Stem borer pests, also known as "tana chhedak," are small insects with bodies that range from yellow-brown to white or dirty cream. The larvae of these pests inflict severe damage on rice crops.

Stem borers feed on the inner parts of rice stalks, leading to their appearance as dried out and eventually turning yellow.

Infestation by stem borers impedes the growth of rice plants, causing smaller leaves to wither and die.

The attack by stem borers weakens the rice stalks, making them more susceptible to breaking under the wind.

The damage caused by stem borers allows other pests and diseases to enter the rice stalks, potentially exacerbating crop damage.

Stem borer pests can cause up to 10% damage to rice crops. In severe infestations, the damage can escalate to as much as 80% of the yield.