Cyperus difformis evolves resistance to propanil

Valverde, Bernal E.; Boddy, Louis G.; Pedroso, Rafael Munhoz; Eckert, J. E.; Fischer, Albert J.

doi:10.1016/j.cropro.2014.04.001

Cited by 18 publications

(18 citation statements)

References 30 publications

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“…More than a decade after propanil was reintroduced, resistance was reported in C. difformis . This represented the first report of resistance to propanil outside the Poaceae family, as well as the first instance of C. difformis resistance to a mechanism of action other than ALS inhibition .…”

Section: Introductionmentioning

confidence: 80%

“…Propanil‐R and propanil‐S C. difformis lines were single‐seed descents obtained from two populations originally collected from rice fields in the Northern Sacramento Valley of California and previously determined as propanil‐R (CYP2) or propanil‐S (CYP‐S) . Twenty plants of CYP2 and CYP‐S were grown in a greenhouse and cloned by separating tillers of plants at the four‐tiller stage.…”

Section: Methodsmentioning

confidence: 99%

“…Propanil was first introduced to California rice in 1967, and its use was temporarily suspended in the mid‐1990s owing to off‐site movement to orchards and other crops . The evolution of resistance to ALS inhibitors was the main driver of propanil reregistration in 1997, following the adoption of new use regulations.…”

Section: Introductionmentioning

confidence: 99%

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A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

Pedroso

Al‐Khatib

Alarcón‐Reverte

et al. 2016

Pest Management Science

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The D1 Val219 Ile modification in C. difformis causes resistance to propanil, diuron, metribuzin and bromoxynil but increased susceptibility to bentazon, suggesting that the Val219 residue participates in binding of these herbicides. This is the first report of a higher plant exhibiting target-site propanil resistance. Tank mixing of bentazon and propanil, where permitted, can control both propanil-R and propanil-S C. difformis and prevent the spread of the resistant phenotype. © 2016 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 80%

Section: Methodsmentioning

confidence: 99%

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A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

Pedroso

Al‐Khatib

Alarcón‐Reverte

et al. 2016

Pest Management Science

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“…The most commonly used herbicides for the control of C. difformis in rice are the ALS-inhibiting herbicides azimsulfuron, bensulfuron-methyl, bispyribac-sodium, cyclosulfamuron, ethoxysulfuron, halosulfuron-methyl, imazamox, imazethapyr, imazosulfuron, orthosulfamuron, penoxsulam, and pyrazosulfuron-ethyl [16,17]. Propanil, a photosystem II (PSII) inhibitor, was also used selectively in rice to control both dicotyledonous and monocotyledonous weeds [18]. In addition, bentazone, a photosystem II (PSII) inhibitor, is used selectively in rice to control both broadleaf weeds and sedges.…”

Section: Introductionmentioning

confidence: 99%

Molecular basis of Cyperus difformis cross-resistance to ALS-inhibiting herbicides

Ntoanidou

Kaloumenos

Diamantidis

et al. 2016

Pesticide Biochemistry and Physiology

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“…Field research has shown that California arrowhead is a fairly weak competitor in rice systems (Gibson et al 2001) and that the ALS-resistant biotypes can be adequately controlled with other registered herbicides. Recently, smallflower umbrella sedge biotypes with multiple resistance to the PSII herbicide propanil and to several ALS-inhibiting herbicides were identified in the Sacramento Valley (Valverde et al 2014), and research is ongoing to elucidate the mechanisms of resistance and any cross resistance to other rice herbicides.…”

Section: Herbicide Resistance In Californiamentioning

confidence: 99%

Herbicide-resistant weeds challenge some signature cropping systems

Hanson¹,

Wright²,

Sosnoskie³

et al. 2014

Cal Ag

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Invasive and endemic weeds pose recurring challenges for California land managers. The evolution of herbicide resistance in several species has imposed new challenges in some cropping systems, and these issues are being addressed by UC Cooperative Extension farm advisors, specialists and faculty. There are currently 24 unique herbicide-resistant weed biotypes in the state, dominated by grasses and sedges in flooded rice systems and, more recently, glyphosate-resistant broadleaf and grass weeds in tree and vine systems, roadsides and glyphosate-tolerant field crops. Weed scientists address these complex issues using approaches ranging from basic physiology and genetics research to applied research and extension efforts in grower fields throughout the state. Although solutions to herbicide resistance are not simple and are affected by many biological, economic, regulatory and social factors, California stakeholders need information, training and solutions to address new weed management problems as they arise. Coordinated efforts conducted under the Endemic and Invasive Pests and Disease Strategic Initiative directly address weed management challenges in California's agricultural industries. E ndemic and invasive weeds are important management concerns in California due to their direct and indirect costs to agriculture, the environment and society. Pimentel et al. (2005) estimated that weeds cost U.S. crop producers and pasture managers over $30 billion in control-related expenses and reduced productivity. Although specific data are not available for California's portion of these losses, weed management costs for the state's 40 million acres of crop and grazing lands, as well as the remaining 60 million acres of land area, amount, undoubtedly, to several billion dollars annually. In addition to the direct cost of weed control and lost agricultural productivity, weeds also affect ecosystem quality and function, reduce recreational access and degrade aesthetics in natural areas, change wildland fire regimes and severity, and impede water flow through rivers and canals, among other negative impacts.Although crop weeds are seldom considered as being "invasive" in the traditional sense, novel biotypes can develop, spread and subsequently occupy a greater proportion of crop acreage than might normally be expected. For example, when a weed population evolves resistance to an herbicide or any other control measure, a "routine" pest can become a new and serious problem. The first case of an herbicide-resistant weed in California was reported in 1981 by UC scientists (Holt et al. 1981); in recent years, additional species have evolved resistance to various herbicide chemistries ( A stone fruit orchard in Fresno County is dominated by glyphosate-resistant horseweed. Reliance on one method of weed control imposes selection pressure, which can lead to population shifts to tolerant species or selection of resistant biotypes. Anil ShresthaO nce pests and diseases become established, their interactions with crops, landscapes or an...

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Cyperus difformis evolves resistance to propanil

Cited by 18 publications

References 30 publications

A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

Molecular basis of Cyperus difformis cross-resistance to ALS-inhibiting herbicides

Herbicide-resistant weeds challenge some signature cropping systems

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Cyperus difformis evolves resistance to propanil

Cited by 18 publications

References 30 publications

A psbA mutation (Val219 to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

A psbA mutation (Val219 to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

Molecular basis of Cyperus difformis cross-resistance to ALS-inhibiting herbicides

Herbicide-resistant weeds challenge some signature cropping systems

Contact Info

Product

Resources

About

A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis

A psbA mutation (Val₂₁₉ to Ile) causes resistance to propanil and increased susceptibility to bentazon in Cyperus difformis