Biology ofThysanoplusia orichalcea(Lepidoptera: Noctuidae) in New Zealand
- 1 January 1987
- journal article
- research article
- Published by Taylor & Francis in New Zealand Entomologist
- Vol. 10 (1) , 44-50
- https://doi.org/10.1080/00779962.1987.9722510
Abstract
The paper describes current knowledge of the identification, pest status, and ecology of a newly self-introduced plusiine noctuid moth, Thysanoplusia orichalcea, in New Zealand. Following its discovery in early 1984, it has survived 2 winters, and is well established in the Auckland isthmus, with records as far south as Taranaki. It is polyphagous, with a host plant range differing from, though overlapping with, Chrysodeixis eriosoma. It is more abundant than C. enosoma on 7 species of plant, and could become a significant defoliating pest in legumes and brassicas. Levels of parasitism of T. orichalcea larvae in soybeans were much lower than for C. eriosoma. Nomuraea rileyi, a fungal pathogen of noctuid moths which killed both plusiine species in soybeans, is recorded for the first time in New Zealand.Keywords
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