A Detailed Explanation of the Occurrence Patterns and Control Methods of the Ginger Borer

The ginger borer (also known as the corn borer, belonging to the Lepidoptera order and the Pyralidae family) is a major pest harming ginger. It has a very diverse diet; when causing damage, its larvae bite and feed on tender stems, then bore into the stalk (with frass and insect droppings accumulating at the entry hole), obstructing the transport of water and nutrients, causing the stems and leaves above the bore hole to turn yellow and wilt, and to break very easily under external force.

1. Occurrence patterns. The ginger borer generally produces 3-4 generations per year in our area, and its concentrated damage period coincides exactly with the vigorous growth period of ginger plants. Larvae move between plants to cause damage, and finally overwinter as mature larvae inside the host stalks.

2. Control measures. For agricultural control, strengthen field management: after harvest or before land preparation, clean up and centrally destroy leftover materials such as insect-bored broken plants and dead leaves; during the field growing period, after discovering damaged plants, the affected leaves or aboveground stems can be stripped off and destroyed. The key period for chemical control is after egg hatching and before the newly hatched larvae bore into the stems. Spray dichlorvos or malathion or kuai-sha-ling or decamethrin and other liquid pesticides on the leaf surfaces, or inject the above liquid pesticides into the bore holes to seal and kill the pests.