Occurrence and control of ginger borer, Chilo suppressalis

Ginger borer (also known as corn borer, belonging to Lepidoptera, Pyralidae) is the main pest harmful to ginger. Its feeding habits are very miscellaneous, and when it is harmful, it bites the tender stem with larvae, and then drills the stem (there are decay chips and insect dung accumulation in the hole), which hinders the transport of water and nutrients, making the stems and leaves above the wormhole withered and withered, and it is very easy to break when there is an external force.

1. Occurrence regularity. Ginger borer generally occurs 3-4 generations a year in our land, and the concentrated damage period coincides with the vigorous growth period of ginger plants. The transformation of the larvae was harmful, and finally the mature larvae overwintered in the stem of the host.

2. Prevention and control measures. Agricultural control is to strengthen field management, after harvest or before soil preparation, the remains such as broken plants and dead leaves are cleaned up and centrally destroyed; after insect pests are found in the field growth period, the relevant leaves or aboveground stems can be removed and destroyed. The key period of chemical control is after hatching and before the ant borer is eaten. Foliar spraying of dichlorvos or malathion or Kuaishaling or enemy killing solution can also be used to inject the above solution from the wormhole.