Effects of including forage herbs in grass–legume mixtures on persistence of intensively managed pastures sampled across three age categories and five regions

Tozer, K. N.; Barker, G. M.; Cameron, C. A.; Wilson, D.; Loick, Nadine

doi:10.1080/00288233.2016.1188831

Cited by 15 publications

(12 citation statements)

References 38 publications

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“…In summary, while the results reported are from just one sampling date, they show that small diverse patches within pasture do have a significant impact on the abundance and species richness of the parasitoids that aggregate on them. Given the positive benefits of the inclusion of chicory and/or plantain in New Zealand pastures on predator and parasitoid abundance (Tozer et al 2016), more detailed study is warranted to quantify how pasture plant diversity impacts on pasture ecosystem stability and pest outbreak risk.…”

Section: Discussionmentioning

confidence: 99%

“…Poor pasture persistence is ranked as one of the most important factors currently limiting farm economic performance in New Zealand, with drought and insect pests implicated as the main drivers (Tozer et al 2016). However, there is limited research on terrestrial biodiversity in production landscapes and how it may impact on agroecosystem communities and resilience (Moller et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, the lack of plant diversity in pastures is postulated to underlie the loss of efficacy of Microctonus hyperodae Loan (Hymenoptera: Braconidae); the biocontrol agent introduced to control the Argentine stem weevil (Listronotus bonariensis (Kuschel) (Coleoptera: Curculionidae) (Goldson et al 2014;Tomasetto et al 2017). The potential benefits of increasing pasture plant diversity on invertebrate community composition were demonstrated in a study by Tozer et al (2016) across five regions in New Zealand. They found that although the inclusion of the forage herbs chicory (Cichorium intybus L.) or plantain (Plantago lanceolata L.) in a grass-legume pasture had no impact on herbivorous invertebrates, it resulted in a 65% increase in predator and parasitoid abundance.…”

Section: Introductionmentioning

confidence: 99%

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Does pasture plant diversity influence abundance and diversity of lacewings and Hymenopteran parasitoids?

Gerard

Wilson

Docherty

2018

NZPP

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The lack of plant biodiversity in New Zealand pastoral ecosystems may limit the abundance and diversity of generalist parasitoids and predators, predisposing these ecosystems to pest outbreaks. To test this hypothesis, patches of turf were established in existing pasture during spring 2016. Four treatments of increasing plant complexity were established, commencing with ryegrass alone, and increasing exponentially up to eight species of forage plant per patch. In the summer of 2017, insects were collected from the patches and control plots using suction to assess whether or not plant diversity had influenced the abundance and diversity of lacewings and parasitic Hymenoptera aggregating in the patches. Plant species richness had no impact on lacewing abundance but fewer parasitic Hymenoptera were recovered from the ryegrass-only plots compared with more species rich plots. Also, a wider range of parasitoid families were represented in the more diverse plant treatments compared with the less diverse treatments. Such diversity may have beneficial impacts on the stability of pasture ecosystem and the risk of pest outbreaks.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Does pasture plant diversity influence abundance and diversity of lacewings and Hymenopteran parasitoids?

Gerard

Wilson

Docherty

2018

NZPP

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“…The characteristics of P. lanceolata and C. intybus of increased productivity during summer months [58] and the tolerance of hot and dry conditions over other common species [59] are desired features that farmers need in order to extend the grazing period, helping to increase the persistence of sown species and reducing weed ingress when forage herbs are included in the pasture mixture on sheep and beef systems [60] and increasing milk production as a part of multispecies swards [61]. The forage herb C. intybus is suggested as a potential alternative to F. arundinacea, D. glomerata and L. perenne under frequent heat and drought stress [62].…”

Section: Overview Of the Genus And Species Importedmentioning

confidence: 99%

Are Chilean Pasture Seed End-Users Adopting New Species? Trends and Joinpoint Regression Analysis of the Last 19 Years of Seed Imports

2021

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Pastures are important for the agricultural sector as forage, recreational and sports systems. The Chilean pasture seed market is highly dependent on introduced genetics; however, the effect of climate change and market conditions can modify pasture options. The objective of this study was to quantify changes of the pasture seeds sown by Chilean end-users, as metric tons (Mt) or proportion of the total (PT), based on 19 years of imported seed. The Mann–Kendall test and joinpoint regression analysis were used to estimate the overall trends and the average annual percent change (AAPC) for the whole period, respectively. The total imported Mt had an increasing trend and AAPC (+5.7%), wherein a large PT corresponded to ryegrasses (Lolium spp.) (0.681), with increasing trends for Mt and PT. Clovers (Trifolium spp.) had decreasing trends and AAPC (−2.9% for Mt and −9.6% for PT). For PT, the main species was perennial ryegrass (L. perenne L.) (0.357), with increasing trends for Mt. As Mt, a positive AAPC was found for plantain (P. lanceolata L.) (+17.4%) and chicory (C. intybus L.) (+63.2%). Over a period of 19 years, based on Mt but not PT, Chilean end-users have been adopting new pasture species with a decreasing use of Trifolium spp.

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“…Sanderson et al [97] reported that the inclusion of diverse forage species in grass-legume mixtures reduced weed ingress simply because the greater herbage mass prevented weed invasion. Also, Tozer et al [98] stated that the addition of forage herbs, Cichorium intybus L. or Plantago lanceolate L., in grass-legume mixtures reduced weed infestations in sheep and beef farms.…”

Section: Agronomic Tactics For Pasture Weed Controlmentioning

confidence: 99%

Weed Management in New Zealand Pastures

Ghanizadeh

Harrington

2019

Agronomy

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In New Zealand, pastoral farming for dairy and meat production is the major land use. As with any agricultural production system, weeds are a threat to efficient pasture production in New Zealand. In this review, we outline the problems caused by weeds in New Zealand pastures, and the management strategies being used to control them. There are currently 245 plant species from 40 plant families that are considered to be troublesome weeds in New Zealand pastures. The application of herbicides is an important approach to manage weeds in New Zealand pastures; however, a key to the success of these pastures is the use of clovers in combination with the grasses, so the challenge is to find herbicides that selectively control weeds without damaging these legumes. The use of spot spraying and weed wiping are often required to ensure selective control of some weed species in these pastures. Non-chemical agronomic approaches such as grazing management and using competitive pasture species often play a more important role than herbicides for weed management in many New Zealand pastures. Thus, integrated weed management using a combination of herbicides and good pasture management strategies leads to the most cost-effective and efficient control of pasture weeds in New Zealand.

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Effects of including forage herbs in grass–legume mixtures on persistence of intensively managed pastures sampled across three age categories and five regions

Abstract: (2016) Effects of including forage herbs in grass-legume mixtures on persistence of intensively managed pastures sampled across three age categories and five regions,

Cited by 15 publications

References 38 publications

Does pasture plant diversity influence abundance and diversity of lacewings and Hymenopteran parasitoids?

Does pasture plant diversity influence abundance and diversity of lacewings and Hymenopteran parasitoids?

Are Chilean Pasture Seed End-Users Adopting New Species? Trends and Joinpoint Regression Analysis of the Last 19 Years of Seed Imports

Weed Management in New Zealand Pastures

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