Volatilization and Distribution of Methyl Iodide and Methyl Bromide after Subsoil Application

Gan, Jianying; Yates, Scott R.; Ohr, H. D.; Sims, James J.

doi:10.2134/jeq1997.00472425002600040023x

Cited by 35 publications

(45 citation statements)

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“…For example, Hytibar film has been shown to reduce emissions of the fumigant chloropicrin from 82% in a control to just 4% (Gan et al, 2000). In a loamy sand, clay loam and nursery potting mix under polyethylene tarp, emissions of 38, 53, and 33%, respectively, were observed for MeI (Gan et al, 1997). Again, these were higher than the values for MeBr of 32, 41, and 30%, respectively.…”

Section: Emissions Of Mei From Soilmentioning

confidence: 99%

“…In the published literature, Gan et al (1997) reported a series of column experiments to compare soil emissions of MeI and MeBr under differing soil types and surface tarps. They observed that total MeI loss from the soil was generally greater than MeBr under the same conditions.…”

Section: Emissions Of Mei From Soilmentioning

confidence: 99%

“…Also using a column approach, Gan et al (1997) studied the soil distribution of shank-injected (30 cm depth) MeI and MeBr in relation to soil type and plastic tarp treatments. Comparing the two fumigants, these authors found that MeI behaved to a great extent like MeBr.…”

Section: Soil Distributionmentioning

confidence: 99%

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Methyl Iodide

Ashworth¹,

Yates²

2010

Hayes' Handbook of Pesticide Toxicology

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Section: Emissions Of Mei From Soilmentioning

confidence: 99%

Section: Emissions Of Mei From Soilmentioning

confidence: 99%

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Methyl Iodide

Ashworth¹,

Yates²

2010

Hayes' Handbook of Pesticide Toxicology

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“…Polyethylene (PE) films are most commonly used in soil fumigation, but these films are reportedly permeable by MeBr [7][8][9][10][11][12] and other soil fumigants. 12,13) To reduce emissions and to develop fumigation management practices that protect the environment while providing adequate pest control, they must also maintain their impermeability to fumigant vapors under field conditions. Experiments to assess the volatilization of soil fumigants from a soil surface covered with plastic film have been conducted in the laboratory for MeBr, MeI, 12) 1,3-D, and CP.…”

Section: Introductionmentioning

confidence: 99%

“…Experiments to assess the volatilization of soil fumigants from a soil surface covered with plastic film have been conducted in the laboratory for MeBr, MeI, 12) 1,3-D, and CP. 13) Field trials have also been conducted to measure the volatilization of MeBr, [10][11][12]14,15) MeI, 12) and 1,3-D 16) from the soil surface when covered with different plastic films.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of permeation rates of soil fumigants through plastic films by the cup method

et al. 2012

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This article presents a new approach for estimating the mass transfer coefficient (h, a measure of permeability) of fumigant compounds across several agricultural films. The assembled equipment provides a sealed permeability cell, where a film sample is set at the top of a static reservoir cell. Fumigant liquid is put into the cell and the gravimetric change of the cell is monitored sequentially over time using an analytical balance. The h of the fumigants across various plastic films were determined. Results show that the method is a sensitive and reproducible measure of film permeability, and suggest that film-fumigant combination and temperature had the largest impact on the h of fumigant compounds across films. Furthermore, the relative magnitude of the h on the fumigant and film material was predictable from the combination of their solubility parameters.

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Physical, chemical and environmental properties of selected chemical alternatives for the pre‐plant use of methyl bromide as soil fumigant

Ruzo

2005

Pest Management Science

114

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Production and use of methyl bromide, a soil fumigant, are being restricted because of this chemical's deleterious effects on stratospheric ozone concentrations. Several products, some of which are currently used as soil fumigants, are being considered as possible replacements for methyl bromide, alone and in various combinations. Among these, 1,3-dichloropropene, methyl isothiocyanate generators such as metam-sodium, and chloropicrin are currently registered, while others such as methyl iodide and sodium azide are at different stages of the registration process. This review examines physicochemical properties, environmental fate, and metabolism of the various potential methyl bromide replacement products.

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Volatilization and Distribution of Methyl Iodide and Methyl Bromide after Subsoil Application

Cited by 35 publications

References 0 publications

Methyl Iodide

Methyl Iodide

Evaluation of permeation rates of soil fumigants through plastic films by the cup method

Physical, chemical and environmental properties of selected chemical alternatives for the pre‐plant use of methyl bromide as soil fumigant

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