Role of temperature and water potential on the activity of some acetanilide herbicides on three<i>Phaseolus</i>taxa

Rensburg, Eugéne van; Dyk, L. P. van; Swardt, G. H. de

doi:10.1080/02571862.1990.10634549

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…The herbicide acetochlor was used extensively for the first time in the United States after its conditional registration by the U.S. Environmental Protection Agency (USEPA) in March 1994 (). However, acetochlor has had a multiyear history of international use prior to its registration in the United States ( − ). Acetochlor is a preemergent herbicide used to control competing grasses and some broadleaf weeds in corn.…”

Section: Introductionmentioning

confidence: 99%

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Acetochlor in the Hydrologic System in the Midwestern United States, 1994

Kolpin

Nations

Goolsby

et al. 1996

Environ. Sci. Technol.

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The herbicide acetochlor [2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide] was given conditional registration in the United States by the U.S. Environmental Protection Agency in March 1994. This registration provided a rare opportunity to investigate the occurrence of a pesticide during its first season of extensive use in the midwestern United States. Water samples collected and analyzed by the U.S. Geological Survey during 1994 documented the distribution of acetochlor in the hydrologic system; it was detected in 29% of the rain samples from four sites in Iowa, 17% of the stream samples from 51 sites across nine states, and 0% of the groundwater samples from 38 wells across eight states. Acetochlor exhibited concentration increases in rain and streams following its application to corn in the midwestern United States, with 75% of the rainwater and 35% of the stream samples having acetochlor detected during this time period. Acetochlor concentrations in rain decreased as the growing season progressed. Based on the limited data collected for this study, it is anticipated that acetochlor concentrations will have a seasonal pattern in rain and streams similar to those of other acetanilide herbicides examined. Possible explanations for the absence of acetochlor in groundwater for this study include the rapid degradation of acetochlor in the soil zone, insufficient time for this first extensive use of acetochlor to have reached the aquifers sampled, and the possible lack of acetochlor use in the recharge areas for the wells examined.

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Section: Introductionmentioning

confidence: 99%

“…However, acetochlor has had a multiyear history of international use prior to its registration in the United States (2)(3)(4). Acetochlor is a preemergent herbicide used to control competing grasses and some broadleaf weeds in corn.…”

Section: Introductionmentioning

confidence: 99%

Acetochlor in the Hydrologic System in the Midwestern United States, 1994

Kolpin

Nations

Goolsby

et al. 1996

Environ. Sci. Technol.

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“…However, when rainfall was less than 10 cm, increasing soil temperatures either increased or decreased the probability of successful weed control, depending on the herbicide or herbicide combination. The decrease in the probability of successful weed control at warmer soil temperatures observed with some treatments may be due to increased herbicide degradation in both the plant and soil at warmer temperatures 15,16,30–32 . Increased herbicide uptake at warmer temperatures has been reported in velvetleaf ( Abutilon theophrasti Medik.)…”

Section: Resultsmentioning

confidence: 92%

“…The decrease in the probability of successful weed control at warmer soil temperatures observed with some treatments may be due to increased herbicide degradation in both the plant and soil at warmer temperatures. 15,16,[30][31][32] Increased herbicide uptake at warmer temperatures has been reported in velvetleaf (Abutilon theophrasti Medik.) and soybean (Glycine max L.…”

Section: Effect Of Soil Temperature Variationmentioning

confidence: 99%

Future efficacy of pre‐emergence herbicides in corn (Zea mays) is threatened by more variable weather

Landau

Hager

Tranel

et al. 2021

Pest Management Science

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BACKGROUND By 2050, weather is expected to become more variable with a shift towards higher temperatures and more erratic rainfall throughout the U.S. Corn Belt. The effects of this predicted weather change on pre‐emergence (PRE) herbicide efficacy have been inadequately explored. Using an extensive database, spanning 252 unique weather environments, the efficacy of atrazine, acetochlor, S‐metolachlor, and mesotrione, applied PRE alone and in combinations, was modeled on common weed species in corn (Zea mays L.). RESULTS Adequate rainfall to dissolve the herbicide into soil water solution so that it could be absorbed by developing weed seedlings within the first 15 days after PRE application was essential for effective weed control. Across three annual weed species, the probability of effective control increased as rainfall increased and was maximized when rainfall was 10 cm or more. When rainfall was less than 10 cm, increasing soil temperatures had either a positive or negative effect on the probability of effective control, depending on the herbicide(s) and weed species. Herbicide combinations required less rainfall to maximize the probability of effective control and had higher odds of successfully controlling weeds compared with the herbicides applied individually. CONCLUSIONS Results of this study highlight the importance of rainfall following PRE herbicide application. As rainfall becomes more variable in future, the efficacy of common PRE herbicides will likely decline. However, utilizing combinations of PRE herbicides along with additional cultural, mechanical, biological, and chemical weed control methods will create a more sustainable integrated weed management system and help U.S. corn production adapt to more extreme weather. © 2021 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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A derivative photoelectrochemical sensing platform for herbicide acetochlor based on TiO2–poly (3-hexylthiophene)–ionic liquid nanocomposite film modified electrodes

Jin

Wang

et al. 2014

Talanta

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Role of temperature and water potential on the activity of some acetanilide herbicides on threePhaseolustaxa

Cited by 4 publications

References 8 publications

Acetochlor in the Hydrologic System in the Midwestern United States, 1994

Acetochlor in the Hydrologic System in the Midwestern United States, 1994

Future efficacy of pre‐emergence herbicides in corn (Zea mays) is threatened by more variable weather

A derivative photoelectrochemical sensing platform for herbicide acetochlor based on TiO2–poly (3-hexylthiophene)–ionic liquid nanocomposite film modified electrodes

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