Pest resistance: Overall principles and implications on evolved herbicide resistance in Iowa

Owen, Micheal D. K.

doi:10.31274/icm-180809-127

Cited by 6 publications

(21 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…to auxin herbicides) under commercial development, the herbicides for these new GE crop cultivars are older, previously available products and have existing resistance in important weeds (i.e. Amaranthus tuberculatus ) …”

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

“…The occurrence of weeds above the soybean canopy in the fall is coincidental with herbicide resistance detected in these populations. Greenhouse evaluations of five herbicide MOAs on more than 200 A. tuberculatus populations from Iowa estimated ( P > 0.05) that resistance to ALS‐inhibiting herbicides occurred in 62–77% of the fields, resistance to photosystem II‐inhibiting herbicides in 44–51%, glyphosate resistance in 42–48%, resistance to protoporphyrinogen oxidase (PPO)‐inhibiting herbicides in 10–12% and resistance to 4‐hydroxyphenyl‐pyruvate‐dioxygenase (HPPD)‐inhibiting herbicides in 24–27% of Iowa fields . Of particular concern is the estimate that 57–65% of Iowa fields have A. tuberculatus populations with multiple herbicide resistance, and that three‐way herbicide resistance occurs in approximately 24% of the Iowa fields.…”

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

“…The most common three‐way herbicide resistance was to ALS‐inhibiting herbicides, photosystem II herbicides and glyphosate. Five‐way herbicide resistance was estimated to occur in 7% of Iowa fields . Clearly, management of A. tuberculatus populations with evolved resistance to five herbicide MOAs will be a great challenge.…”

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

“…Importantly, A. tuberculatus with evolved resistance to six herbicide MOAs limits herbicide choices in many soybean fields. A high percentage of fields in Iowa have A. tuberculatus populations with multiple herbicide resistance limiting the choices for effective soil‐applied herbicides …”

Section: Current Weed Management Practices In Row Cropsmentioning

confidence: 99%

“…Similarly, GE soybean cultivars with HPPD‐inhibiting herbicide tolerance may be available in the future. Given the current prevalence of A. tuberculatus with HPPD‐inhibiting herbicide resistance, as seen in Iowa, the future utility of the GE HPPD tolerant soybean cultivars to manage HR weeds may be limited because of existing resistant weed populations . Nevertheless, the new GE soybean cultivars with herbicide tolerance still focus on herbicidal weed control and, for effective contribution to the management of HR weeds, must be supplemented with more diverse tactics.…”

Section: Current Weed Management Practices In Row Cropsmentioning

confidence: 99%

See 4 more Smart Citations

Integrated pest management and weed management in the United States and Canada

et al. 2014

View full text Add to dashboard Cite

There is interest in more diverse weed management tactics because of evolved herbicide resistance in important weeds in many US and Canadian crop systems. While herbicide resistance in weeds is not new, the issue has become critical because of the adoption of simple, convenient and inexpensive crop systems based on genetically engineered glyphosate-tolerant crop cultivars. Importantly, genetic engineering has not been a factor in rice and wheat, two globally important food crops. There are many tactics that help to mitigate herbicide resistance in weeds and should be widely adopted. Evolved herbicide resistance in key weeds has influenced a limited number of growers to include a more diverse suite of tactics to supplement existing herbicidal tactics. Most growers still emphasize herbicides, often to the exclusion of alternative tactics. Application of integrated pest management for weeds is better characterized as integrated weed management, and more typically integrated herbicide management. However, adoption of diverse weed management tactics is limited. Modifying herbicide use will not solve herbicide resistance in weeds, and the relief provided by different herbicide use practices is generally short-lived at best. More diversity of tactics for weed management must be incorporated in crop systems.

show abstract

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

Section: Evolution Of Herbicide Resistance In Weedsmentioning

confidence: 99%

Section: Current Weed Management Practices In Row Cropsmentioning

confidence: 99%

Section: Current Weed Management Practices In Row Cropsmentioning

confidence: 99%

See 3 more Smart Citations

Integrated pest management and weed management in the United States and Canada

et al. 2014

View full text Add to dashboard Cite

show abstract

How well will stacked transgenic pest/herbicide resistances delay pests from evolving resistance?

2016

View full text Add to dashboard Cite

Resistance has evolved to single transgenic traits engineered into crops for arthropod and herbicide resistances, and can be expected to evolve to the more recently introduced pathogen resistances. Combining transgenes against the same target pest is being promoted as the solution to the problem. This solution will work if used pre-emptively, but where resistance has evolved to one member of a stack, resistance should easily evolve for the second gene in most cases. We propose and elaborate criteria that could be used to evaluate the value of stacked traits for pest resistance management. Stacked partners must: target the same pest species; be in a tandem construct to preclude segregation; be synchronously expressed in the same tissues; have similar tissue persistence; target pest species that are still susceptible to at least two stacked partners. Additionally, transgene products must not be degraded in the same manner, and there should be a lack of cross-resistance to stacked transgenes or to their products. With stacked herbicide resistance transgenes, both herbicides must be used and have the same persistence. If these criteria are followed, and integrated with other pest management practices, resistance may be considerably delayed. © 2016 Society of Chemical Industry.

show abstract

Monitoring the temporal changes in herbicide‐resistantAmaranthus tuberculatus: a landscape‐scale probability‐based estimation in Iowa

Hamberg,

Yadav,

Dixon

et al. 2023

Pest Management Science

View full text Add to dashboard Cite

BackgroundA landscape‐scale probability‐based sampling of Iowa soybean [Glycine max (L.) Merr.] fields was conducted in 2013 and 2019; Amaranthus tuberculatus [Moq.] J.D. Sauer seed was collected from 97 random geospatial selected fields. The objectives were to evaluate the prevalence and distribution of herbicide‐resistant A. tuberculatus (waterhemp) in soybean fields and evaluate temporal changes over 6 years. Amaranthus tuberculatus seedlings were evaluated for resistance to imazethapyr, atrazine, glyphosate, lactofen and mesotrione at 1× and 4× label rates.ResultsResistance to imazethapyr, glyphosate, lactofen and mesotrione at the 1× rate increased significantly from 2013 to 2019 and was found in 99%, 97%, 16% and 15% of Iowa A. tuberculatus populations in 2019, respectively. Resistance to atrazine at the 4× rate increased over time; atrazine resistance was found in 68% of populations in 2019. Three‐way multiple herbicide‐resistant A. tuberculatus was the most frequent and increased significantly to 4× rates from 16% in 2013 to 43% of populations in 2019. All A. tuberculatus populations resistant to HPPD‐inhibitor herbicides also were resistant to atrazine.ConclusionTo the best of our knowledge, this is the first probability‐based study that presented evolution of A. tuberculatus herbicide resistance over time. The results demonstrated that imazethapyr, atrazine and glyphosate resistance in Iowa A. tuberculatus populations was frequent whereas resistance to lactofen and mesotrione was less frequent. Most Iowa A. tuberculatus populations evolved resistance to multiple sites of action over time. The results of our study are widely applicable given the similarities in weed management practices throughout the Midwest United States. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

show abstract

Pest resistance: Overall principles and implications on evolved herbicide resistance in Iowa

Cited by 6 publications

References 25 publications

Integrated pest management and weed management in the United States and Canada

Integrated pest management and weed management in the United States and Canada

How well will stacked transgenic pest/herbicide resistances delay pests from evolving resistance?

Monitoring the temporal changes in herbicide‐resistantAmaranthus tuberculatus: a landscape‐scale probability‐based estimation in Iowa

Contact Info

Product

Resources

About