Abstract: A method and apparatus for disinfesting plant material in a chamber comprising a) a pesticide supply (2) for supplying a vaporising or aerosolised pesticide such as ethyl formate, b) a mixing device (3) for receiving and mixing the pesticide vapour or aerosol with a volume of diluent gas, and producing a first pesticide mixture, and c) a transfer system (4, 5) for introducing the first pesticide mixture into the chamber to form a second pesticide mixture. The chamber can be a greenhouse, silo or even a bag or box containing plant material.

Abstract: A method and apparatus for generating a non-flammable gaseous mixture from a first flammable gas and a second gas in which said first gas is flammable. Air may be extracted from the atmosphere or storage container to be treated. The air is circulated in a conduit (22) via blower (14). A flammable gas is injected (12) into the conduit where it is rapidly diluted to a level below its flammability limit. The method is suitable for unattended automatic treatment over an extended period of time, or a so-called “one shot/quick dump” fumigation where concentrations and flow rates are much higher and the process is under manual supervision.