TY - JOUR AU - Locatelli, D.P. AU - Girgenti, P. AU - Moncini, L. AU - Limonta, L. PY - 2020/11/30 Y2 - 2024/03/29 TI - Semifield study on the effect of membrane-based nitrogen production for the control of the eggs of Sitophilus oryzae (L.) and Tribolium confusum J. du V. JF - Journal of Entomological and Acarological Research JA - J Entomol Acarol Res VL - 52 IS - 1 SE - Stored product pests DO - 10.4081/jear.2020.9278 UR - https://www.pagepressjournals.org/jear/article/view/9278 SP - AB - <p>In this paper, the effect of a highly purified N2 (98.5%) controlled atmosphere-generated in situ by a membrane nitrogen separator on mixed age eggs of <em>Sitophilus oryzae</em> and <em>Tribolium confusum</em> was evaluated. Trials were carried out in an airtight stainless silo filled with wheat, in which a nitrogen atmosphere was maintained for durations lasting from one to several days. The mean temperature recorded during the treatment varied from 22 to 24°C. After the treatment, the eggs were transferred to a jar with rearing medium and kept at 27±1°C and 70±5% R.H. The jars were checked every two days to record adult emergence. Eighty percent mortality was observed in <em>T. confusum</em> and <em>S. oryzae</em> with two and four days of treatment, respectively. One hundred percent mortality was obtained after five days of treatment in the case of <em>T. confusum</em> and six days for<em> S. oryzae.</em></p> ER -