Glyphosate-Resistant Canada Fleabane Control in Winter Wheat with Postemergence Herbicides

Soltani, Nader; Shropshire, Christy; Sikkema, Peter H.

doi:10.1155/2020/8840663

Cited by 2 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At 1 and 4 WAA and 1 and 4 WAB there was no visible winter wheat injury from any of the herbicide treatments evaluated (data not presented). These results are similar to other studies that have shown minimal injury in winter wheat with herbicide applications that included pyrasulfotole, bromoxynil, fluroxypyr, halauxifen, and MCPA (Mahoney et al, 2016;McNaughton et al, 2014;Reddy et al, 2012;Robinson et al, 2015;Soltani et al, 2006Soltani et al, , 2020Quinn et al, 2020).…”

Section: Winter Wheat Injurysupporting

confidence: 90%

“…The results of this are similar to other studies in which pyrasulfotole/bromoxynil, halauxifen, fluroxypyr/halauxifen + MCPA, pyrasulfotole/bromoxynil/fluroxypyr, pyrasulfotole/bromoxynil/thiencarbazone, pyrasulfotole/bromoxynil/thiencarbazone + MCPA, and fluroxypyr/halauxifen + pyroxsulam + MCPA controlled GR Canada fleabane 94-100% in winter wheat (Soltani et al, 2020). Quinn et al (2020) reported that GR Canada fleabane was controlled 91-98% with pyrasulfotole/bromoxynil, 83-97% with fluroxypyr/halauxifen + MCPA, and 86-97% with clopyralid applied in the spring.…”

Section: Mhr Canada Fleabane Controlsupporting

confidence: 89%

“…However, Quinn et al (2020) observed no yield reduction with the POST application of clopyralid applied in the spring for the control of GR Canada fleabane in winter wheat. Similarly, other studies observed no yield reduction in winter wheat with herbicide applications that included pyrasulfotole, bromoxynil, fluroxypyr, halauxifen, and MCPA applied in the spring for the control of GR Canada fleabane (McNaughton et al, 2014;Robinson et al, 2015;Soltani et al, 2020).…”

Section: Winter Wheat Yieldmentioning

confidence: 82%

See 2 more Smart Citations

Control of Multiple-Herbicide-Resistant Canada Fleabane With Fall, Spring, and Sequential Herbicide Applications in Winter Wheat

Soltani¹,

Shropshire²,

Sikkema³

2023

JAS

View full text Add to dashboard Cite

Limited information exists on the efficacy of pyrasulfotole/bromoxynil, fluroxypyr/halauxifen-methyl + MCPA EHE, and clopyralid applied in the fall, spring, or sequentially [fall followed by (fb) spring] for the control of multiple-herbicide-resistant (MHR) Canada fleabane in winter wheat under Ontario environmental conditions. Three field experiments were initiated in the autumn of 2020 and 2021 for a total of 6 site-years to evaluate fall- and spring-applied herbicides and their sequential applications for the control of MHR Canada fleabane in winter wheat in Ontario. Pyrasulfotole/bromoxynil applied in the fall, spring, or sequentially controlled MHR Canada fleabane 83, 99, and 100%, respectively at 8 weeks after the spring application (WAB); the spring and sequential applications provided better control than the fall application. Fluroxypyr/halauxifen + MCPA and clopyralid applied in the fall, spring, or sequentially controlled MHR Canada fleabane 97 to 100% and 99 to 100%, respectively at 8 WAB. Based on orthogonal contrasts the spring and sequential herbicide applications provided greater control than the fall application (8 WAB). MHR Canada fleabane interference reduced winter wheat yield up to 27% in this study. Based on orthogonal contrasts reduced MHR Canada fleabane interference with the fall application resulted in 17% higher winter wheat yield than when herbicide application was delayed to the spring. Although MHR Canada fleabane was controlled very effectively with clopyralid winter wheat yield was lower, presumably due to crop injury; this observation will have to be explored further in future research. Results from this study indicate that pyrasulfotole/bromoxynil and fluroxypyr/halauxifen + MCPA applied in the fall can be used to effectively control MHR Canada fleabane and minimize winter wheat yield loss due to weed interference.

show abstract

Section: Winter Wheat Injurysupporting

confidence: 90%

Section: Mhr Canada Fleabane Controlsupporting

confidence: 89%

Section: Winter Wheat Yieldmentioning

confidence: 82%

See 1 more Smart Citation

Control of Multiple-Herbicide-Resistant Canada Fleabane With Fall, Spring, and Sequential Herbicide Applications in Winter Wheat

Soltani¹,

Shropshire²,

Sikkema³

2023

JAS

View full text Add to dashboard Cite

show abstract

Control of Resistant False Cleavers (Galium spurium L.) Population to ALS-Inhibiting Herbicides and Its Impact on the Growth and Yield of Durum Wheat

Sparangis

Efthimiadou²,

Katsenios³

et al. 2023

Agronomy

View full text Add to dashboard Cite

False cleavers (Galium spurium L.) is an annual broadleaf weed, commonly found in cereal crops around the world. It reduces crop yields mainly by the competition for nutrients and plant lodging, which decreases the photosynthetic rate of cultivated plants. Two field experiments were carried out in different locations to examine the efficacy of post-emergence herbicides against false cleavers in durum wheat (Triticum durum Desf.). Herbicides that belong to sulfonylureas, triazolopyrimidines, and other groups (e.g., nitriles and synthetic auxins) were applied. The results revealed that the herbicide florasulam + aminopyralid provided low efficacy (57%) against this weed species, while the most effective herbicides were bromoxynil + 2,4-D and halauxifen-methyl + florasulam. Bromoxynil + 2,4-D efficacy against false cleavers was 73% and 97% at Domokos and Velestino, respectively, while halauxifen-methyl + florasulam efficacy ranged between 89% and 97%. Moreover, the herbicides metsulfuron-methyl + bensulfuron-methyl and pyroxsulam/florasulam + 2,4-D provided low efficacy (<11%) against false cleavers, revealing resistance to ALS-inhibiting herbicides. Regarding the impact of false cleavers and other weed species on the growth of durum wheat, the results showed that the greatest dry biomass (8508.3–8922.7 kg ha−1 and 13,041.4–13,523 kg ha−1 at Domokos and Velestino, respectively) was found in the bromoxynil + 2,4-D, halauxifen-methyl + florasulam, and weed-free treatments. Similar results were also recorded for 1000-seed weights and crop yields, while there were no statistically significant differences among the treatments for spike length. Finally, our results revealed that the herbicides bromoxynil + 2,4-D and halauxifen-methyl + florasulam effectively controlled the resistant false cleavers population. However, it is important to note that halauxifen-methyl + florasulam was recently registered in Greece and other countries and, thus, should be used sensibly by farmers in a rotation with other herbicides to prevent the development of resistant populations.

show abstract

Glyphosate-Resistant Canada Fleabane Control in Winter Wheat with Postemergence Herbicides

Cited by 2 publications

References 15 publications

Control of Multiple-Herbicide-Resistant Canada Fleabane With Fall, Spring, and Sequential Herbicide Applications in Winter Wheat

Control of Multiple-Herbicide-Resistant Canada Fleabane With Fall, Spring, and Sequential Herbicide Applications in Winter Wheat

Control of Resistant False Cleavers (Galium spurium L.) Population to ALS-Inhibiting Herbicides and Its Impact on the Growth and Yield of Durum Wheat

Contact Info

Product

Resources

About