Herbicide selection for wandering Jew (&lt;i&gt;Tradescantia fluminensis&lt;/i&gt;) control

Hurrell, G. A.; James, T.K.; Lusk, C. S.; Trolove, M.

doi:10.30843/nzpp.2008.61.6885

Cited by 9 publications

(11 citation statements)

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“…(1) herbicide-treatment, (2) beetle-treatment, (3) no-treatment (T. fluminensis was left undisturbed), and (4) seedlings-only (T. fluminensis manually removed). The herbicide-treatment pots were treated following procedures described in Hurrell et al (2008). Thus, Grazon® (active ingredient 600 g/litre triclopyr) was applied at a rate of 0.72% ai plus 0.1% Pulse surfactant (800 g/litre active ingredient organomodified polydimethyl siloxane) with a knapsack sprayer to run-off.…”

Section: Methodsmentioning

confidence: 99%

“…Many germinating native seedlings are unable to tolerate the low light levels found underneath thick T. fluminensis stands commonly found in New Zealand (Standish et al 2001). Traditionally T. fluminensis has been controlled with herbicides (Department of Conservation 2012), but this is labour intensive and harms or kills many non-target species (Kelly & Skipworth 1984;Harrington & Schmitz 2007;Hurrell et al 2008). Further studies on different methods of control have found that light deprivation (shading out to 2-5% of full light) is an effective means of reducing T. fluminensis biomass (Standish 2002), but this is difficult to implement over large areas.…”

Section: Introductionmentioning

confidence: 99%

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Neolema ogloblini exploring a new option for the control of tradescantia (Tradescantia fluminensis)

Jackman¹,

Peterson²,

Robertson³

et al. 2015

NZPP

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The leaf beetle Neolema ogloblini was released in 2011 as a biological control agent for Tradescantia fluminensis a major warm temperate forest environmental weed in New Zealand To assess whether N ogloblini can suppress T fluminensis and improve native seedling growth and survival a glasshouse experiment was established Kawakawa (Macropiper excelsum) and mahoe (Melicytus ramiflorus) seedlings were planted underneath uncontrolled T fluminensis and compared with seedlings (1) under T fluminensis damaged by N ogloblini (2) under T fluminensis sprayed with herbicide (triclopyr) and (3) released from competition by manually removing T fluminensis Seedlings did not grow faster in response to reduced T fluminensis biomass and increased light levels following feeding by N ogloblini over the 12 week experiment However seedling survival rates were higher (kawakawa 87 and mahoe 93) with N ogloblini feeding than herbicidetreatment (kawakawa 17 and mahoe 3) T fluminensis Survival in uncontrolled T fluminensis (kawakawa 90 and mahoe 57) varied for the two species This experiment suggests that regeneration of native plants may benefit from damage to T fluminensis caused by N ogloblini feeding in the field

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Neolema ogloblini exploring a new option for the control of tradescantia (Tradescantia fluminensis)

Jackman¹,

Peterson²,

Robertson³

et al. 2015

NZPP

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“…The search for alternative 'safer' herbicides has so far failed to produce any that equal triclopyr in efficacy. However, there are other herbicides that give some suppression of the weed, for example, amitrole and glyphosate (Hurrell et al 2008), and in the case of glyphosate, there is no soil residue. These herbicides may be better options for follow-up spot applications.…”

Section: Methodsmentioning

confidence: 99%

“…In a previous study comparing several herbicides for the control of wandering Jew (Hurrell et al 2008), triclopyr (Grazon 600 EC) was found to be the most effective, giving 98-100% control when it was applied to runoff at rates of 0.18 and 0.39% ai in three glasshouse experiments and at 0.72% ai in a field experiment. In other studies triclopyr has been shown to be similarly effective when applied to runoff at 0.42 and 0.84% ai (McCluggage 1998), at between 0.2 and 0.8% ai (Brown & Rees 1995) and at 0.4% ai (Standish 2002).…”

Section: Introductionmentioning

confidence: 97%

Effects of rate of application of triclopyr on wandering jew (Tradescantia fluminensis Vell)

