Login | Request Account (DAF staff only)

Effectiveness of closed-loop systems for phosphine fumigation of large scale grain storages in China

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

Wang, D. X. and Collins, P. J. (2003) Effectiveness of closed-loop systems for phosphine fumigation of large scale grain storages in China. International Pest Control, 45 (6). pp. 325-328. ISSN 0020-8256

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link: https://eurekamag.com/research/004/130/004130025.p...

Abstract

The effectiveness of closed-loop phosphine fumigation was tested in two large, horizontal warehouses and one large round, squat grain storage in China. Phosphine was applied as aluminium phosphide tablets placed on the surface of the grain or with a generator. Each storage was tested for gas-tightness and phosphine concentration was monitored during the fumigations. The pressure decay half-lives, 500 to 250 pa, were 48-60 seconds for the horizontal storages and 200 seconds for the circular squat storage and the dosage of aluminium phosphide tablets was 1.5-2.0 g/m3 (releasing 1.5-2.0 g PH3/m3). Phosphine concentration was maintained at greater than 100, 150 and 200 ml/m3 for more than 18, 16 and 6 days, respectively. The loss of phosphine from the storage was only 3.6-4.2% per day. These concentrations should be sufficient to control completely all insect pests including known resistant strains.

Item Type:Article
Subjects:Plant culture > Harvesting, curing, storage
Plant pests and diseases > Pest control and treatment of diseases. Plant protection > Pesticides
Live Archive:29 Jan 2024 04:27
Last Modified:29 Jan 2024 04:27

Repository Staff Only: item control page