Pests / Diseases of Curcuma zedoaria

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 By: Bambang Djanuwardi

In planting Curcuma zedoaria  there are pests that can cause health problems such plants wilt disease caused by the bacterium Ralstonia solanacearum. Plants are attacked by bacteria Curcuma zedoaria this will cause leaf yellowing symptoms, and then will roll.The rhizome will wringkling and stinging stink. To avoid or reduce the potential for these bacteria attacked, the seed crop should be taken from healthy plants. Use of antibiotics or pesticides botanical formula made from ginger or gambier flour.
Other diseases that may attack is leaf spot, which causes of Phyllosticta sp. As a result of this disease the leaves become dry, impaired photosynthesis and plant becomes stunted. How to overcome can be done with the selection of seeds from healthy plants, or use a clove oil concentration of 10%. Another pest is the flea Aspidiella hartii shield, which attacks the roots are either on planting or in storage, causing the surface of the rhizome white spots. For rhizome in storage can be done by fumigation with metyl bromide (not recommended) or aluminum phosphide. For seeds can be  treated with hot water to 50 degrees Celsius for 10 minutes, or use insecticide carbosulfan (2ml / L), or with botanical insecticides such as extracts mambas meal 2.5% and 2.5% range.
With the diversity of plant pest, it is more important is prevention by starting with the selection of good seeds and derived from healthy plants, so avoid the congenital disease.