Carbon dioxide fumigation of Thrips tabaci in export onions
Autor: | M.J. Bendall, C.W. van Epenhuijsen, B.B.C Page., A. Carpenter |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | New Zealand Plant Protection. 55:303-307 |
ISSN: | 1179-352X 1175-9003 |
Popis: | As an alternative to chemical pesticides, elevated carbon dioxide atmospheres were examined as a method for controlling thrips on export onions. A replicated gas delivery system was used to deliver a constant supply of various concentrations of carbon dioxide (CO 2 ) to thrips- infested onions within sealable bags. Six CO 2 treatments - an air control and 15, 30, 45, 60 and 100% C0 2 , (all in balance air) - were applied for 6, 12, 24, 48 and 72 h. Mortality was 100% at CO 2 concentrations of 30% or more after at least 24 h. However, the control treatments also had a high level of mortality and although there were significant differences between the control treatment and the CO 2 treatments, these differences were not large. |
Databáze: | OpenAIRE |
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