Morning glory - coastal (Ipomoea cairica)

Also known as: mile-a-minute

Profile

Impact

Coastal morning glory is vigorous perennial climber that is capable of very rapid growth. It was widely cultivated as a garden ornamental and is now common in coastal areas particularly on river banks and tolerates a wide variety of soils types.

Coastal morning glory spreads quickly either forming a dense mat along the ground or climbing on any vertical support into the canopy sometimes up to 4.5 m. Infestations can smother native vegetation, reducing biodiversity and displacing native animals due to habitat destruction.

Description

Coastal morning glory has deeply divided leaves with 5-7 lobes. 

It can generate very long, running underground stems that will also creep along the ground in the absence of any supporting vegetation. 

References

Weeds in Australia - http://www.environment.gov.au

Personal communication (March 2016), Cat Smykowsky, Bush regenerator, Coastal Northern NSW.

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Control

Climbing stems can be cut and left in situ to wither and die. 

Rooted stems and ground-running stems can be treated with translocatable herbicide such as glyphosate, with some degree of success using the following method:

1. Roll up long ground-running stems, to within 1 m of their first firmly rooted point of contact with the ground. 

2. Cut the rolled stems, and either take them off-site for disposal, or leave them to dry out ensuring they do not remain in contact with the soil.  

3. Stem-scrape a long section of of the remaining rooted stem (at least 20 cm) and apply the herbicide immediately (within 10 seconds of making the scrape). 

Herbicide options

WARNING - ALWAYS READ THE LABEL
Users of agricultural or veterinary chemical products must always read the label and any permit, before using the product, and strictly comply with the directions on the label and the conditions of any permit. Users are not absolved from compliance with the directions on the label or the conditions of the permit by reason of any statement made or not made in this information. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website www.apvma.gov.au

See Using herbicides for more information.


PERMIT 9907 Expires 31/03/2020
Glyphosate 360 g/L (Roundup®)
Rate: 200 mL per 10 L of water
Comments: Spot-spray for seedling control.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


PERMIT 9907 Expires 31/03/2020
Glyphosate 360 g/L (Roundup®)
Rate: 1 part glyphosate per 1.5 parts water
Comments: Stem scraping application.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


PERMIT 9907 Expires 31/03/2020
Glyphosate 360 g/L with Metsulfuron-methyl 600 g/kg (Various products)
Rate: 200 mL glyphosate plus 1.5g of metsulfuron-methyl in 10 L water
Comments: Spot spray application
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


Dichlorprop 600 g/L (Lantana 600®)
Rate: 1 L in 200 L of water
Comments: Completely wet all leaves and stem of target plants
Withholding period: Nil.
Herbicide group: I, Disruptors of plant cell growth (synthetic auxins)
Resistance risk: Moderate


Picloram 44.7 g/kg + Aminopyralid 4.47 g/L (Vigilant II ®)
Rate: Undiluted
Comments: Cut stump/stem injection application. Apply a 3–5 mm layer of gel for stems less than 20 mm. Apply 5 mm layer on stems above 20 mm .
Withholding period: Nil.
Herbicide group: I, Disruptors of plant cell growth (synthetic auxins)
Resistance risk: Moderate


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Biosecurity duty

The content provided here is for information purposes only and is taken from the Biosecurity Act 2015 and its subordinate legislation, and the Regional Strategic Weed Management Plans (published by each Local Land Services region in NSW). It describes the state and regional priorities for weeds in New South Wales, Australia.

Area Duty
All of NSW General Biosecurity Duty
All plants are regulated with a general biosecurity duty to prevent, eliminate or minimise any biosecurity risk they may pose. Any person who deals with any plant, who knows (or ought to know) of any biosecurity risk, has a duty to ensure the risk is prevented, eliminated or minimised, so far as is reasonably practicable.

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Reviewed 2014