GROWTH OF THE FUNGUS Beauveria bassiana VUILL. ON CORN EXTRACT MEDIUM AND ITS EFFECTIVENESS TO BROWN PLANTHOPPER

By: Endah Irmayanti, Herminanto, and Eko Pramono
Agrotechnology Study Program Faculty of Agriculture UNSOED
Email: hermin06@gmail.com

ABSTRACT
A research has been conducted to know effects of corn extract medium on sporulation and viability of the fungus B. bassiana and its effectiveness for controlling the brown planthopper Nilaparvata lugens. The results performed that propagation of the fungus B. bassiana in the liquid medium of corn extract harvested in a week produced 2.33 x 10^13 conidia/ml, whereas in the solid medium harvested in a month produced 1.15 x 10^13 conidia/ml. The viability of the fungus living in such liquid medium was greater than in the solid medium. This fungus living in the liquid medium could kill the target pest up to 52.50% at the field condition. The last nymphal instar of the pest seemed to be the most vulnerable to the entomopathogenic fungus.
Key words: Beauveria bassiana, brown planthopper