Consulta: creatorFacets:"Geertsema, H."
Registros recuperados: 2
Data/hora: 10/06/2024 06:57:01

A new leafminer on grapevine and Rhoicissus (Vitaceae) in South Africa within an expanded generic concept of Holocacista (Insecta, Lepidoptera, Heliozelidae)
Provedor de dados: 16
Autores: Nieukerken, E.J. van; Geertsema, H.
A grapevine leafminer found recently in table grape orchards and vineyards in the Paarl region (Western Cape, South Africa) is described as Holocacista capensis sp. n. It has also been found on native Rhoicissus digitata and bred on that species in the laboratory. It is closely related to Holocacista salutans (Meyrick, 1921), comb. n. (from Antispila), described from Durban in KwaZulu-Natal, but widespread in southern Africa and a native leafminer of various Vitaceae: Rhoicissus tomentosa, R. digitata, R. tridentata and Cissus cornifolia. Holocacista capensis has been found on Vitis vinifera both in Gauteng and Western Cape, the earliest record being from 1950 in Pretoria. The initial host shift from native Vitaceae to Vitis must have occurred much...
Tipo: Article / Letter to the editor
Palavras-chave: Host shift; Leafminers; Vitaceae; Viticulture; Table grapes; Rhoicissus; Cissus; DNA barcode; Genitalia; Holocacista; Antispilina; Antispila; Afrotropics; South Africa; Zimbabwe; India.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/648754

Identification of the female-produced sex pheromone of the leafminer Holocacista capensis infesting grapevine in South Africa
Provedor de dados: 16
Autores: Wang, H.-L.; Geertsema, H.; Nieukerken, E.J. van; Löfstedt, C.
We report the first identification of a sex pheromone in a heliozelid moth, Holocacista capensis van Nieukerken &amp; Geertsema. This leafminer recently infested grapevine in South Africa. Compared to solvent extraction of pheromone glands, solid phase microextraction (SPME) proved to be highly effective for collection of the pheromone from calling females. The volatiles collected by SPME were analyzed by gas chromatography with electroantennographic detection (GC/EAD). Three compounds eliciting electrophysiological activity from the male antenna were identified as (Z)-5-tetradecenal, (Z)-7-tetradecenal, and (Z)-9-hexadecenal by coupled gas chromatography–mass spectrometry (GC/MS). GC/MS analysis of dimethyldisulphide (DMDS) derivatives of fatty acyl...
Tipo: Article / Letter to the editor
Palavras-chave: Sex pheromone; Leafminer; Heliozelidae; Holocacista capensis; Primitive moth; Vineyard pest; Vitis vinifera; (Z)-5-tetradecenal; (Z)-7-tetradecenal; Lepidoptera.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/648757