Pesticidal composition for seed treatment

Details Pesticidal composition for seed treatment Pesticidal composition for seed treatment

2002-11-18

2004-05-04

Qazi, Sabiha (Department: 1616)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

C514S359000, C514S403000, C514S406000

Reexamination Certificate

active

06730312

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an at least quaternary pesticidal composition that is suitable for controlling insects and/or representatives of the order Acarina and microorganisms, especially phytopathogenic fungi, comprising (a) at least one insecticide and (b) at least three fungicides. The pesticidal composition is particularly suitable for the protection of plant propagation materials.
BACKGROUND OF THE INVENTION
Certain mixtures of active ingredients for controlling pests are described in the literature. The biological properties of those known mixtures are not entirely satisfactory in the area of pest control, toxicity, pest resistance and loading rates. The protection of plant propagation materials (seed treatments) with pesticides are target applications which partially address the need for a reduction of environmental and worker exposure and pest resistance buildup when used alone or in conjunction with foliar or furrow pesticide applications. However, there is also a need to make available other mixtures which reduce the need for older acutely toxic insecticides and to reduce loading rates. Among the older insecticides, the following may be mentioned: tefluthrin, terbufos, cypermethrin, thiodicarb, lindane, furathiocarb, acephate, butocarboxim, carbofuran, NTN, endosulfan, diethion, aldoxycarb, methiocarb, oftanol, (isofenphos), chlorpyrifos, bendiocarb, benfuracarb, oxamyl, parathion, capfos, dimethoate, fonofos, chlorfenvinphos, cartap, fenthion, fenitrothion, HCH, deltamethrin, malathion, disulfoton. Accordingly, there is a need to provide pesticide compositions and methods for the protection of plant propagation materials, especially those compositions having improved biological properties, for example synergistic pesticidal properties, especially for controlling insects and representatives of the order Acarina and microorganisms. That problem is solved according to the invention by the provision of the present at least quaternary pesticidal composition.
SUMMARY OF THE INVENTION
The present invention provides an at least quaternary composition for controlling insects or representatives of the order Acarina and microorganisms, which composition comprises: (A) at least one insecticidally or acaricidally active compound, and (B) at least three fungicidally active compounds.
More specifically, the present invention provides an at least quaternary composition for controlling insects or representatives of the order Acarina and microorganisms, especially phytopathogenic fungi, that is particularly suitable for the protection of plant propagation materials such as crop seeds; including oil seeds (especially canola (rape) seed). The at least quaternary pesticidal composition of the present invention comprises: (A) an insecticidally effective amount of at least one neonicotinoid or phenylpyrazole insecticide, and (B) a fungicidally effective amount of at least three fungicides including: (B1) at least one phenylamide (acylalanine type), (B2) at least one phenylpyrrole and (B3) at least one triazole.
The invention also relates to a process for protecting the plant propagation materials and the plants resulting therefrom against insects and fungal diseases using a pesticidal composition according to the invention. It also relates to the said plant propagation materials coated with the said pesticidal composition.
The present invention makes it possible to dress or treat seeds and other plant propagation materials with lower amounts of older acutely toxic biocides than is known from the prior art and, in most cases, replaces such older acutely toxic biocides; the invention therefore represents a material enrichment of the art.
DESCRIPTION OF SPECIFIC EMBODIMENTS
Insecticide Component (A)
Preferred are at least quaternary pesticidal compositions comprising as insecticidally active ingredient (A):
