| Popis: |
[TESTING THE CONCENTRATION OF FUNGI Beauveria bassiana (Bals.) ON MORTALITY OF POD BORER ( Riptortus linearis F . ) ON SOYBEAN]. To control pod borer ( Riptortus linearis F). on soybean using chemical insecticides can cause pollution to the environment, kill non-targeted insects and evolve pest resistance. The use of entomopathogenic fungus is an environmentally friendly alternative, one of which is Beauveria bassiana . (Bals.) . The purpose of this study was to obtain an effective concentration of Beauveria bassiana fungi that can kill the pod borer at the 50% level. The study was arranged in a Completely Randomized Design (CRD) consisting of 6 levels of fungi and 3 replications, where each experimental unit used 2 polybags. Each treatment unit used 10 pod borers. The concentration of B. bassiana consisted of 10 5 , 10 6 , 10 7 , 10 8 and 10 9 conidia / mL, and without fungi application as a control. The results indicated that the treatment of B. bassiana concentration on R. linearis significantly affected the percentage of mortality and the number of infected R. linearis , but no significant effect on the time of death, number of pods/plants and percentage of the number of damaged soybean pods. The mortality of R. linearis is classified as low, that is, less than 50%. |
