Abstract
Investigations about tolerance of Khapra Beetle (Trogoderma granarium Everts) to methyl bromide at low temperature in relation to concentration, type of post-treatment and stage of development
The influence of variou methyl bromide concentrations (5–100 g/m3 was investigated at 5 °C on the tolerance ofTrogoderma-larvae in relation to two post-treatment methods. Experimental results show that there are no significant differences betwenn the mean of the ct-products of the higher concentrations (18–100 g/m3 and of the lower concentrations (5–12 g/m3 producing 90 and 99.9 per cent mortality, if the larvae are kept for another 10 days at this fumigation temperature before they are held at 28 °C until final control.
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El-Lakwah, F. Untersuchungen zur Widerstandsfähigkeit von Khaprakäfern (Trogoderma granarium Everts) gegen Methylbromid bei niedriger Temperatur in Abhängigkeit von Konzentration, Nachbehandlungsart und Entwicklungsstadium. Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 50, 118–122 (1977). https://doi.org/10.1007/BF02336613
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DOI: https://doi.org/10.1007/BF02336613