Guides current

No. 9 - Freezing Parameters for the Control of Cigarette Beetle and Tobacco Moth

August 2019 - second edition Ref. PSMST-070-CTG-09

The potential loss of phosphine as a control tool as a consequence of regulation and/or resistance development necessitates finding alternative control methods. The use of low temperatures for the control of storage pests is well documented and has been used to disinfest bulk tobacco and finished products. The use of freezing to control insect pests in tobacco is a non-toxic, residue free alternative to phosphine fumigations. It also provides a means to address concerns of treating tobacco in cold weather and where there is phosphine resistance. This Guide outlines the freezing parameters recommended by the CORESTA Sub-Group on Pest and Sanitation Management in Stored Tobacco (PSMST).