Irrigation of pepper plant (Capsicum sp.) with water containing acrolein

Caldironi, Hugo A.; Bentivegna, Diego Javier; Rhea, Miles R.

doi:10.1016/j.agwat.2004.02.006

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…Moreover, within a few hours of treatment, the water can be used for irrigation without problems to other crops (Nordone et al. , 1997; Caldironi et al. , 2004).…”

Section: Introductionmentioning

confidence: 99%

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Bentivegna¹,

Fernández²

2005

Weed Research

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Growth of the submerged weed Potamogeton pectinatus L. is a major problem in the irrigation channels located in the Lower Valley of the Colorado River (39°10¢-39°55¢S; 62°05¢-63°55¢W) in Argentina. Previous studies indicate that weed control with acrolein is effective in reducing submerged plant biomass. In this study, we evaluated the influence of some variables affecting acrolein and its dissipation in water. Three main parameters, acrolein dosage, the height of the plants and the velocity of water contributed to 80% of the reduction of the submerged weed biomass. Water flow and concentration of the chemical explained 68% of the factors influencing the dissipation of the herbicide. Water velocity, electrical conductivity, pH and the duration of application have a secondary effect in the dissipation process. The constant rate of dissipation (K) was 0.235 L h )1 (SD ±0.125), implying that the chemical will disappear from the system in <24 h. As a practical guideline for the control of mature, dense stands of P. pectinatus within the irrigation system under study, the following conditions are advisable: flow volumes of 500 L s )1 or higher, water velocity of 0.42 m s )1 or more and c. 6.5 mg L )1 concentration of acrolein for at least a 11-h period.

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“…Moreover, within a few hours of treatment, the water can be used for irrigation without problems to other crops (Nordone et al. , 1997; Caldironi et al. , 2004).…”

Section: Introductionmentioning

confidence: 99%

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Bentivegna¹,

Fernández²

2005

Weed Research

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“…This study has not dealt with effects of the herbicide at individual or ecosystem levels (e.g., sublethal effects and ecosystem function changes). As bioaccumulation of acrolein is predicted to be low [34], transference of the compound through the detrital food web is expected to be negligible.…”

Section: Discussionmentioning

confidence: 99%

Environmental effect assessment of Magnacide® H herbicide at Río Colorado irrigation channels (Argentina). tier 4: In situ survey on benthic invertebrates

Albariño

Venturino

Montagna

et al. 2007

Enviro Toxic and Chemistry

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The objective of this study was to assess the effects of Magnacide H (Baker Petrolite, TX, USA) usage on the aquatic ecosystem at the Cooperativa de Riego y Fomento (CORFO)-Rio Colorado irrigation channels, analyzing the effects on benthic invertebrates. At recommended treatment concentrations, Magnacide H kills most of the aquatic organisms; however, its presence in the channels is transient. Magnacide H caused a significant reduction in the number of taxa (58%), abundance (57%), and community diversity (67%) in the benthic assemblage with respect to untreated channels during the application period in the first year of the study. The herbicide reduced the abundance of the most abundant taxa: oligochaetes, chironomids, ostracods, and the snails Biomphalaria peregrina and Heleobia parchappii. In contrast, the herbicide only reduced invertebrate diversity during the application period at the second year of study. Two months after the applications had ceased, the benthic community in treated channels recovered their biotic attributes, reaching values similar to controls. Recovery could have occurred from upstream unimpaired reaches supplying migrating invertebrates that recolonized affected areas. Since recovery occurred within a reasonable period of time, we conclude that the impact of Magnacide H at CORFO-Río Colorado channels is acceptable from a regulatory point of view in the present practice protocol. Nevertheless, a strict control on the application conditions must be ensured to minimize the risk on the ecological receptors. We emphasize the recommendation that water release outside the channels is prevented until the product has dissipated.

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“…Further, an experiment conducted in a greenhouse, where pepper plants were irrigated with water treated with 0.25 and 0.50 mM of acrolein, showed low values of chemical concentration in the extracts of the plants (2-18 ng/gr fresh tissue to undetectable levels within the few hours). The estimated half-life of acrolein in pepper plants was of 10.3 hours (Caldironi et al, 2004).…”

Section: Terrestrial Organismsmentioning

confidence: 98%

“…Herbicide applications are a commonly used procedure to control submersed weeds in irrigation canals because of its practicability, efficacy and cost. Acrolein, currently registered under the trade name MAGNACIDE ® H by Baker Petrolite Corporation, has been used for many years in the United States (U.S.EPA, 2007), Canada (MOE, 2005), Australia (Bowmer & Sainty, 1977), and Argentina (Caldironi et al, 2004). Acrolein, also known as acraldehyde, acrylaldehyde, acrylic aldehyde, allylaldehyde, propenal, 2-propenal, prop-2-enal, prop-2-en-1-al, is a volatile, colourless, highly flammable liquid at ordinary temperature and pressure with a pungent odour.…”

Section: Introductionmentioning

confidence: 99%