Potensi Konsentrasi Beauveria Bassiana Sebagai Agen Hayati Pada Budidaya Tanaman Kubis (Brassica Oleracea L.)

Abstract

The Potential Concentration of Beauveria bassiana as a Biological Agent on Cabbage Plant Cultivation (Brassica oleracea L.)". The risethas been conducted from April 2019 in Salaran Experimental Garden for the field experiment and Plant Physiology Laboratory for the introduction experiment. The method used was a Randomized Block Design (RBD) with seven treatments and four replications. The treatments of Beauveria bassiana concentrations tested were B0 (control), B1 (5 gram/liter), B2 (10 gram/liter), B3 (15 gram/liter), B4 (20 gram/liter), B5 (25 gram/liter), and B6 (30 grams/liter). The parameters observed were the percentage of pest mortality, percentage intensity of damage to cabbage plants, the number of cabbage leaves, the diameter of cabbage stems, and width of cabbage crown. The results showed that Beauveria bassiana concentration of 30 gram/liter is proven by 100% pest mortality rate in 5 days of observation and low damage intensity by 35.14%. The concentration of Beauveria bassiana also showed significant results on growth parameters rather than other concentrations. The growth parameters include the number of leaves of 13.67 pieces, crown width of 43.35 cm and 1.42 cm.