Study on the control effect of nitrogen-modified atmosphere combined with oxygen scavengers against Ephestia elutella

To assess the impact of different nitrogen volume fractions and oxygen scavenger doses on the mortality of Ephestia elutella.

This study investigated the control efficacy of combined treatments involving varying nitrogen volume fractions and oxygen scavenger doses on four insect stages of E. elutella.

The results showed that the mortality rate of E. elutella was significantly affected by the nitrogen volume fraction, oxygen scavenger dose, and the duration of exposure. Within a fixed nitrogen volume fraction, the mortality rate of all insect stages increased with higher oxygen scavenger doses and longer exposure times. When the nitrogen volume fraction, oxygen scavenger dose, and exposure durations were identical, the mortality rates across the life stages of E. elutella followed the order: adult > larva > egg > pupa.

Combined treatment with nitrogen‑controlled atmosphere and deoxidizer can effectively reduce the damage caused by the E. elutella, providing technical support for the efficient and rational implementation of nitrogen‑controlled atmosphere insect control.