Effects of Tenebrio molitor L.Powder on Growth of Beauveria bassiana

[Objective]The study aimed to research Tenebrio molitor powder on the growth of Beauveria bassiana.[Method]The powder of Tenebrio molitor larva was used as the addctive and was added to the PDA medium according to 7 kinds of conc.of 4,2,1,0.5,0.25,0.125 and 0.062 5 g/100 ml,with the medium without adding any T.molitor larva as the CK.The indexes such as the growth rate,spore germination rate,hyphal diameter,sporulation time,sporulation amount and POD activity in B.bassiana were determined.[Result]Adding T.molitor larva to the PDA medium could increase the growth rate,spore germination rate,sporulation time,sporulation amount and POD activity in B.bassiana,but had little effect on the spore size and hyphal diameter.The comprehensive evaluation and the screening showed that the adding amount of 4 g powder T.molitor larva to the medium could get optimum growth of B.bassiana and their indexes all had obvious predominance.[Conclusion]The study provided the theoretical basis for using T.molitor to culture B.bassiana.