Abstract :
This study aims to determine the effect of fungal applications Aspergilus niger as a biological agent for controlling soybean pod sucking pests (Riptortus linearis F) in soybean cultivation. This research was conducted for 3 months from February to April 2021. All of these activities were carried out in Sumberjati Village, Silo District, Jember Regency. This study used a non-parametric test with a comparison of two treatments consisting of the fungus Aspergillus niger and the insecticide alphamethrin. The concentration used on the fungus Aspergilus niger was spore density 10? while for the insecticide alphamethrin concentration was 2 ml/l. Analysis of the data using the SPSS application with the Mann-Withney test and to determine the correlation using a simple linear regression test. The results showed that the intensity of attack on thetreatment Aspergillus niger was 3,14% and the intensity of attack on the insecticide alphamethrin was 2,85% which means thet the two treatments are not significantly different. The correlation between attack intensity and yield showed a low effect, withtreatment Aspergillus niger at 10% and in the insecticide alphamethrin treatment at 6%. Keywords: Alphamethrin insecticide, Aspergilus niger, Riptortus linearis F, Soybean.