Pesticide treatment of soils or substates with sulphur compounds

• US 20040087665A1
• Filed: 09/17/2003
• Published: 05/06/2004
• Est. Priority Date: 03/19/2001
• Status: Abandoned Application

• Current Assignee: Jacques Auger, Thierry Aubert
• Original Assignee: Jacques Auger, Thierry Aubert
• Inventors: Auger, Jacques, Aubert, Thierry
• Application Number:
  US10/472,083
• Publication Number:
  US 20040087665A1
• Time in Patent Office: Days
• US Class Current: 514/707
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/18 Vapour or smoke emitting compositions with delayed or sustained release
• CPC Class Codes: A01N 29/00 Biocides, pest repellants or attractants, or plant growth regulators containing halogenated hydrocarbons
• CPC Class Codes: A01N 31/02 Acyclic compounds
• CPC Class Codes: A01N 41/02 containing a sulfur-to-oxygen double bond
• CPC Class Codes: A01N 41/08 Sulfonic acid halides; alpha-Hydroxy-sulfonic acids; Amino-sulfonic acids; Thiosulfonic acids; Derivatives thereof
• CPC Class Codes: A01N 41/10 Sulfones; Sulfoxides
• CPC Class Codes: A01N 41/12 not containing sulfur-to-oxygen bonds, e.g. polysulfides
• CPC Class Codes: A01N 47/08 the carbon atom having one or more single bonds to nitrogen atoms
• CPC Class Codes: A01N 47/12 containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
• CPC Class Codes: A01N 59/04 Carbon disulfide; Carbon monoxide; Carbon dioxide

Abstract

In order to replace methyl bromide in all the uses thereof in soil or substrate treatment, the invention relates to the use of at least one sulphur compound having general formula: wherein R represents an alkenyl or alkyl radical, n is equal to 0, 1 or 2, x is a number between 0 and 4 and R′ represents an alkenyl or alkyl radical or, only if n=x=0, a hydrogen or alkali-metal atom. The sulphur compounds (in particular dimethyldisulphide) can be applied according to standard soil treatment methods (by injection, spraying, dripping, sprinkling) and said compounds have no phototoxic effects.

Claims

1. Pesticidal (nematicidal, fungicidal, insecticidal and bactericidal) treatment of soils or substrates, preferably by fumigation, characterized in that there is applied to the soil or in the substrate at least one sulphur compound of general formula:

2. Treatment according to claim 1, in which the radicals R and R′

of the compound(s) of formula (I) are chosen from methyl, propyl, allyl and 1-propenyl radicals.

3. Treatment according to claim 1 or 2, in which the number n of the compound(s) of formula (I) is equal to zero.

4. Treatment according to one of claims 1 to 3, in which the sulphur compound is a disulphide.

5. Treatment according to one of claims 1 to 4, in which the sulphur compound is DMDS.

6. Treatment according to one of claims 1 to 5, in which the sulphur compound is applied in the pure state or in the form of an aqueous emulsion, a microemulsion, a solution in a biodegradable solvent or a product which is microencapsulated or supported by a solid.

7. Treatment according to one of claims 1 to 6, in which the compound(s) of formula (I) is(are) applied at a dose between 150 and 1000 kg/ha.

8. Treatment according to claim 7, in which the sulphur compound has no phytotoxic effect.

9. Treatment according to one of claims 1 to 8, combined with a treatment (simultaneous or otherwise) with one or more other pesticidal substances.