Methyl Bromide(MeBr) as a Quarantine Treatment for Some Insects in Wood

摘要

With the risk of the spread of quarantine pests in the wood trade, an effective treatment for wood plays an important role in quarantine measures. Based on field experiments, confirmatory fumigations were carried out using methyl bromide(MeBr). For wood fumigation under tarpaulins, experiments were conducted at doses of≥48g/m3, with a 16 hour exposure time when treatment temperatures were above 15°C; and when treatment temperatures were above 27.5°C,the MeBr dose was adjusted to ≤32g/m3 with a 24 hour exposure time. All larvas of beetles and insects（belonging to Scolytidae)were completely killed. In a fumigation chamber, the following MeBr doses were used; 80 g/m3 （5 10°C),64 g/m3 （11-15°C) and 48 g/m3 (≥16°C) in which all trial insects were completely killed.