Original paper

Repellent Effect of the Plants Lavender and Caraway on the Migration of Rhyzopertha dominica populations (Coleoptera: Bostrichidae)

[Die Abwehrwirkung von Lavendelblüten und Kümmelsamen auf die Zuwanderung der Borkenkäfer-Art Rhyzopertha dominica (Coleoptera: Bostrichidae)]

Klys, M

Entomologia Generalis Volume 33 Number 1-2 (2011), p. 71 - 78

18 references

published: Jun 30, 2011

DOI: 10.1127/entom.gen/33/2011/71

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ArtNo. ESP146003301005, Price: 9.90 €

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Abstract

The effect of the powdered plants – lavender flowers Lavandula officinalis L and caraway fruits Carum carvi L on the migrating activity of the lesser grain borer Rhyzopertha dominica (Fabricius 1792) was investigated. The experiments were conducted in the laboratory in the temperature of 28°C, 60± 5% RH. In the conditions enabling migration of adult individuals of R dominica, addition to wheat grains lavender or caraway containing essential oils caused high emigration of the pests from the substrate with these plants added. Both the plants have a repelling effect on R dominica, especially in the initial period of infesting the substrate. It was then that a particularly strong repelling effect of lavender was observed: during the 100 days of the experiments emigration was 90–100 %. Application of caraway in the first 70 days of the experiments resulted in 80–95 % emigration. Moreover, lavender causes higher mortality of insects.

Keywords

Rhyzopertha dominica (Fabricius 1792)Carum carviLavandula officinalismigration activitymortalitypopulation dynamicsrepellent