Rice In Sri Lanka - Pests of Rice
Rice sheath mite
Sheath mite can be considered as a serious pest in rice crop causing 5% – 90% yield losses. It is microscopic in size. Sheath mites live in the space between leaf sheaths and feed on the adaxial surface of leaf sheath and developing kernels.
- High infestation at booting stage of the crop can be observed as symptoms of chocolate brown colour lesions on leaf sheaths.
Effective control methods
- Destroy infected stubbles by plugging just after harvesting or by burning.
- Sun drying of seed paddy before soaking.
- Weed management
- Monitor the crop from early booting stage for chocolate color lesions on leaf sheaths.
- Single application of recommended insecticides if the signs have been observed.
- Crop rotation with leguminous crops such a meeng
- Follow the fied for 2-3 seasons if the problem was not controlled with the above measures.