Preliminary report on controlled nitrogen atmosphere in metal silo bin in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F16%3A00003946" target="_blank" >RIV/00027006:_____/16:00003946 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preliminary report on controlled nitrogen atmosphere in metal silo bin in the Czech Republic

Popis výsledku v původním jazyce

Modified anoxic atmospheres - including nitrogen atmosphere – belong among the most promising non-toxic alternatives for control of stored-product insects and mites in many types of dry stored-products. This study brings the first preliminary report on the usage of nitrogen anoxic atmosphere in silo bin in the Czech Republic. The trials were conducted in a metal silo containing 25 tons of legume seeds and controlled atmosphere of 1 % O2 and 99 % N2. Three trials were carried at different exposure times and similar temperatures: 1 day exposure (16.5 – 20.3 °C), 7 day exposure (17.5 – 23.6 °C) and 10 day exposure (15.9 – 23.9 °C). Since no legume-infesting pests were available at the date of the experiment, six model species of stored-product pests were used instead. Ten specimens of each species (enclosed in plastic Petri dishes with mash lid) were placed at the bottom and top area of the silo. Three replications were used for each trial and species. Ten days of exposure lead to 100% mortality of all adults located at the bottom and top of the silo. Seven days of exposure lead, with one exception, to 100% mortality of all adults located at both silo locations. The only exception was represented by the partial survival of Sitophilus granarius adults (96.7% mortality) at the silo-bottom. One day exposure resulted in great data variation: mortality ranged from 0% to 100% depending on species and silo location. The average pest mortality was higher at the silo-top (82.5%) than at the silo-bottom (16.3%). The complete mortality was reached for Tribolium castaneum, T. confusum and Oryzaephilus surinamensis in Petri dishes located at the silo top while zero mortality was reached for Tribolium castaneum in Petri dishes located at the silo bottom. Out of the tested pests Cryptolestes ferrugineus was the most tolerant species to nitrogen atmosphere; for this pest it was recoreded17% mortality at the silo-top; and 6.7% mortality at the silo-bottom.

Název v anglickém jazyce

Preliminary report on controlled nitrogen atmosphere in metal silo bin in the Czech Republic

Popis výsledku anglicky

Modified anoxic atmospheres - including nitrogen atmosphere – belong among the most promising non-toxic alternatives for control of stored-product insects and mites in many types of dry stored-products. This study brings the first preliminary report on the usage of nitrogen anoxic atmosphere in silo bin in the Czech Republic. The trials were conducted in a metal silo containing 25 tons of legume seeds and controlled atmosphere of 1 % O2 and 99 % N2. Three trials were carried at different exposure times and similar temperatures: 1 day exposure (16.5 – 20.3 °C), 7 day exposure (17.5 – 23.6 °C) and 10 day exposure (15.9 – 23.9 °C). Since no legume-infesting pests were available at the date of the experiment, six model species of stored-product pests were used instead. Ten specimens of each species (enclosed in plastic Petri dishes with mash lid) were placed at the bottom and top area of the silo. Three replications were used for each trial and species. Ten days of exposure lead to 100% mortality of all adults located at the bottom and top of the silo. Seven days of exposure lead, with one exception, to 100% mortality of all adults located at both silo locations. The only exception was represented by the partial survival of Sitophilus granarius adults (96.7% mortality) at the silo-bottom. One day exposure resulted in great data variation: mortality ranged from 0% to 100% depending on species and silo location. The average pest mortality was higher at the silo-top (82.5%) than at the silo-bottom (16.3%). The complete mortality was reached for Tribolium castaneum, T. confusum and Oryzaephilus surinamensis in Petri dishes located at the silo top while zero mortality was reached for Tribolium castaneum in Petri dishes located at the silo bottom. Out of the tested pests Cryptolestes ferrugineus was the most tolerant species to nitrogen atmosphere; for this pest it was recoreded17% mortality at the silo-top; and 6.7% mortality at the silo-bottom.

Druh

D - Stať ve sborníku

CEP obor

GF - Choroby, škůdci, plevely a ochrana rostlin

OECD FORD obor

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Projekt

<a href="/cs/project/QJ1310057" target="_blank" >QJ1310057: Technologie řízených atmosfér a teplotních manipulací, proti škůdcům skladovaných obilovin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

4

Strana od-do

329-332

Název nakladatele

CAF Permanent Committee Secretariat

Místo vydání

Winninpeg, Canada

Místo konání akce

New Delhi, India

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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