at least one neonicotinoid compound of formula (I)
wherein
A is 2-chloropyrid-5-yl, 2-methylpyrid-5-yl, 1-oxido-3-pyridinio, 2-chloro-1-oxido-5-pyridinio,
2,3-dichloro-1-oxido-5-pyridinio, tetrahydrofuran-3-yl, 5-methyl-tetrahydrofuran-3-yl or 2-chlorothiazol-5-yl group,
R is hydrogen, C
1
-C
6
alkyl, phenyl-C
1
-C
4
alkyl, C
3
-C
6
cycloalkyl, C
2
-C
6
alkenyl or C
2
-C
6
alkynyl; R
1
and R
2
are independently of each other C
1
-C
4
-alkyl, C
1
-C
4
-alkenyl, C
1
-C
4
-alkinyl, —C(═O)—CH
3
or benzyl; or together form a group —CH
2
—CH
2
—, —CH
2
—CH
2
—CH
2
—, —CH
2
—O—CH
2
—, —CH
2
—S—CH
2
—, —CH
2
—NH—CH
2
— or —CH
2
—N(CH
3
)—CH
2
—; and
X is N—NO
2
or N—CN or CH—NO
2
;, or, where appropriate, a tautomer thereof, in each case in free from or in salt form; or
at least one phenylpyrazole compound of formula (II)
 wherein
R
1
and R
2
may represent a hydrogen or halogen atom (at least one of them is preferably other than hydrogen),
R
3
may represent a halogen atom or a haloalkyl or haloalkoxy or SF
5
group, in the 4 position on the phenyl ring,
R
4
may represent an alkyl or haloalkyl group,
R
5
may represent an amino group which may be mono- or di-substituted by an alkyl or haloalkyl radical, acyl, alkoxycarbonyl, and
n is 0, 1 or 2; in free from or in salt form.
The compounds (I) may be in the form of tautomers. Accordingly, hereinbefore and hereinafter, where appropriate the compound compounds (I) are to be understood to include corresponding tautomers, even if the latter are not specifically mentioned in each case.
The compounds (I) to (II) are capable of forming acid addition salts. Those salts are formed, for example, with strong inorganic acids, such as mineral acids, for example perchloric acid, sulfuric acid, nitric acid, nitrous acid, a phosphoric acid or a hydrohalic acid, with strong organic carboxylic acids, such as unsubstituted or substituted, for example halo-substituted, C
1
-C
4
alkanecarboxylic acids, for example acetic acid, saturated or unsaturated dicarboxylic acids, for example oxalic, malonic, succinic, maleic, fumaric or phthalic acid, hydroxycarboxylic acids, for example ascorbic, lactic, malic, tartaric or citric acid, or benzoic acid, or with organic sulfonic acids, such as unsubstituted or substituted, for example halo-substituted, C
1
-C
4
alkane- or aryl-sulfonic acids, for example methane- or p-toluene-sulfonic acid. Furthermore, compounds of formula (I) or (II) having at least one acidic group are capable of forming salts with bases. Suitable salts with bases are, for example, metal salts, such as alkali metal or alkaline earth metal salts, for example sodium, potassium or magnesium salts, or salts with ammonia or an organic amine, such as morpholine, piperidine, pyrrolidine, a mono-, di- or tri-lower alkylamine, for example ethyl-, diethyl-, triethyl- or dimethyl-propyl-amine, or a mono-, di- or tri-hydroxy-lower alkylamine, for example mono-, di- or tri-ethanolamine. In addition, corresponding internal salts may also be formed. Preference is given within the scope of the invention to agrochemically advantageous salts. In view of the close relationship between the compounds of formula (I) and (II) in free form and in the form of their salts, any reference hereinbefore or hereinafter to the free compounds of formula (I) and (II) or to their respective salts is to be understood as including also the corresponding salts or the free compounds of formula (I) and (II), where appropriate and expedient. The same applies in the case of tautomers of compounds of formula (I) and (II) and the salts thereof. The free form is generally preferred in each case.
Preferred compounds of the formula (I) are those wherein
A is a pyrid-3-yl, 2-chloropyrid-5-yl, 2-chloro-1-oxido-5-pyridinio or 2-chlorothiazol-5-yl group;
particularly a 2-chloropyrid-5-yl group or preferably a 2-chlorothiazol-5-yl group;
wherein R is C
1
-C
6
alkyl, phenyl-C
1
-C
4
alkyl, C
3
-C
4
alkenyl or C
3
-C
4
alkynyl;
more especially C
1
-C
4
alkyl, preferably methyl;
R
1
and R
2
are independently of each other C
1
-C
4
-alkyl or benzyl, or together a group —CH
2
—CH
2
—, —CH
2
—CH
2
—CH
2
—, —CH
2
—O—CH
2
—, —CH
2
—S—CH
2
—, —CH
2
—NH—CH
2
—, —CH
2
—

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