  /c S. Marcovitch  aKnoxville, Tennessee  :b Agricultural Experiment Station  a13 p.  aTennessee. Agri. Exp. Sta. Bull; 134  aEpilachna varivestis  Frijol x Plagas