01786nam a2200217 a 450000100080000000500110000800800410001910000200006024501410008026001260022130000100034752010390035765000270139665000270142365300200145070000220147070000230149270000190151570000170153470000170155110132172019-12-18       1999    bl uuuu     u00u1 u    #d1 aSA, L. A. N. de  aStudies for evaluating effects of Bacillus thuringiensis on nontarget egg parasite insect Trichogramma pretiosum.h[electronic resource]  aIn: ZINIU, Y.; MING, S.; ZIDUO, L. ed., Biotechnology of Bacillus thuringiensis. Beijing: Science Press, v.3, 1999.c1999  ap.238  aThis study refers to the evaluation of a bacillus thuringiensis var. kustaki formulation (Btk) on the parasitism capacity and adult emergence of the nontarget egg parasite Hymenoptera Trichogramma pretiosum. The commercial product Dipel from Abbot Laboratorios do Brasil was used at two doses (recommended dosage RD - and inactivated recommended dosage - IDR), and distiled water as control (C). T. pretiosum was maintained and multiplied on the alternative host Anagasta kuehniella. The parasitism capacity was accomplished dipping A. kuehniella eggs in each of the age evaluation T. pretiosum eggs, already parasitized, were deep in the two dosages and the control, separately, and the averages of emergence percentage were larger for C than for the RD and IRD treatments, with no significant difference between RD and IRD. The negative effects detected could be attributed either to the ingridients of the formulation (that formed a physical barrier, covering the eggs) or to a subproduct generated during the inactivation process.  aTrichogramma pretiosum  aBacillus Thuringiensis  aParasite insect1 aCAPALBO, D. M. F.1 aNARDO, E. A. B. de1 aMAIA, A. H. N.1 aARELLANO, F.1 aFUINI, L. C.