Herbicide resistant barnyardgrass in Iran and Turkey

Haghnama, Kianoosh; Mennan, Hüsrev

doi:10.1590/s0100-83582020380100060

Cited by 5 publications

(5 citation statements)

References 17 publications

(19 reference statements)

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“…Similar to visible control data, the amount of bispyribac-sodium required to reduce 50% of the biomass (GR 50 ) across all the biotypes ranged from 26 to 59 g ha– 1 , suggesting a 2-fold to 5-fold resistance (Table 3). Barnyardgrass resistance to bispyribac-sodium has been reported from seven countries so far, and reported resistance levels ranged from 2-fold to 42-fold (Chen et al 2016; Haghnama and Mennan 2020; Heap 2022; Kacan et al 2020; Panozzo et al 2017; Riar et al 2012).…”

Section: Resultsmentioning

confidence: 99%

“…Some field studies also reported failed barnyardgrass control with the herbicide (Choudhary and Dixit 2018). Evolution of resistance in barnyardgrass for bispyribac-sodium has been already reported in Italy, South Korea, Turkey, Brazil, the United States, China, and Iran (Chen et al 2016;Haghnama and Mennan 2020;Heap 2022;Kacan et al 2020;Riar et al 2012). However, ALS-resistant barnyardgrass has not yet been confirmed in India.…”

Section: Introductionmentioning

confidence: 96%

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First report on ALS herbicide resistance in barnyardgrass (Echinochloa crus-galli) from rice fields of India

et al. 2023

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Bispyribac-sodium which is an acetolactate synthase inhibiting herbicide is a frequently used herbicide for the control of weeds in rice fields of India including the most common noxious weed barnyardgrass. However, recently rice growers reported reduced control of barnyardgrass with bispyribac-sodium. Hence, a large-scale survey was carried out and collected 37 putative barnyardgrass biotypes for bispyribac-sodium resistance in two rice growing states Chhattisgarh and Kerala. Open field pot experiments were conducted for two years to confirm the resistance in those biotypes. Of the tested 37 biotypes, 30% of the biotypes (11) survived recommended label rate of bispyribac-sodium (25 g ai ha-1). The effective rate of bispyribac-sodium required to achieve 50% control (ED50) of putative resistant biotypes ranged from 18 to 41 g ha-1, whereas it was about 10 g ha-1 in susceptible biotypes. This suggests that putative biotypes were 2 to 4 times resistant to bispyribac-sodium. At 6 days after herbicide application, in-vitro enzyme assay showed higher ALS enzyme activity in putative resistant biotypes (66 to 75%) compared to susceptible biotypes (48 to 52%). This indicates insensitive ALS enzyme to bispyribac-sodium in those biotypes and target site mutation as possible mechanism for resistance. Whole-plant bioassay also suggested that the resistance problem is more widespread in Chhattisgarh than in Kerala state. This study confirmed the first case of evolved resistance in barnyardgrass to bispyribac-sodium in rice fields of India.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

First report on ALS herbicide resistance in barnyardgrass (Echinochloa crus-galli) from rice fields of India

et al. 2023

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“…However, resistance to these herbicides has increased in recent years. [3][4][5] Echinochloa spp. has evolved resistance to herbicides having several mechanisms of action due to target and non-target site mechanisms.…”

Section: Introductionmentioning

confidence: 99%

“…The acetyl‐CoA carboxylase (ACCase) inhibiting herbicides are largely used to control ALS‐resistant biotypes. However, resistance to these herbicides has increased in recent years 3–5 . Echinochloa spp.…”

Section: Introductionmentioning

confidence: 99%

The safener isoxadifen‐ethyl confers fenoxaprop‐p‐ethyl resistance on a biotype of Echinochloa crus‐galli

Cutti

Rigon

Girelli

et al. 2022

Pest Management Science

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BACKGROUND: Some herbicides are commercially formulated with safeners to increase crop selectivity. Fenoxaprop-p-ethyl is formulated with the safener isoxadifen-ethyl for Echinochloa crus-galli control in rice. Safeners act on crops by increasing herbicide metabolism, but this effect may also occur in weeds. The objective of this study was to investigate the effect of the safener isoxadifen-ethyl on the resistance to fenoxaprop-p-ethyl in a biotype of E. crus-galli.RESULTS: A screening of 52 biotypes identified lack of control in the biotype SANTPAT-R treated with the recommended dose of 69 g ha −1 of the commercial formulation of fenoxaprop-p-ethyl with the safener isoxadifen-ethyl. While this biotype survived doses greater than 2208 g ha −1 of the formulation fenoxaprop-p-ethyl + isoxadifen-ethyl, it was killed with 69 g ha −1 of fenoxaprop-p-ethyl without the safener. A glutathione-s-transferase (GST) enzymes inhibitor reduced the resistance factor in two dose-response curves. A minor effect of a CytP450 inhibitor was observed. The previous spraying of the safener isoxadifen-ethyl followed by fenoxaprop-p-ethyl induced survival in the resistant but not in the susceptible biotype. The GST1 and GSTF1 genes were up-regulated in the resistant biotype. ACCase gene mutations were not found, and no cross-resistance to other ACCase inhibitors was identified.CONCLUSION: The safener isoxadifen-ethyl present in the commercial herbicide formulation of fenoxaprop-p-ethyl is associated with resistance in the E. crus-galli SANTPAT-R biotype. This resistance is related with herbicide metabolization mediated by GST pathways. This is the first field-selected weed biotype with herbicide resistance due to safener presence in the sprayed formulation.

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“…Competition for light between rice and barnyard grass was reported to result in rice grain yield losses of 13 to 55% (Zhang et al, 2017). It is well adapted to wet soils, and is common in both temperate and tropical crops, being reported in 36 crops in over 60 countries (Haghnama and Mennan, 2020;Zhang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Investigating the resistance of barnyard grass populations to pretilachlor in direct-seed rice in the Central Region of Vietnam

Nguyen¹,

Tran²,

Paul³

et al. 2022

Afr. J. Agric. Res.

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Barnyard grass (Echinochloa crus-galli (L.) Beauv.) is a major weed widely distributed across the world and causes serious damage to rice production. Yield loss due to barnyard grass was estimated at about 7 to 27% in Vietnam. This study aimed to investigate the rice production, weed impacts, herbicide usage and herbicide resistance in the Central Region of Vietnam. A survey of farmers producing rice and yield loss due to weeds conducted in Central Region showed that men mainly educated at primary and secondary schools was the main labour source in rice production. The density of barnyard grass and weed index was 13.9 plants m -2 and 14.1%, respectively, in the fields that weeds had regrown after application of herbicide. Screening in the greenhouse indicated that resistance to pretilachlor was found in populations of barnyard grass in Thua Thien Hue. The field trial indicated that a concentration of pretilachlor at the recommended rate (0.3 kg a.i. ha -1 ) was no longer effective in controlling barnyard grass. This indicates the resistance in populations of barnyard grass in Thua Thien Hue to pretilachlor in the field. The current result is the first report of resistance of barnyard grass to chloroacetamide in Vietnam.

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Herbicide resistant barnyardgrass in Iran and Turkey

Cited by 5 publications

References 17 publications

First report on ALS herbicide resistance in barnyardgrass (Echinochloa crus-galli) from rice fields of India

First report on ALS herbicide resistance in barnyardgrass (Echinochloa crus-galli) from rice fields of India

The safener isoxadifen‐ethyl confers fenoxaprop‐p‐ethyl resistance on a biotype of Echinochloa crus‐galli

Investigating the resistance of barnyard grass populations to pretilachlor in direct-seed rice in the Central Region of Vietnam

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