1. BACKGROUND

Summary

Cyanogen^TM, also referred to as ethane dinitrile, is showing promising results as an alternative fumigant to MB for soil disinfestation in trials in Australia, on fruit and carrots (Ren et al., 2003; Mattner et al., 2003)

Product characteristics

• Composition : C₂N₂
• Appearance : Bitter almond odor
• Boiling point : - 21.2 °C
• Vapor pressure 20°C : 4.8 bars
• Cyanogen has a high vapour pressure and does not persist long in soils.

2. APPLICATION DIRECTIONS

Preliminary results show efficacy against soil born pathogens and weeds, but it has not been tested extensively against nematodes (Mattner et al., 2003). However, application technologies need to be developed to increase its retention time in soils to provide adequate exposure times against some pests.

3. EXPERIMENTAL PERMITS AND REGISTRATION

In Europe, development in fields are pending in Spain in strawberry runners (López-Aranda et al., 2006, López-Aranda et al., 2007) at 400kg/ha of active ingredient.

4. REFERENCES

• Mattner, S.W., Gregorio, R., Ren Y.L., Hyland T.W., Gounder, R.K., Sarwar, M. and Porter, I.J. (2003). Application techniques influence the efficacy of ethanedinitrile (C2N2) for soil disinfestation. Annual International Research Conference on Methyl Bromide Alternatives and Emission Reductions, Nov. 3-6, 2003, San Diego, California, pp. 127.1-127.4.
• Ren, Y., C. Waterford, J. Matthiessen, S. Mattner, R. Gregorio, and M. Sarwar. (2003). First results from ethanedinitrile (C2N2) field trials in Australia. Annual International Research Conference on Methyl Bromide Alternatives and Emissions Reductions, Nov.3 - 6, 2003, San Diego, California, pp. 25.1 – 25.3.
• López-Aranda, J.M., Miranda, L., Romero, F., De Los Santos, B., Soria, C. Medina, J.J. Montes, F. , Vega, J. M., Páez, J.I., Bascón, J. Talavera, M. Pérez R. and Zea, T. (2006). Alternativas químicas al bromuro de metilo en fresa. Trabajos realizados en España sobre alternativas al bromuro de metilo en fresa: Resumen de resultados (Research undertaken in Spain on alternatives to methyl bromide: summary of results). In: International Workshop on Alternatives to Methyl Bromide for strawberries and flowers, August 22 – 23, 2006 Ixtapan de la Sal, Mexico
• López-Aranda, J.M.and al. Strawberry production in Spain : Alternatives to methyl bromide – 2007 – results.Annual International Research Conference on Methyl Bromide Alternatives and Emission Reductions, Nov. 3-6, 2007, San Diego, California, pp. 64.1-64.4.

Contacts

www.linde-gas.fr

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Ethane dinitrile

Writing Date : 2008-08-29
Latest update Date : 2008-08-29