Use of Herbal Fermented Water to Control Aphids and Support Growth in Latuca Saivar ‘Green Oakleaf’

Abstract

Application of herbal fermented water to control aphids and support growth in green oak salad contained with four different formulas of herbal fermented water, formula 1 (neem, tuba root, marigold, chili), formula 2 (heart leaved moonseed, siam weed, garlic, pepper), formula 3 (heart leaved moonseed, siam weed, garlic, sugar apple) and formula 4 (heart leaved moonseed, chili, garlic, marigold). Each formula contained with 1 kg of herb, 2 kg of sugar and 20 liters of water. The use rates of herbal fermented water are 0, 10, 20, and 50 ml/L. The result found that spraying different formulas and the rates of herbal fermented water had no significant effect on the percentage of aphid deaths. Formula 3 tended to give the highest percentage of aphid deaths at 36.58%. The rate of 50 ml/L tended to give the highest percentage of aphid deaths at 72.32%. When applying formula 3 at a rate of 50 ml/L sprayed at various frequencies. It was discovered that applying a spray every 2 days could lower the number of aphids per plant at 0.67 no./plant. The result of the formula of herbal fermented water had no significant effect on growth of green oak. Formula 3 tended to give the highest total fresh weight (33.26 g/plant) and total dry weight (1.37 g/plant). While, the rates had a significant effect on total fresh weight, total dry weight and root dry weight of green oak. The rate of 50 ml/L gave the highest total fresh weight (31.65 g/plant), total dry weight (1.98 g/plant) and root dry weight (0.41 g/plant). This result indicated that the rate of spraying had an effect on growth and yield higher than the formula of herbal fermented water.