Pest management recommendations in the uplands
- Use pest-resistant rice varieties;
- Use clean, purified, and healthy seeds;
- Observe field sanitation, remove alternate hosts such as weeds;
- Monitor fields regularly for signs and symptoms of pest infestation, population of insect pests vs. natural enemies, damage and plant nutrition assessment; and
- Use pesticides as a corrective measure during pest outbreak.
Rodent Management
- Sanitize fields, implement community rat hunting or install a community trap barrier system (CTBS)
- Use acute rodenticide only during outbreaks.
Weed Control Practices
Some recommended herbicides for upland rice:
- Oxadiazon (Ronstar) at 1 kg a.i/ha (4 L/ha)
- Pendimethalin (Herbadox) at 1.-2.0 kg a.i./ha (3-6 L/ha) to control grasses particularly R. cochinchinensis
- 2,4-D for broadleaf and sedge control
- In areas where Imperata sp. (cogongrass) is a problem, application of glyphosate is recommended
Mulching or ground covering with legume plants can play a very important role in both improving the soil fertility and managing perennial weeds.
