Control Methods and Technical Key Points for Pests and Diseases of Asarum (Wild Ginger)
The main disease is sclerotinia rot, which mainly damages the roots. In the early stage, the base of the root becomes soft and rotting, with white filamentous substances visible, and gradually the aboveground leaves turn yellow, then lodge and die. Spray the leaves or drench the roots with a 500 to 1000 times dilution of 50% carbendazim. The main pest is the black hairy caterpillar, which generally appears in mid to late June. It damages the leaves, and in severe cases the leaves are completely eaten bare. Spray with a 1000 times dilution of dichlorvos or trichlorfon to kill them.
The main disease is sclerotinia rot, which mainly damages the roots. In the early stage, the base of the root becomes soft and rotting, with white filamentous substances visible, and gradually the aboveground leaves turn yellow, then lodge and die. Spray the leaves or drench the roots with a 500 to 1000 times dilution of 50% carbendazim. The main pest is the black hairy caterpillar, which generally appears in mid to late June. It damages the leaves, and in severe cases the leaves are completely eaten bare. Spray with a 1000 times dilution of dichlorvos or trichlorfon to kill them.