What Is Rice Stem Borer?
The rice stem borer (Chilo suppressalis) is a destructive pest that lives inside rice stems. Adult moths lay eggs on the plant, and after hatching, the larvae burrow into the stem where they feed and grow. This disrupts the plant’s vascular system and hinders nutrient transport, leading to plant weakening and yield loss.
Types of Stem Borers
There are four common types of stem borers found in rice fields: yellow stem borer, white stem borer, pink stem borer, and brown-striped stem borer. In the Mekong Delta region, the yellow stem borer and brown-striped stem borer are the most prevalent and damaging.
Signs of Rice Stem Borer Damage
Rice stem borers usually attack during the active tillering stage and again at flowering. Common symptoms include:
Deadheart: Young tillers suddenly wilt and collapse during the vegetative stage.
Whiteheads: During panicle emergence, stems damaged by borers cause the panicles to turn white and fail to produce grain.
Internal stem feeding often results in yellowing leaves, stem weakness, and poor nutrient transport. Minh Long Agro
How to Effectively Manage Rice Stem Borers
1. Cultural and Field Practices
✔ Choose healthy, vigorous rice varieties that are more tolerant to pests.
✔ After harvest, destroy rice stubble where pupae may hide — burn straw or plow the field and flood it to reduce pest carryover.
✔ Avoid excessively dense sowing — proper spacing makes crop care easier and reduces pest habitat.
✔ Maintain balanced fertilization; avoid overuse of nitrogen fertilizer which can increase plant susceptibility.
✔ Scout fields regularly to detect early infestation and determine the best spray timing. Apply control measures when larvae are young for maximum effectiveness.
2. Chemical Control Solution with Gecko 240SC
A recommended product for controlling stem borers is GECKO 240SC, formulated with chlorfenapyr 240 g/L. This insecticide works through ingestion and contact toxicity, disrupting nerve cell function in insects. It acts rapidly and is less prone to wash-off by rain, making it effective against multiple rice pests such as leafrollers, stem borers, rice caseworms, and brown planthoppers. Minh Long Agro
Suggested dosage: 0.3–0.4 liters per hectare.
Conclusion
Proper management and control of rice stem borer significantly help farmers save time and production costs while increasing yield. Early detection and integrated pest management practices — combining field hygiene, cultural methods, and effective products like GECKO 240SC — will lead to healthier crops and better harvest outcomes. Minh Long Agro
📞 For more effective pest solutions and advice, visit the product page or contact the Minh Long Agro hotline at 1900 8982.
MINH LONG AGRO CO., LTD.
📍 Address: 137 Tran Xuan Soan Street, Tan Thuan Ward, Ho Chi Minh City
📞 Hotline: 1900 8982
🌐 Website: www.minhlongagro.com
