The Use of biopesticide for increasing ginger

The objectives of this research was to study the effect of various biopesticide and their concentration level for increasing ginger yield which were grown under bacterial wilt contaminated soil. This research was conducted at Puspiptek Serpong, Tangerang೴Indonesia. Randomized complete block design with two factors and three replications was used in this research. The first factor was biopesticide type i.e. neem (Azadirachta indica), guduchi (Tinospora rumphii) and garlic (Allium sativum). For comparison, synthetic bactericide (Streptomycin sulphate) was used as positive control while water was used as negative control. The second factor was biopesticide concentration (1.5 g/l, 2 g/l and 2.5 g/l). The result showed that biopesticide type and concentration were not significantly affected the whole variable observed. However, the mean showed that the highest ginger yield performed by garlic (28.73 g/plant) then followed byguduchi (24.80 g/plant), neem (13.04 g/plant), synthetic bactericide as positive control (3.31 g/plant) and water as negative control (all died).