Flour-mill fumigation using hydrogen cyanide insecticide gas
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F16%3A00003944" target="_blank" >RIV/00027006:_____/16:00003944 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Flour-mill fumigation using hydrogen cyanide insecticide gas
Original language description
Due to their good penetration properties, fumigants still belong among the key components of the integrated pest control programmes in mills in many countries. Hydrogen cyanide (HCN) is commercially available and registered in some EU countries as a biocide for mill and airplane fumigation. Although it is known (mostly from laboratory studies) that HCN has good biological activity on all pest stadia including eggs, currently there is insufficient information concerning biological HCN efficacy in relation to the concentration-time-products (CtP) reached during the real-world flour mill fumigations. The aims of this study were as follows: First to estimate the extent of variation of HCN concentration-time-products at various floors of flour mill building during a “real world” commercial fumigation. Second to estimate HCN biological efficacy on the confused flour beetle, Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae) exposed to fumigant under “naked” (i.e. pests enclosed in open empty vials and covered by mash lid) and “obstructed” (i.e. pests enclosed in the same vials but containing various layers of wheat flour) conditions. Although concentration-time-products (CtP) estimated for HCN were less than half of the labelled HCN rate (240 g/h/m3), 100% efficacy was recorded for larvae and adults of T. confusum in all of the mill floors and locations tested. Regardless of the floor and CtP variations, all adults and larvae of exposed T. confusum were dead. Contrary to the general believe that HCN is usually is poor penetrative fumigant, we found 100% mortality of T. confusum enclosed in the vials containing wheat flour.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
GF - Diseases, pests, weeds and plant protection
OECD FORD branch
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Result continuities
Project
<a href="/en/project/QJ1310057" target="_blank" >QJ1310057: Technology of controlled atmospheres and manipulated temperatures against pests of stored cereals.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 10th International Conference on Controlled Atmosphere and Fumigation in Stored Products
ISBN
978-0-9958110-0-3
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
173-177
Publisher name
CAF Permanent Committee Secretariat
Place of publication
Winninpeg, Canada
Event location
New Delhi, India
Event date
Jan 1, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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