Rice stem borer is one of the most common pests affecting rice crops in many agricultural regions of Vietnam. This pest typically attacks rice plants from the tillering stage to the heading stage, directly impacting growth and yield. Of particular concern is that the larvae live inside the rice stem, making them difficult to detect in the early stages.

When infested with stem borers, rice plants often show localized yellowing and wilting, with young tillers turning white or dying prematurely. During the flowering stage, the borers can cause panicle blight, resulting in many empty grains and significantly reduced harvest yield. If not controlled promptly, high pest densities can cause significant damage to entire fields.

To limit stem borer infestation, farmers need to implement a combination of measures such as timely sowing, post-harvest field sanitation, and balanced fertilization. Regular field inspections help detect early signs of damage and allow for appropriate treatment. In cases where the pest density exceeds the damage threshold, pesticides can be used according to the manufacturer's instructions to ensure effective control and environmental safety.

Effective management of rice stem borer not only helps protect rice yields but also contributes to reducing production costs and improving the economic efficiency for farmers.