Herbicide application using wiper applicators - A review

Harrington, K.C.; Ghanizadeh, Hossein

doi:10.1016/j.cropro.2017.08.009

Cited by 38 publications

(21 citation statements)

References 30 publications

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“…The challenge has been to find herbicides that selectively control weeds without damaging the pasture species, as New Zealand pastures are based on mixtures of grasses and broadleaf species such as legumes [38]. Hence, herbicides are often applied using methods such as spot spraying [39] and weed wiping [40,41] in order to apply non-selective herbicides for selective control of weeds in pastures.…”

Section: Chemical Control and Herbicide Resistancementioning

confidence: 99%

“…In New Zealand pastures, these herbicides are commonly used for spot spraying to control weed species that are difficult to kill, and which survive boom spraying, as spot spraying reduces the effects on clover production [39]. They are also excellent for application by herbicide wipers because of their superior translocation within plants, which also helps to minimize damage to pasture [40,41,49,50].…”

Section: Auxinic Herbicidesmentioning

confidence: 99%

“…[14]. Metsulfuron-methyl is another ALS-inhibitor herbicide used in pastures, because of its excellent translocation properties, but its lack of selectivity means that it is used as a spot application [39] or with wiper applications [41]. Boom spraying of this herbicide is not recommended as this will lead to the complete removal of clovers and suppression of ryegrass and will also affect the re-establishment of pasture species due to residues lasting up to three months within the soil depending on soil pH [57,58].…”

Section: Acetolactate Synthase-inhibitor (Als-inhibitor) Herbicidesmentioning

confidence: 99%

“…The application of glyphosate for pasture renovation also provides a relatively weed-free environment for the drilling of seeds [62]. Glyphosate has also been used for wiper application to tall weeds within established pastures because of its ability to move into underground organs of perennial weeds [41,63].…”

Section: Other Herbicidesmentioning

confidence: 99%

“…Currently, there are 13 weed species that have evolved resistance to one or more herbicides in different New Zealand agricultural sectors [38,47,48,[65][66][67][68][69]. Four weed species have so far become resistant to one or more herbicides in New Zealand pastures [38,70,71], with the first cases reported in the early 1980 s [41].…”

Section: Herbicide Resistance In New Zealand Pastoral Weedsmentioning

confidence: 99%

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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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Section: Chemical Control and Herbicide Resistancementioning

confidence: 99%