This research specifically aims to know and analyze the value of direct contribution of leadership to the pleasure MEMBER OF KELOMPOK TANI in Malang Regency East Java Province. The method of this research is survey method. The location of the research was conducted on Kelompok Tani that was targeted by the UPSUS of Increasing Production of Paddy, Corn and Soybeans in 2017. Research Objects are Farmers who become group leaders and group members who are members of farmer groups who receive assistance UPSUS program to Increasing Production Rice, Corn and Soybean. The results showed that the direct effect of leadership variables on member satisfaction has a significance value greater than 0.05 (0.210), which means no significant effect. The results showed that the direct effect of leadership variables on member satisfaction has a significance value greater than 0.05 (0.210), which means no significant effect. While the standardized value of beta coefficient on t test shows that the magnitude of direct influence of leadership on member satisfaction is equal to 0.115 or rounded to 11%. That is, the high level of member satisfaction can only be influenced by the leadership of 11% while the rest (89%) influenced by other factors outside the model.

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Downy mildew is a disease caused by the fungus Peronosclerospora maydis. Application of biological agents to control downy mildew is a kind of environmentally friendly control method, that widely promoted recently. Trichoderma sp. and plant growth promoter rhizobacteria (PGPR) are root symbionts, which can induce plant resistance against disease infection. This study aimed to determine the effective application of Trichoderma sp. combined with various concentrations of rhizobacteria to control downy mildew. This study used a completely randomized design (CRD) method with 6 treatments and 5 replications. The treatment was the concentration of rhizobacteria consisting of P0 (control) = without treatment, P1= 15 mL L-1. P2 = 30 mL L-1. P3 = 45 mL L-1. P4 = 60 mL L-1 and P5 (positive control) = seed treatment with 5 g kg-1 dimetomorf fungicide. Each rhizobacteria suspension was mixed with Trichoderma sp. solution as much as 15 mL L-1. The parameters observed consisted of plant height (cm), number of leaves, disease incidence (%), and disease severity (%). The results showed that the combination of Trichoderma sp. and rhizobacteria of 60 mL L-1 was able to inhibit the incidence of the disease up to 66.53% and the severity of the disease up to 89.84%. Keywords: bacteria, concentration, downy mildew, sweet corn, Trichoderma sp.