Mitteilungen der deutschen Gesellschaft für allgemeine und angewandte Entomologie (2001) 13, 535-538

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Inga Mewis, Christian Ulrichs and Wilfried H. Schnitzler (2001)
Ovipositionspräferenz des Südeuropäischen Kruziferenzünslers: Hellula undalis (Fabricius) (Lepidoptera: Pyralidae)
Mitteilungen der deutschen Gesellschaft für allgemeine und angewandte Entomologie 13, 535-538
Abstract: The cabbage webworm, Hellula undalis (F.), is a tropical pest on crucifers. H. undalis differentiated among host species for oviposition in laboratory and field tests. White mustard, Sinapis alba (L.) var. Selinda, was the preferred species, followed by Brassica juncea [L.] Czern. et. Coss var. Canadian brown mustard, and pak-choi, Brassica campestris L. ssp. chinensis var. Joi Choi, Black Behi and Bai Tsai. Glucosinolates (GS) and their breakdown products, as secondary plant compounds present in the three plant species, were analyzed by using HPLC and GC-MS-techniques. Species differed in GS composition and content. GS content was highest in S. alba with progressively lower contents detected in B. juncea and B. chinensis. The aromatic GS, sinalbin and glucotropaeolin, were detected in S. alba. In B. juncea the alkenyl GS, sinigrin, dominated, whereas in varieties of B. chinensis indolyl and alkenyl GS predominated. Oviposition of H. undalis females on the non-host plant Vigna sesquipedalis was stimulated by application of the GS, sinigrin as well as GS extracts from species. Whereas, females preferred for oviposition treated leaves with extracts from S. alba, followed by B. juncea and B. chinensis, according to the bioassays with whole plant samples.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)
Database assignments for author(s): Christian Ulrichs

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Hellula undalis Brassica - other species
Hellula undalis Yellow mustard (Sinapis alba)
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