From the results of the study, the study of biological fermentation of juice from the product flow, red tail, and unto tobacco to control snail numbers (Ovachlamys fulgens (Gude)) were developed to study and compare the appropriate concentration of bio-fermentation. The tail has a flow of red rose Te non (Rotenone). The product also the substance Raja (Anthraquinone) and first-rate non in tobacco is nicotine (Nicotine) can help to stop and eliminate pests by water to ferment that made coming trial. In the trial, snail, one aged 10 – 15 days at a time, 5 biological fermentation of water containing 10 ml concentration per 100 ml 300 ml water quantity by changing the concentration of 20 ml, 30 ml, 50 ml and a contaminated water. When you count the snail, one that occurs within the kalamang. I found that the concentrations of 50 ml of water and mix no formula can eliminate snail, but the formula doesn't mix water able to eliminate more than snail from the results it can conclude that the effect of the water efficiency bio-fermentation in order to get rid of the snail is a piece of water biological fermentation is not mixing.
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