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1 June 2009 Methyl Bromide as a Quarantine Treatment for Chlorophorus annularis (Coleoptera: Cerambycidae) in Raw Bamboo Poles
Alan V. Barak, Yang Weidong, Yu Daojian, Jiao Yi, Kang Lin, Chen Zhilin, Ling Xingyuan, Zhan Guoping
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Abstract

At least 26 different species of insects of quarantine significance were intercepted from 1985 to 2005 on bamboo (Bambusa spp.) garden stakes from China. Three fifths of the live insects were cerambycids in nine genera, including Chlorophorus annularis F., the bamboo borer. The current APHIS-PPQ treatment is fumigation schedule T404-d, which requires high doses of methyl bromide (MeBr) for 24 h. No specific fumigation data exist for C. annularis. Chinese and American quarantine scientists cooperated in testing to determine whether this schedule, or lower doses, would be effective as a quarantine treatment for C. annularis infesting dried bamboo poles. A lower dose based on APHIS tests for solid wood packing (SWP) failed (3/511 survivors) at 56 g/m3 for 24 h at 10.0°C. We therefore tested five progressive doses at five temperatures intermediate between the lower SWP schedule and the much higher applied doses (e.g., 120 g/m3 for 24 h at 10.0°C) of schedule T404-d. Fumigations of infested bamboo poles conducted in 403.2-liter chambers with 52% vol:vol loading at doses of 48, 64, 80, 96, and 112 g/m3 at 26.7, 21.1, 15.6, 10.0, and 4.4°C, respectively (20 total replicates, with 4 replicates per dose), had no survivors among 2,847 larvae, 140 pupae, and 122 adults. Control replicates (three) had a total of 455 live stages (397 larvae, 31 pupae, and 27 adults). Tests conducted with a sea/land cargo container loaded to 80% capacity with bamboo poles verified the ability of the schedule to maintain effective concentrations over 24 h in commercial-sized fumigations. We propose a new bamboo quarantine treatment schedule at reduced rates of applied MeBr.

© 2009 Entomological Society of America
Alan V. Barak, Yang Weidong, Yu Daojian, Jiao Yi, Kang Lin, Chen Zhilin, Ling Xingyuan, and Zhan Guoping "Methyl Bromide as a Quarantine Treatment for Chlorophorus annularis (Coleoptera: Cerambycidae) in Raw Bamboo Poles," Journal of Economic Entomology 102(3), 913-920, (1 June 2009). https://doi.org/10.1603/029.102.0308
Received: 22 October 2008; Accepted: 1 February 2009; Published: 1 June 2009
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