Potential of hydrogen cyanide (HCN) fumigant for control of mill and wood infesting pests

摘要

Gaseous hydrogen cyanide (HCN) is one of the few fumigation alternatives to the banned ozone depleting chemical methyl bromide (MBr). In the Czech republic it is registered as Urgan D2. This article brings new information on the penetration of HCN into wood and the biological efficacy of HCN on mill infesting pests (Red flour beetle) and wood infesting long horn beetle larvae of (House longhorn beetle, and Asian longhorned beetle). We found 100% mortality of larvae of H. bajulus and A. glabripennis for HCN 20 g/m3 (1, 3 and 6-hour exposure). We documented high (ovicide) HCN efficacy on Tribolium castaneum eggs while the most tolerant stadium was pupa.