Classification of Herbicides by Site of Action for Weed Resistance Management Strategies

Retzinger, E. James; Mallory‐Smith, Carol

doi:10.1017/s0890037x00043116

Cited by 95 publications

(58 citation statements)

References 7 publications

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“…x Differences between parameter estimates were determined using the lack-of-fit F test at the 0.05 level of significance (refer to text); when parameter estimates did not differ between varieties, one function with common parameter values was fit to the data. w Herbicide group, defined by mode of action (Retzinger and Mallory-Smith 1997). v One Coefficient of determination (R 2 ) is calculated for the entire model.…”

mentioning

confidence: 99%

Response of two Canada thistle (Cirsium arvense) varieties to herbicides

Eskandar¹,

Beckie²,

Myhre³

et al. 2002

Can. J. Plant Sci.

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. 2002. Response of two Canada thistle (Cirsium arvense) varieties to herbicides. Can. J. Plant Sci. 82: 625-628. Field observations suggested that control of Canada thistle variety horridum by hexazinone was greater than that of variety integrifolium. To confirm these observations, the response of these two varieties to hexazinone and 13 other herbicides was examined under controlled environment conditions. The tolerance of the variety integrifolium to hexazinone was 40% greater compared with the variety horridum. Differences in shoot growth response between the two varieties were not detected from any of the other herbicides. Après observation sur le terrain, il semble que la variété horridum du chardon des champs réagit mieux à l'hexazinone que la variété integrifolium. Pour le confirmer, les auteurs ont étudié la réaction des deux variétés à l'hexazinone et à 13 autres herbicides en milieu contrôlé La variété integrifolium tolère 40 % mieux l'hexazinone que la variété horridum. Aucun écart de croissance entre les pousses des deux variétés n'a été décelé pour les autres désherbants.

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mentioning

confidence: 99%

Response of two Canada thistle (Cirsium arvense) varieties to herbicides

Eskandar¹,

Beckie²,

Myhre³

et al. 2002

Can. J. Plant Sci.

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“…This fact is proven, since many of the management steps recommended in the areas of resistance are also applicable to the condition of prevention. According to (Retzinger & Mallory-Smith, 1997), the prevention and especially the resistance management should consider: (i) identification and prior knowledge of species and the justifiable economic harm before the establishment of chemical control, (ii) search for alternative methods of weed management (mechanical, cultural, etc.) (iii) use of crop rotation and herbicides with different mechanisms of control, (iv) consider the number of recommended applications of an herbicide or herbicides with the same mechanism of action within the same crop year, (v) using sequential mixtures with herbicides of different mechanisms of action, (vi) evaluation after application of the treatment, looking for areas with signals of weeds.…”

Section: Weeds Resistance and Their Management In Cropmentioning

confidence: 99%

Weed Competition in the Soybean Crop Management in Brazil

Reis¹,

Vivian²

2011

Soybean - Applications and Technology

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“…The first commercially available glyphosate-resistant crops were soybean, canola, cotton, and corn, which were released in 1996, 1997, 1997, and 1998 In the case of chemical weed control, no single herbicide controls all weeds, as weeds differ in their susceptibility to an herbicide. Susceptible weeds are largely eliminated over time with continued use of the same herbicide.…”

Section: The Roundup Ready Alfalfa Technologymentioning

confidence: 99%

“…Weed susceptibility charts are useful to help develop an effective herbicide rotation scheme (Canevari et al 2006). In addition, publications on herbicide chemical families are available to assist growers in choosing herbicides with different mechanisms of action (Retzinger and Mallory-Smith 1997).…”

Section: Rotation Of Herbicidesmentioning

confidence: 99%

Avoiding Weed Shifts and Weed Resistance in Roundup Ready Alfalfa Systems

Orloff¹,

Putnam²,

Canevari³

et al. 2009

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OVERVIEWWeeds present a continual challenge for profitable alfalfa production. The Roundup Ready (RR) production system, using transgenic alfalfa, has the potential to simplify weed management by improving broad-spectrum control of both annual and difficultto-control perennial weeds. The use of glyphosate, in combination with transgenic crops, has proven to be a reliable weed control strategy.However, weed species shifts and the selection for glyphosate-resistant weeds can result from the increased use of this technology if the crop is not managed properly from the outset. Aspects of the alfalfa production system both favor and discourage the occurrence of weed shifts and the evolution of resistant weeds. Alfalfa is a competitive perennial crop that is cut multiple times per year, making it difficult for most weeds to become established. On the other hand, the RR alfalfa system may be vulnerable to weed shifts and resistant weeds for several reasons: tillage typically only occurs between crops, alfalfa is produced over a wide geographical area and in large fields with a great diversity of weeds, and there is potential for long-term repeated use of a single herbicide because it is a perennial crop. In this publication we recommend an integrated weed management system designed to prevent the proliferation of tolerant or resistant weeds. Elements include crop rotation, rotations with herbicides of different modes of action (preferably soil-residual herbicides), tank mixtures, and irrigation and harvest timing. Successful adaptation of these concepts into production systems would assure the long-term effectiveness and sustainability of the Roundup Ready system in alfalfa. A preemptive approach is warranted; these strategies should be employed before weed shifts and weed resistance occur.

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Classification of Herbicides by Site of Action for Weed Resistance Management Strategies

Cited by 95 publications

References 7 publications

Response of two Canada thistle (Cirsium arvense) varieties to herbicides

Response of two Canada thistle (Cirsium arvense) varieties to herbicides

Weed Competition in the Soybean Crop Management in Brazil

Avoiding Weed Shifts and Weed Resistance in Roundup Ready Alfalfa Systems

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