Hurrell¹,

James²,

Lamoureaux³

et al. 2009

NZPP

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Wandering Jew (Tradescantia fluminensis Vell) is a common weed in canopydepleted indigenous forest remnants in New Zealand In this study triclopyr was applied to dense stands of wandering Jew at a range of rates in each of two experiments (Diamond Harbour in the South Island and Te Pahu in the North Island) to determine its effects on the weed and subsequent regrowth The cover of wandering Jew was initially reduced by 80100 with herbicide application At about 1 year after application of the herbicide the wandering Jew had regrown to about 350 cover depending on the rate of triclopyr applied and some indigenous seedlings had begun to appear However the survival of these seedlings was minimal

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“…Hurrell et al (2009) tested a range of herbicide rates on tradescantia and found that higher rates of herbicide were more effective at removing tradescantia biomass, but regrowth of tradescantia occurred regardless of the rate of herbicide used, and occurred sooner where a lower herbicide rate was used. In terms of effects of tradescantia control treatments on native plant communities, Standish (2002) found that native plant survival decreased in herbicide-treated plots compared to hand-weeded and untreated plots, whereas Hurrell et al (2008) found no evidence that herbicide rate influenced native seedling numbers or timing of emergence. There appear to be no published New Zealand field studies on the control of other ground cover weed species.…”

Section: Introductionmentioning

confidence: 99%

Can a reduced rate of herbicide benefit native plants and control ground cover weeds?

McAlpine¹,

Lamoureaux²,

Timmins³

et al. 2018

NZ J Ecol

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The use of herbicide to control weeds in natural areas can cause non-target damage to resident native plant communities and compromise native restoration goals. We tested 'full ' and 'reduced' (half) rates of herbicide (rates based on previous glasshouse trials) on the ground cover weed species tradescantia (Tradescantia fluminensis), plectranthus (Plectranthus ciliatus), and climbing asparagus (Asparagus scandens) to determine whether the reduced rate would cause less non-target damage to natives and achieve sufficient control of the weeds. We also included a manual removal (hand-weeding) treatment, and experimental control (non-treatment). These four treatments were applied to dense ground cover weed infestations at six lowland forest sites. Subsequent responses of the ground cover weed, native and other exotic plant species were monitored for 24 months. Two months after treatment, biomass of all three weed species was reduced to extremely low levels across all treatments relative to controls. Twenty-four months after treatment, biomass of plectranthus remained low, but tradescantia and climbing asparagus had recovered to near pre-treatment biomass levels across all treatments. Recovery of tradescantia was positively correlated with canopy openness. The reduced rate of herbicide gave a similar level of weed control to the full rate, across all three weed species, however repeat treatments appear necessary for sustained control of tradescantia and climbing asparagus. At sites invaded by plectranthus, the reduced rate of herbicide also increased native species richness. However, herbicide treatments had no effect on native plant abundance or native species richness at sites invaded by tradescantia and climbing asparagus. Manual removal sometimes benefited native plants, but all treatments increased abundance and/ or species richness of other exotic plant species at some sites. Generally, native plant abundance and native species richness decreased with increasing canopy openness, while the opposite was true for exotic species. This study provides evidence that, although repeat applications are likely necessary, a reduced rate of herbicide can benefit native plants and achieve ground cover weed control. Further research to fine-tune these results and extend them to other ground cover weed species would be invaluable.

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Herbicide selection for wandering Jew (<i>Tradescantia fluminensis</i>) control

Cited by 9 publications

References 0 publications

<i>Neolema ogloblini</i> exploring a new option for the control of tradescantia (<i>Tradescantia fluminensis</i>)

<i>Neolema ogloblini</i> exploring a new option for the control of tradescantia (<i>Tradescantia fluminensis</i>)

Effects of rate of application of triclopyr on wandering jew (<i>Tradescantia fluminensis</i> Vell)

Can a reduced rate of herbicide benefit native plants and control ground cover weeds?

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