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Effect of water extracts from Geraniaceae [Geraniaceae] plants on feeding and development of Colorado potato beetle [Leptinotarsa decemlineata Say]

100%

Lamparski R., Wawrzyniak M.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

2004

tom 07

nr 2

There were tested water extracts from selected Geraniaceae plants. It was observed that the plant extracts investigated inhibit feeding and development of Colorado potato beetle. The greatest antifeedant activity towards Colorado potato beetles and their larvae was noted for Pelargonium x hortorum Bailey and Geranium sanquineum L. extracts. The Pelargonium x hortorum Bailey extract added to food showed unfavourable effect on the development of female reproductive organs and significantly inhibited the number of eggs laid, however it showed effective neither towards the period of winter diapause nor towards spring emergence of beetles. The highest effectiveness under field conditions was recorded for extract from Erodium cicutarium L.

Ultrastructure, characteristic features and occurrence of Nosema leptinotarsae Lipa, 1968, a microsporidian pathogen of Leptinotarsa decemlineata (Coleoptera, Chrysomelidae)

80%

Yaman M., Ozcan N., Radek R., Linde A., Lipa J. J.

Acta Parasitologica

2011

tom 56

nr 1

This paper presents the ultrastructure and characteristic features of Nosema leptinotarsae infecting L. decemlineata collected in Trabzon (Turkey). Fresh spores are oval, 4.69 ± 0.19 μm in length and 2.43 ± 0.12 μm in width (n = 50). The spore wall is thick and measures 180 to 250 nm and consists of a clear endospore (130 to 170 nm) and an electron-dense, uniform exospore (50 to 80 nm). The polar filament is isofilar and has 15–16 coils. The well-developed polaroplast has a lamellated structure with thin lamellae. The ultrastructural features of Nosema leptinotarsae differ from those of other microsporidia infecting chrysomelids.

Ograniczanie wyników

1 Acta Parasitologica

1 Electronic Journal of Polish Agricultural Universities. Series Agronomy

1 Lamparski R.

1 Linde A.

1 Lipa J. J.

1 Ozcan N.

1 Radek R.

1 Wawrzyniak M.

1 Yaman M.

1 2011

1 2004

Wyniki wyszukiwania

Effect of water extracts from Geraniaceae [Geraniaceae] plants on feeding and development of Colorado potato beetle [Leptinotarsa decemlineata Say]

Ultrastructure, characteristic features and occurrence of Nosema leptinotarsae Lipa, 1968, a microsporidian pathogen of Leptinotarsa decemlineata (Coleoptera, Chrysomelidae)