Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/31493
Title: Potato Weed (Galinsoga parviflora): Weed management guide for Australian vegetable production
Contributor(s): Coleman, M  (author); Kristiansen, P  (author)orcid ; Sindel, B  (author)orcid ; Fyfe, C  (author)
Publication Date: 2021-05
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/31493
Open Access Link: https://www.une.edu.au/__data/assets/pdf_file/0011/378191/une-weeds-potato-weed.pdfOpen Access Link
Abstract: 

Potato weed (Galinsoga parviflora) is a warm-season erect annual herbaceous plant, native to Central America. It grows up to 0.6 metres in height, but is usually about 0.3 metres in height.

Leaves are opposite, symmetrical, between 1.0-11.0 cm in length and 0.5- 7.0 cm in width, oval shaped, moderately hairy, with wavy margins. Cotyledon leaves are rounded with a slightly indented tip. Flowers are yellow with white to dull pink petals, 3.5-5.0 mm in length and 2.0-6.0 mm in height. There are two types of flowers: disc flowers, forming the central portion of the flower head; and ray flowers, giving the appearance of a single petal and forming a ring around the disc flower. Potato weed may also be known in parts of Australia as 'yellow weed'. It is named for its broad resemblance to potato plants.

Most vegetable farmers will be well aware of potato weed and how to identify it. It closely resembles 'hairy Galinsoga' (Galinsoga quadriradiata), though at the time of writing that species did not appear to be present in Australia. Depending on stage of growth and experience in identification, some other common annual heavy-seeding weeds of Australian vegetable production may be mis-identified as potato weed, including fat hen (Chenopodium album), amaranth (Amaranthus spp.), or blackberry nightshade (Solanum nigrum).

Publication Type: Book
Publisher: University of New England
Place of Publication: Armidale, Australia
Fields of Research (FoR) 2020: 300409 Crop and pasture protection (incl. pests, diseases and weeds)
300202 Agricultural land management
Socio-Economic Objective (SEO) 2020: 260505 Field grown vegetable crops
HERDC Category Description: A2 Authored Book - Other
Extent of Pages: 12
Appears in Collections:Book
School of Environmental and Rural Science

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