EFEKTIFITAS BEAUVERIA BASSIANA TERHADAP PENGENDALIAN PERKEMBANGAN POPULASI HAMA ULAT GRAYAK (Spodoptera frugiperda) PADA TANAMAN JAGUNG SECARA IN VIVO DAN IN VITRO

ABSTRAC
This research method aims to determine the effectiveness of Beauteria bassiana in
controlling the development of armyworm populations on corn plants in vivo and in vitro.
This research was carried out in a laboratory and greenhouse in the Mojokerto food crop
protection and horticulture work area. The materials used in this research were corn
seeds, young corn, soil, compost, 2nd instar armyworm pest water, Beauveria bassiana
biological agent isolate, potato dextrose agar media, ECG media, distilled water, and
alcohol. This research method was carried out in vitro. The results of this research are
that the entomopathogenic fungus Beauveria bassiana is able to control the population of
the pest S. frugiperda by acting as a stomach poison. Symptoms of death of S. frugiperda
show changes in color and body shape caused by Beauveria bassiana. Further research
will carry out calculations of spore viability if using long-lived isolates, testing is carried
out in line with the observation parameters and observation objectives, additional data
such as temperature, season, humidity also need to be shown.
Keywords: effectiveness, population of armyworm pests, corn plants